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Kalshi · Sports · event · KXKBORFI

Kalshi KXKBORFI — KBO First Inning Run Data

Every Kalshi “KBO First Inning Run” contract of the day — every trade print and the complete Level-2 book, captured co-located with nanosecond venue and receive timestamps. 167 trading days as day bundles, €1 per day, bought as a guest with instant download.

Trading days
167
Coverage
May 2026 – present
Archive size
246 MB
Price per day
€1
Activity & identifier

KBO First Inning Run on Kalshi — activity

Trades and USD turnover summed over every contract of the series across 28 captured days to 2026-11-02, from the recorded tick data — the per-day averages divide by the captured days. Buy share, quoted spread (in contract price cents, 0..1 = 100 ¢), best-bid/ask depth and Level-2 update counts are turnover-weighted over the same window.

Series ticker
KXKBORFI
Avg trades / day
230
Avg turnover / day
$3.4K
Captured days
28
Trades (30d)
6,446
Turnover (30d)
$93.8K
Contracts traded / day
2
Buy share
49 %
Avg spread
12.2 ¢
Top-1 depth
$297.1
L2 updates / day
43.3K
L2 updates / trade
188.1
Turnover on settlement day
98 %
Days traded before settling (median)
1
Market types (KBO on Kalshi)
spread / handicap 2,356 · total / over-under 2,356 · moneyline / winner 1,590
30d vs prior 30d
−34.8 %
Since 2026-08-09
24.8K trades · $359.8K
Record day
$19.6K · 2026-10-09
Files on latest day
2
What's in a bundle

One purchase, the whole series for a day

A series-day bundle contains every KBO First Inning Run contract that was listed on Kalshi on that UTC day — traded or not — 2 contract files on the latest covered day. Each file carries the full raw feed: every trade print with price, size and side, plus Level-2 order-book updates, in the same zstd-compressed schema as our crypto venues. Event contracts quote 0..1; turnover is USD-normalized.

Coverage runs May 2026 – present — 167 trading days, 246 MB compressed in total. A day typically holds 14 contract files (up to 24 on the busiest day, 28.2 MB). Pick individual days in the shop calendar for €1 each; delivery is an instant per-file download or one archive for the whole day.

Month by month

KBO First Inning Run — development since capture

24,823 trades and $359.8K of USD turnover over 84 captured days since 2026-08-09 — record day 2026-10-09 with $19.6K, biggest single contract KXKBORFI-26OCT090100KIANCD-Y (KIANCD · 2026-10-09 05:00 UTC · Y) (2026-10-09, $12.6K).

MonthDaysTradesTurnover (USD)Avg / dayContracts tradedL2 updatesvs previous month
Nov 2026 (month to date)21$0.99$0.512.8K—
Oct 2026297,388$108.6K$3.7K761.4M−28.4 %
Sep 20263010,462$151.6K$5.1K1252.9M+52.2 %
Aug 2026236,972$99.6K$4.3K1162.7M—

Kalshi KBO First Inning Run — trades and USD turnover summed per calendar month (UTC) over every contract, from our own daily statistics of the recorded tick data. Days = captured UTC days; a partial month shows no month-over-month change. Contracts traded and L2 (order-book) updates exist for days captured with the extended statistics.

Opening price vs outcome

KBO First Inning Run — did the favourite win?

The side the opening price favoured finished in the money 55 % of the time across 210 settled KBO First Inning Run contracts that opened away from 50 ¢ among the day's most traded contracts, 2026-08-10 – 2026-11-02. Contracts opening at 50–60 ¢ — 109 of them — closed Yes 54 % of the time.

Opening priceContractsClosed YesClosed NoYes shareOpen at last print
40–50 ¢105465247 %7
50–60 ¢109534554 %11
other opening prices32151550 %2
Total24611411250 %20

Opening price = the contract's first recorded print on the first day it ranked among the day's ten most traded contracts of the series (not its listing price), grouped in 10 ¢ steps (contracts quote 0..1 = 100 ¢). Outcome implied by its last recorded print across the window (≥ 0.97 = Yes, ≤ 0.03 = No; the rest still open at the last print) — venues publish the official result, we record the market. The sample is the daily top-10 by turnover, so it leans towards the closest, most traded contests. Deciles with fewer than 20 contracts are folded into one row.

Other venues

KBO markets on other prediction venues

Polymarket, predict.fun also list KBO event markets — the same 30-day statistics side by side, each a day bundle of its own.

Venue · seriesTrades (30d)Turnover (30d)Avg spreadTop-1 depthL2 updates / tradeDays archivedPrice / day
Kalshi · KBO First Inning Run (this page)6,446$93.8K12.2 ¢$297.1188.1167€1
Polymarket · KBO Baseball (games & props)5,791$377.6K13.6 ¢$930.582613.5250€1
predict.fun · KBO Baseball (games & props)1,159$51.3K10.8 ¢$1.0K553.425€1

30-day window of the statistics table, per venue's own series; spread in contract-price cents and best-bid/ask depth are turnover-weighted, L2 updates per trade = recorded order-book level updates ÷ trades. "—" = no statistics row in the window. Each venue settles its own contracts on its own rules — the series are comparable in subject, not interchangeable.

When it trades

KBO First Inning Run — activity by weekday and hour

Fridays carry the most turnover, about $5.8K per day. Contracts listed to settle 05:00–05:59 UTC take 43 % of the turnover of the most traded contracts.

Weekday (UTC)Avg turnover / dayUSDAvg tradesDays
Monday$3.7K201.65
Tuesday$3.6K2784
Wednesday$4.2K3513
Thursday$624.279.54
Friday$5.8K286.754
Saturday$2.1K249.673
Sunday$3.2K211.85

Kalshi KBO First Inning Run — average USD turnover and trades per weekday over the captured days of the last 30, from our own daily statistics; weekdays without a captured day show —.

By UTC hour the contract is listed to settle (newest 30 captured days, most traded contracts per day)
Settles (UTC)TurnoverUSDShareTradesContracts
05:00–05:59$40.4K43.1 %2,21323
08:00–08:59$7.4K7.8 %5383
09:00–09:59$31.2K33.2 %2,70628
10:00–10:59$14.9K15.9 %9887

Kalshi KBO First Inning Run — USD turnover and trades of the most traded contracts per day, grouped by the UTC hour in which the contract is listed to settle (the venue's close time), over the newest 30 captured days; from our tick archive.

Daily statistics

KBO First Inning Run — last 30 days in the archive

Files, size, contracts traded, trades, USD turnover, buy share, quoted spread, top-of-book depth and order-book updates per UTC day, from the recorded tick data.

UTC dayFilesSizeTradedTradesTurnoverBuy shareAvg spreadTop-1 depthL2 updatesNotes
2026-11-02282.6 KB11$0.99100 %78.1 ¢$6.592.8KBuy day →
2026-11-0122.36 KB00$0———0Buy day →
2026-10-3011.32 MB1485$3.7K46 %34.6 ¢$114.4853.8KBuy day →
2026-10-2921.23 MB1283$2.3K40 %31.0 ¢$26.1850.1KBuy day →
2026-10-282186 KB115$41.4263 %15.6 ¢$3.367.1KBuy day →
2026-10-2733.28 MB2192$1.5K40 %5.91 ¢$78.79138.1KBuy day →
2026-10-2632.03 MB3102$1.5K53 %15.7 ¢$89.4483.1KBuy day →
2026-10-253177 KB2124$1.4K39 %58.6 ¢$33.446.3KBuy day →
2026-10-24227.1 KB15$10.5496 %71.2 ¢$34.55921Buy day →
2026-10-2323.08 KB00$0———4Buy day →
2026-10-2211.45 KB00$0———7Buy day →
2026-10-2011.20 MB1471$7.0K64 %13.5 ¢$87.5349.3KBuy day →
2026-10-191251 KB110$45.8389 %6.27 ¢$31.2610.1KBuy day →
2026-10-182639 KB1217$2.6K64 %11.0 ¢$310.5226.1KBuy day →
2026-10-173937 KB2285$2.6K38 %6.46 ¢$151.6337.9KBuy day →
2026-10-16231.3 KB00$0———1.0KBuy day →
2026-10-1523.46 KB00$0———20Buy day →
2026-10-142472 KB1285$4.0K38 %11.6 ¢$204.6918.6KBuy day →
2026-10-131470 KB14$5.0894 %69.0 ¢$18.5219.3KBuy day →
2026-10-1241.32 MB3513$9.8K44 %5.87 ¢$609.1352.9KBuy day →
2026-10-115884 KB5263$3.1K65 %7.34 ¢$737.735.4KBuy day →
2026-10-1081.32 MB4459$3.7K55 %11.4 ¢$152.4654.6KBuy day →
2026-10-09111.11 MB3662$19.6K34 %12.9 ¢$397.0543.7KBuy day →
2026-10-0881.17 MB235$179.581 %45.0 ¢$39.3748.6KBuy day →
2026-10-07115.92 MB5753$8.6K48 %6.10 ¢$178.26253.5KBuy day →
2026-10-06132.56 MB8445$6.0K71 %10.4 ¢$221.65108.6KBuy day →
2026-10-0515656 KB6382$7.2K54 %10.2 ¢$343.5424.4KBuy day →
2026-10-04202.04 MB7455$8.9K56 %8.07 ¢$283.3485.9KBuy day →
2026-10-03201.04 MB7444$5.3K57 %9.85 ¢$487.6541.6KBuy day →
2026-10-0215434 KB423$400.5194 %38.9 ¢$48.6715.6KBuy day →

Traded = contracts with at least one trade that day. Buy share = taker-buy side of USD turnover. Avg spread = quoted bid-ask spread in contract price cents (0..1 = 100 ¢), weighted by turnover across the day’s contracts. Top-1 depth = mean of the best bid and best ask notional in USD, weighted by turnover. L2 updates = order-book level updates recorded across all contracts of the day. Days captured before the extended statistics show —.

Contracts

Most traded KBO First Inning Run contracts by day

The ten contracts with the most USD turnover per UTC day — open, high, low, close, VWAP and the outcome implied by the last print; the six previous days fold out below.

The 1 most traded KBO First Inning Run contracts on 2026-11-02 — 0 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 1 still open at the last print: 1 trades, $0.99 USD turnover. The busiest contract was KXKBORFI-26NOV040430SAMKTW-Y with $0.99 turnover.

ContractOpenHighLowCloseVWAPImplied outcomeTradesTurnoverBuy shareSpreadTop-1 depthL2 updates
KXKBORFI-26NOV040430SAMKTW-Y SAMKTW · 2026-11-04 09:30 UTC · Y0.9500.9500.9500.9500.950open1$0.99100 %78.1 ¢$6.592.7Kbuy file →

Prices quote 0..1 (probability of Yes). Open/high/low/close/VWAP are that UTC day’s trade prints per contract; the implied outcome reads the last print — ≥ 0.97 as Yes, ≤ 0.03 as No, anything between as still open — venues publish the official result. Buy share = taker-buy side of turnover; spread = the contract's turnover-weighted quoted bid-ask spread in cents, top-1 depth = mean best-bid/ask notional per side, L2 updates = order-book level updates recorded for the contract that day. “Settles” is the venue-listed close time of the contract where the venue publishes one (UTC).

2026-10-30 — 1 contract, 485 trades, $3.7K turnover

The 1 most traded KBO First Inning Run contracts on 2026-10-30 — 0 closed Yes (≥ 0.97), 1 closed No (≤ 0.03): 485 trades, $3.7K USD turnover. The busiest contract was KXKBORFI-26OCT300530SAMKIA-Y with $3.7K turnover.

ContractSettles (UTC)OpenHighLowCloseVWAPImplied outcomeTradesTurnoverBuy shareSpreadTop-1 depthL2 updates
KXKBORFI-26OCT300530SAMKIA-Y SAMKIA · 2026-10-30 09:30 UTC · Y2026-10-30 09:510.4500.9400.0100.0100.367No485$3.7K46 %34.6 ¢$114.4853.8Kbuy file →
2026-10-29 — 1 contract, 283 trades, $2.3K turnover

The 1 most traded KBO First Inning Run contracts on 2026-10-29 — 1 closed Yes (≥ 0.97), 0 closed No (≤ 0.03): 283 trades, $2.3K USD turnover. The busiest contract was KXKBORFI-26OCT280530SAMKIA-Y with $2.3K turnover.

ContractSettles (UTC)OpenHighLowCloseVWAPImplied outcomeTradesTurnoverBuy shareSpreadTop-1 depthL2 updates
KXKBORFI-26OCT280530SAMKIA-Y SAMKIA · 2026-10-28 09:30 UTC · Y2026-10-29 09:510.5600.9900.0600.9900.517Yes283$2.3K40 %31.0 ¢$26.1850.0Kbuy file →
2026-10-28 — 1 contract, 15 trades, $41.42 turnover

The 1 most traded KBO First Inning Run contracts on 2026-10-28 — 0 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 1 still open at the last print: 15 trades, $41.42 USD turnover. The busiest contract was KXKBORFI-26OCT280530SAMKIA-Y with $41.42 turnover.

ContractSettles (UTC)OpenHighLowCloseVWAPImplied outcomeTradesTurnoverBuy shareSpreadTop-1 depthL2 updates
KXKBORFI-26OCT280530SAMKIA-Y SAMKIA · 2026-10-28 09:30 UTC · Y2026-10-29 09:510.4700.5600.2500.5600.445open15$41.4263 %15.6 ¢$3.367.1Kbuy file →
2026-10-27 — 2 contracts, 192 trades, $1.5K turnover

The 2 most traded KBO First Inning Run contracts on 2026-10-27 — 0 closed Yes (≥ 0.97), 1 closed No (≤ 0.03), 1 still open at the last print: 192 trades, $1.5K USD turnover. The busiest contract was KXKBORFI-26OCT260530KIASAM-Y with $1.5K turnover.

ContractSettles (UTC)OpenHighLowCloseVWAPImplied outcomeTradesTurnoverBuy shareSpreadTop-1 depthL2 updates
KXKBORFI-26OCT260530KIASAM-Y KIASAM · 2026-10-26 09:30 UTC · Y2026-10-27 09:500.5400.5400.0100.0100.331No188$1.5K40 %5.86 ¢$79.0340.0Kbuy file →
KXKBORFI-26OCT280530SAMKIA-Y SAMKIA · 2026-10-28 09:30 UTC · Y2026-10-29 09:510.2700.4700.2700.4700.462open4$4.79100 %22.9 ¢$5.6298.1Kbuy file →
2026-10-26 — 3 contracts, 102 trades, $1.5K turnover

The 3 most traded KBO First Inning Run contracts on 2026-10-26 — 1 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 2 still open at the last print: 102 trades, $1.5K USD turnover. The busiest contract was KXKBORFI-26OCT260530KIASAM-Y with $1.5K turnover.

ContractSettles (UTC)OpenHighLowCloseVWAPImplied outcomeTradesTurnoverBuy shareSpreadTop-1 depthL2 updates
KXKBORFI-26OCT260530KIASAM-Y KIASAM · 2026-10-26 09:30 UTC · Y2026-10-27 09:500.4400.8900.1600.5400.549open99$1.5K53 %15.6 ¢$88.8931.7Kbuy file →
KXKBORFI-26OCT250100KIASAM-Y KIASAM · 2026-10-25 05:00 UTC · Y2026-10-26 09:550.8100.9900.8100.9900.985Yes2$1.97100 %85.3 ¢$506.91134buy file →
KXKBORFI-26OCT280530SAMKIA-Y SAMKIA · 2026-10-28 09:30 UTC · Y2026-10-29 09:510.8500.8500.2700.2700.270open1$0.010 %38.5 ¢$6.6351.3Kbuy file →
2026-10-25 — 2 contracts, 124 trades, $1.4K turnover

The 2 most traded KBO First Inning Run contracts on 2026-10-25 — 0 closed Yes (≥ 0.97), 0 closed No (≤ 0.03), 2 still open at the last print: 124 trades, $1.4K USD turnover. The busiest contract was KXKBORFI-26OCT250100KIASAM-Y with $871.27 turnover.

ContractSettles (UTC)OpenHighLowCloseVWAPImplied outcomeTradesTurnoverBuy shareSpreadTop-1 depthL2 updates
KXKBORFI-26OCT250100KIASAM-Y KIASAM · 2026-10-25 05:00 UTC · Y2026-10-26 09:550.4600.8200.0600.8100.430open80$871.278 %56.8 ¢$48.042.3Kbuy file →
KXKBORFI-26OCT280530SAMKIA-Y SAMKIA · 2026-10-28 09:30 UTC · Y2026-10-29 09:510.0200.8800.0200.8500.497open44$577.9487 %61.2 ¢$11.424.0Kbuy file →
Market types

KBO on Kalshi — market types across the series

Across 5 KBO series on Kalshi, 6,901 contracts have been listed as of 2026-11-03: spread / handicap 2,356 · total / over-under 2,356 · moneyline / winner 1,590 · other 599. Counted from every contract file of the family, not from the traded top-10.

Market typeContracts listed (all time)Listed last 30 daysShare
spread / handicap2,35615634 %
total / over-under2,35615634 %
moneyline / winner1,5907823 %
other599399 %
Total6,901429100 %

Kalshi KBO series— market type read from each contract's venue identifier (ticker suffix on Kalshi, slug suffix on Polymarket, market description on predict.fun and OG.com), counted over every contract listed in the family as of 2026-11-03; “listed last 30 days” counts contracts whose venue settlement time falls in that window. Every one of them is in the day bundle of its day.

Contract anatomy

How a KBO First Inning Run contract trades

Listed ahead
14 min
Tick size
0.01
Contracts measured
1
Quoted in
USD

On Kalshi, a KBO First Inning Run contract trades until its event settles, is listed roughly 14 min before it opens, and quotes in 1 ¢ price steps (0..1). Measured on the 1 contracts captured on 2026-11-02.

Free sample

Try a KBO First Inning Run contract file for free

The busiest contract of a settled day, byte-identical to the files in the paid bundle — download the native tick file, a CSV/Parquet export, or replay its order book in the browser.

KXKBORFI-26OCT260530KIASAM-Y2026-10-27 (UTC) · 995 KB · 188 trades · $1.5K turnover · 0.540 → 0.010Full tick file: every trade print and Level-2 order-book update of the contract on that day, zstd-compressed JSON lines — no account needed.
Replay
Intraday profile

KXKBORFI-26OCT260530KIASAM-Y minute by minute — 2026-10-27

One-minute open/high/low/close, trades, USD turnover, quoted spread and top-of-book depth of the sample contract — the same 1-minute statistics every instrument’s analytics page offers.

KXKBORFI-26OCT260530KIASAM-Y traded in 59 of the day’s minutes (01:58–09:44 UTC): 188 trades, $1.5K turnover, opening at 0.540, ranging 0.010–0.520 and closing at 0.010.

0.00.51.001:58 UTC09:44 UTC
Minute (UTC)OpenHighLowCloseTradesTurnoverSpreadTop-1 bid / ask
01:580.5400.5000.5000.5001$3.881.00 ¢$97.6 / $382.99
02:420.5000.5100.5100.5101$4.831.00 ¢$94.13 / $397.33
03:280.5100.5000.5000.5001$9.621.00 ¢$92.72 / $138.49
03:350.5000.5000.5000.5001$48.311.00 ¢$73.54 / $113.22
03:380.5000.5000.4700.4702$75.812.16 ¢$22.84 / $94.52
03:570.4700.5000.5000.5002$5.434.00 ¢$1.38 / $68.71
04:280.5000.4600.4300.4303$32.385.52 ¢$45.39 / $66.27
04:340.4300.4500.4500.4501$1.594.00 ¢$4.39 / $55.34
04:460.4500.4500.4400.4402$26.684.73 ¢$44.37 / $26.04
05:030.4400.4900.4700.4904$24.125.69 ¢$126.55 / $17.6
05:060.4900.4400.4300.4302$7.492.90 ¢$47.14 / $4.82
05:110.4300.4300.4200.4204$51.324.18 ¢$18.31 / $30.59
05:140.4200.4200.4100.4105$59.244.68 ¢$96.46 / $1.98
05:160.4100.4100.4100.4101$1.355.00 ¢$113.01 / $0.75
05:210.4100.4700.4600.4703$1.975.20 ¢$83.4 / $15.05
05:240.4700.4700.4700.4702$5.636.00 ¢$112.37 / $72.53
05:320.4700.4100.4100.4101$3.766.00 ¢$110.63 / $72.41
05:340.4100.4700.4700.4701$4.826.42 ¢$108.61 / $89.25
05:360.4700.4800.4800.4801$9.987.00 ¢$30.07 / $106.21
06:020.4800.3700.3700.3701$0.068.00 ¢$14.97 / $18.45
06:090.3700.3700.3700.3701$0.158.00 ¢$15.16 / $18.45
06:250.3700.3900.3700.3704$5.437.06 ¢$5.89 / $9.04
06:280.3700.4400.4400.4401$4.823.40 ¢$4.59 / $5.94
06:300.4400.4100.4100.4101$2.712.65 ¢$5.74 / $4.86
06:480.4100.4500.4400.4505$9.628.57 ¢$17.75 / $78.85
06:550.4500.4500.4500.4503$19.297.06 ¢$26.06 / $41.2
06:560.4500.4600.4500.4604$7.747.09 ¢$24.77 / $14.36
06:570.4600.4600.4600.4602$72.858.00 ¢$26.18 / $43.96
07:000.4600.3800.3800.3802$8.548.04 ¢$171.77 / $12.76
07:180.3800.3800.3400.3409$207.899.02 ¢$33.49 / $30.15
07:210.3400.4600.4600.4601$1.9315.0 ¢$1.24 / $207.27
07:350.4600.4700.4300.4706$144.619.01 ¢$69.15 / $15.35
07:360.4700.4700.4000.4004$7.627.08 ¢$32.51 / $48.09
07:370.4000.4600.4600.4603$48.188.30 ¢$74.67 / $23.66
07:520.4600.5200.5200.5202$9.365.12 ¢$38.9 / $9.25
07:590.5200.4500.3800.3808$185.3412.9 ¢$68.4 / $404.45
08:010.3800.3400.3400.3401$5.0319.0 ¢$38.67 / $423.94
08:090.3400.5000.4700.5007$88.117.86 ¢$120.29 / $31.95
08:140.5000.4300.4300.4302$3.664.76 ¢$25.36 / $11.89
08:150.4300.4800.4700.4805$19.394.62 ¢$15.97 / $22.85
08:310.4800.5100.5100.5101$4.835.00 ¢$3.22 / $201.47
08:400.5100.5100.5100.5103$48.345.44 ¢$3.23 / $156.71
08:450.5100.4600.4400.4403$4.474.72 ¢$15.19 / $152.08
08:490.4400.4400.4400.4404$29.84.19 ¢$18.26 / $81.36
08:530.4400.4400.4200.4203$2.195.96 ¢$26.1 / $31.51
09:000.4200.4200.4200.4202$6.755.98 ¢$39.81 / $29.86
09:030.4200.4200.4200.4201$3.525.00 ¢$31.53 / $8.46
09:070.4200.4600.4600.4603$4.825.75 ¢$30.16 / $6.5
09:080.4600.4600.4500.4607$42.394.75 ¢$13.3 / $16.25
09:100.4600.4500.4500.4503$19.264.53 ¢$50.57 / $19.74
09:180.4500.4100.3900.3904$35.047.37 ¢$28.59 / $60.72
09:300.3900.3600.3600.3602$11.469.01 ¢$85.45 / $73.08
09:320.3600.3700.3000.3004$23.9913.6 ¢$5.77 / $32.63
09:330.3000.3000.3000.3002$5.7119.0 ¢$1.92 / $33
09:370.3000.2100.1800.1803$1.2425.0 ¢$0.51 / $33
09:380.1800.1800.1800.1803$0.3426.0 ¢$0.26 / $33
09:390.1800.1800.1800.1801$0.0131.2 ¢$3.04 / $33
09:430.1800.0800.0800.0802$0.8735.7 ¢$4.41 / $33
09:440.0800.0900.0100.01027$29.4836.8 ¢$5.89 / $28.18

1-minute statistics computed from the recorded ticks; minutes without a trade are omitted. Spread in contract price cents; top-1 depth = resting notional at the best bid / best ask. Every minute of every day is in the free analytics; the raw ticks are in the sample file above.

Build a bot

Build a KBO First Inning Run model on this data

Every settled KBO First Inning Run contract is a labelled example: the winner, the line or the total that cleared is the label, and the day bundle holds each contract's full order-book path and trade tape, nanosecond-stamped, from the first quote days before the event to the last print — the features for that label. The statistics on this page cover the most traded contracts per day; the bundle holds every contract listed on Kalshi that day.

Contract-days traded since 2026-08-09
318
Turnover on game day, 226 contracts to 2026-11-02
98 %
Median days traded before settlement
1
Favourite hit rate (implied), 210 contracts
55 %
Market types, 2026-11-03
spread / handicap 2,356 · total / over-under 2,356 · moneyline / winner 1,590 · other 599

Split by season and match day, never at random — the contracts of one slate share injuries, weather and the same public money, and a random split leaks the slate's results into training; walk forward over game days and purge the days whose contracts were still open. The sports-model guide works the closing-line benchmark, the pre-game line path and that split through.

Purchased data is for your own use — backtesting, research, analytics and training your own models, in-house or in your own products; the trained models and derived data you build from it are yours. The raw files and tick streams themselves may not be redistributed, resold or published. The full terms are on the data license page.

Why CryptoStruct

Why buy Kalshi KBO First Inning Run data here

Four things every page on this site is built on — and the reason the numbers above exist at all.

We record everything

The complete public feed of each venue as it was published: every Level-2 snapshot and update at the venue's full book depth, every trade with its aggressor side, every quote, funding, mark-price and liquidation event — for every instrument the venue lists, every UTC day since we added the venue. Nothing sampled, no top-N cut, no on-demand capture.

Institutional grade

Captured co-located at the venue with the exchange timestamp and our receive timestamp in integer nanoseconds, an event-id chain that makes any gap visible, and one normalized schema across 35+ venues — the same capture our own high-frequency trading engine and enterprise feeds run on.

€1 per instrument-day

Any instrument-day is €1, series-day bundles start at €1 — no subscription, no minimum order, no tiers to unlock. Credit packs lower the effective price and never expire, and every venue has free full-day samples to test against first.

Self-service for everyone

Pick the days in the Data Shop, pay by card as a guest and download immediately — no sales call, no enterprise contract, no KYC. Coding agents buy the same files through the MCP server, and the free Agent Skill teaches them the format.

Agents: /llms.txt · MCP server /mcp · every page as markdown via Accept: text/markdown

FAQ

Kalshi KBO First Inning Run data — FAQ

What Kalshi KBO First Inning Run data can I download?

Tick-by-tick trades and Level-2 order-book depth for every contract of the KBO First Inning Run series on Kalshi (2 contract files on the latest day). One bundle = one UTC day of the whole series.

What is the Kalshi series ticker for KBO First Inning Run?

KXKBORFI — every contract of the series carries this prefix in its ticker (followed by the event date and strike). Files in a day bundle are named by the full contract ticker, so a bundle holds every KXKBORFI-* contract listed that UTC day.

How far back does the KBO First Inning Run data go?

Coverage runs May 2026 – present — 167 trading days in total.

What format are the Kalshi files in?

One zstd-compressed text file per contract per UTC day, in the same normalized schema as our crypto venues — see the market-data specification; free samples on the downloads page.

Can I get Kalshi KBO First Inning Run data as CSV or Parquet?

Yes — trades export as gzipped CSV or Parquet at no extra cost, with integer microsecond UTC timestamps that load straight into pandas, polars or DuckDB. Kalshi records full order-book depth without a separate BBO stream, so book data ships in the native tick file — the free reader script converts it locally. See the formats overview.

How much does Kalshi KBO First Inning Run historical data cost?

€1 per series-day bundle — every contract of the series for that day — no subscription, no minimum order; buy as a guest in the Data Shop and download immediately. Credit packs lower the effective price and never expire.

Do I need an account or a sales call?

No. Pick the KBO First Inning Run series-days in the Data Shop, pay by card as a guest and download immediately — no subscription, no minimum order, no KYC, no enterprise contract, no sales call. Coding agents buy the same bundles through the MCP server.

How is the Kalshi KBO First Inning Run data captured?

Co-located at the venue, message by message: every Level-2 update and every trade print carries the exchange timestamp and our receive timestamp in integer nanoseconds, an event-id chain makes any gap visible, and one normalized schema across 35+ venues means a parser written for Binance reads these files unchanged. It is the same capture our own high-frequency trading engine runs on — nothing sampled, no top-N cut.

How many KBO First Inning Run contracts trade per day on Kalshi?

On average 2 KBO First Inning Run contracts had at least one trade per UTC day over the last 28 captured days on Kalshi, with about 43.3K order-book level updates recorded per day. A day bundle contains every contract file of the series for that day.

How liquid are Kalshi KBO First Inning Run contracts?

Over the last 28 captured days, the turnover-weighted quoted bid-ask spread was 12.2 ¢ (contracts quote 0..1 = 100 ¢), the mean best-bid/best-ask notional was about $297.1 per side, 49 % of USD turnover was taker-buy. These figures are computed from the recorded Level-2 order books and trade prints — the same data in the day bundles.

What was the most traded KBO First Inning Run contract on 2026-11-02?

KXKBORFI-26NOV040430SAMKTW-Y (SAMKTW · 2026-11-04 09:30 UTC · Y) — $0.99 USD turnover over 1 trade on Kalshi. The 1 most traded contracts of the series did 1 trades and $0.99 that UTC day. Open, high, low, close and VWAP per contract are listed on this page; the tick-level data is in the day bundle.

Did the favourite win in KBO First Inning Run contracts?

Of 210 settled KBO First Inning Run contracts that opened away from 50 ¢ among the day's most traded contracts between 2026-08-10 and 2026-11-02 on Kalshi, the side the opening price favoured finished in the money 55 % of the time; the largest group, 109 contracts opening at 50–60 ¢, closed Yes 54 % of the time. Outcomes are implied from each contract's last recorded print (≥ 0.97 / ≤ 0.03), not the venue's official settlement, and the opening price is the first print on the first day the contract ranked among the ten most traded of the series; the opening-price table on this page lists every 10 ¢ step, and the tick data behind it is in the day bundles.

What was the busiest KBO First Inning Run trading day on Kalshi?

2026-10-09, with $19.6K of USD turnover over 662 trades across every KBO First Inning Run contract of the day; the busiest full month was Sep 2026 at $151.6K. Since our statistics began on 2026-08-09 the series has recorded 24,823 trades and $359.8K over 84 captured days; the single biggest contract was KXKBORFI-26OCT090100KIANCD-Y (KIANCD · 2026-10-09 05:00 UTC · Y) on 2026-10-09 with $12.6K. Any of these days is a downloadable bundle.

When do KBO First Inning Run contracts settle?

Contracts listed to settle between 05:00 and 05:59 UTC carried 43 % of the USD turnover of the most traded KBO First Inning Run contracts per day over the newest 30 captured days on Kalshi. The hour-by-hour profile on this page shows the whole day; every contract file carries nanosecond exchange timestamps, so any finer profile can be computed from the bundle.

Which market types does Kalshi list for KBO?

Kalshi lists each market type as its own series — 5 KBO series with 6,901 contracts listed as of 2026-11-03: spread / handicap 2,356 · total / over-under 2,356 · moneyline / winner 1,590 · other 599. KBO First Inning Run is one of them; a series-day bundle covers one series, so buy the same day across the sibling series you need in the shop.

Which weekday does Kalshi KBO First Inning Run trade most?

Fridays — about $5.8K of USD turnover per Friday and 25 % of the series' turnover over the 28 captured days to 2026-11-02 on Kalshi, summed from every trade print of the series' contracts. The weekday profile on this page shows all seven days; the day bundles carry the full tape behind them.

How much of KBO First Inning Run turnover trades on game day?

98 % — across 226 settled KBO First Inning Run contracts between 2026-08-10 and 2026-11-02 on Kalshi, 98 % of their USD turnover printed on the UTC day the contract settled and 2 % on the days before, summed from every trade of the most traded contracts per day. The pre-event share is where line-movement features live; the day bundles hold both.

How long before an event do KBO First Inning Run contracts trade?

A median of 1 captured trading day per contract, settlement day included — across 226 settled KBO First Inning Run contracts to 2026-11-02 on Kalshi, counting the UTC days a contract ranked among the series' most traded. Buy those days as a range (/shop/bundles?bundle=kalshi-kxkborfi&d=<from>..<to>) to get the whole pre-event path of each contract.

Topics

Topic hubs featuring this series