Esports Prediction Data — Kalshi & Polymarket
Tick-by-tick trades and L2 order-book depth for 22 Esports series on Kalshi & Polymarket — LoL games and map winners, CS2 games, maps and qualifiers, Dota 2 and Valorant matches. 4,051 series-days covering June 2025 – present; 7.5M trades · $482.2M turnover over the last 30 captured days. Every contract captured co-located with nanosecond venue and receive timestamps — sold as day bundles, €1 per day, bought as a guest with instant download.
Esports on Kalshi & Polymarket
League of Legends, Counter-Strike 2, Dota 2 and Valorant match, game and map winners.
Every series below is archived at full feed resolution — each contract file carries every trade print (price, size, side) and Level-2 order-book updates in one normalized, zstd-compressed schema. A series-day bundle holds all contracts of the series for one UTC day.
Most traded Esports series (last 30 days)
Ranked by USD turnover from our own daily statistics — the series a market maker or bot builder should start with.
| # | Series | Venue | Trades (30d) | Turnover (30d) | Days | |
|---|---|---|---|---|---|---|
| 1 | League of Legends esports | Polymarket | 1,049,440 | $181.3M | 30 | Buy days |
| 2 | Counter-Strike 2 esports | Polymarket | 1,141,013 | $130.0M | 30 | Buy days |
| 3 | Counter-Strike 2 Game | Kalshi | 1,894,851 | $42.3M | 30 | Buy days |
| 4 | Dota 2 esports | Polymarket | 318,521 | $39.6M | 30 | Buy days |
| 5 | League of Legends Game | Kalshi | 695,678 | $26.9M | 30 | Buy days |
| 6 | Counter-Strike 2 Map Winner | Kalshi | 667,341 | $17.9M | 30 | Buy days |
| 7 | League of Legends Map Winner | Kalshi | 619,150 | $17.7M | 30 | Buy days |
| 8 | Valorant game winner | Kalshi | 271,772 | $7.4M | 30 | Buy days |
| 9 | Valorant esports | Polymarket | 88,376 | $6.2M | 30 | Buy days |
| 10 | Dota 2 Game | Kalshi | 242,767 | $3.6M | 30 | Buy days |
Trades and USD turnover summed over every contract of the series, from the recorded tick data; 30 days to 2026-09-22. Series without statistics in the window are omitted.
Esports activity per venue
| Venue | Series | With stats | Trades (30d) | Turnover (30d) |
|---|---|---|---|---|
| Polymarket | 4 | 4 | 2,597,350 | $357.2M |
| Kalshi | 18 | 14 | 4,872,367 | $125.1M |
30 days to 2026-09-22, from our own daily statistics per contract.
Esports — development since capture
18,045,416 trades and $1.2B of USD turnover across 20 series since 2026-07-08; busiest single series-day 2026-08-23 with $19.0M, biggest contract TEAM-VISION-v-TEAM-SPIRIT-dota2-vsn2-ts8-2026-08-23 (2026-08-23, $6.8M).
| Month | Series active | Days | Trades | Turnover (USD) | Avg / day | Contracts traded | L2 updates | vs previous month |
|---|---|---|---|---|---|---|---|---|
| Sep 2026 (month to date) | 18 | 22 | 5,474,195 | $350.9M | $16.0M | 26,832 | 2.0B | — |
| Aug 2026 | 20 | 31 | 9,135,666 | $710.8M | $22.9M | 33,992 | 1.9B | — |
| Jul 2026 | 9 | 24 | 3,435,555 | $103.7M | $4.3M | — | — | — |
Esports series — 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.
Esports — turnover by weekday
Saturdays are the busiest day at about $24.7M of USD turnover, averaged over the captured days of the last 30.
| Weekday (UTC) | Avg turnover / day | USD | Avg trades | Days |
|---|---|---|---|---|
| Monday | $10.8M | 219.6K | 5 | |
| Tuesday | $11.5M | 240.3K | 5 | |
| Wednesday | $12.1M | 238.0K | 4 | |
| Thursday | $16.5M | 238.4K | 4 | |
| Friday | $17.8M | 253.5K | 4 | |
| Saturday | $24.7M | 282.3K | 4 | |
| Sunday | $21.6M | 280.5K | 4 |
Esports series — 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 —.
Rising Esports series — 30 days vs the 30 before
| # | Series | Venue | Turnover (30d) | Prior 30d | Growth (avg / day) | Trades (30d) |
|---|---|---|---|---|---|---|
| 1 | Counter-Strike 2 esports | Polymarket | $130.0M | $83.7M | +55.3 % | 1,141,013 |
| 2 | CS2 Tournament Winner | Kalshi | $237.4K | $111.7K | +9.9 % | 6,399 |
| 3 | League of Legends Total Maps | Kalshi | $1.7M | $852.2K | +2.3 % | 57,297 |
| 4 | Counter-Strike 2 Game | Kalshi | $42.3M | $41.6M | +1.6 % | 1,894,851 |
| 5 | Counter-Strike 2 Map Winner | Kalshi | $17.9M | $18.2M | −1.9 % | 667,341 |
Growth of average USD turnover per captured day, the 30 days to 2026-09-22 against the 30 days before; series need ≥ 10 captured days in both windows and ≥ $10K of turnover in the current one. From our own daily statistics.
Esports prediction markets — trades and turnover per day
Every captured UTC day of the last 30, summed over the 22 Esports series — how much these markets trade day by day, from our own tick capture.
| UTC day | Series with stats | Contracts traded | Trades | Turnover | Buy share | L2 updates |
|---|---|---|---|---|---|---|
| 2026-09-22 | 15 | 1,507 | 299,840 | $14.5M | 54 % | 150.9M |
| 2026-09-21 | 16 | 1,035 | 251,646 | $14.4M | 52 % | 100.5M |
| 2026-09-20 | 17 | 1,081 | 224,484 | $17.7M | 52 % | 89.7M |
| 2026-09-19 | 17 | 1,169 | 254,857 | $22.9M | 51 % | 67.4M |
| 2026-09-18 | 17 | 1,555 | 242,740 | $16.3M | 53 % | 80.2M |
| 2026-09-17 | 17 | 1,125 | 209,248 | $15.8M | 52 % | 85.5M |
| 2026-09-16 | 17 | 894 | 163,899 | $4.3M | 59 % | 90.8M |
| 2026-09-15 | 17 | 896 | 195,203 | $7.1M | 55 % | 91.6M |
| 2026-09-14 | 17 | 975 | 220,971 | $7.0M | 55 % | 81.0M |
| 2026-09-13 | 17 | 1,183 | 264,922 | $20.6M | 51 % | 108.5M |
| 2026-09-12 | 17 | 1,229 | 257,470 | $26.2M | 50 % | 93.1M |
| 2026-09-11 | 17 | 1,305 | 267,738 | $14.4M | 53 % | 91.9M |
| 2026-09-10 | 17 | 1,483 | 330,157 | $18.9M | 53 % | 145.9M |
| 2026-09-09 | 17 | 1,690 | 276,757 | $13.2M | 54 % | 125.2M |
| 2026-09-08 | 16 | 1,216 | 265,949 | $17.2M | 50 % | 80.7M |
| 2026-09-07 | 16 | 1,034 | 167,179 | $7.2M | 57 % | 89.0M |
| 2026-09-06 | 16 | 1,396 | 296,719 | $25.0M | 51 % | 99.6M |
| 2026-09-05 | 16 | 1,272 | 278,107 | $25.2M | 52 % | 75.7M |
| 2026-09-04 | 16 | 1,118 | 248,642 | $18.7M | 53 % | 68.6M |
| 2026-09-03 | 16 | 1,189 | 241,811 | $15.7M | 56 % | 64.8M |
| 2026-09-02 | 16 | 1,430 | 286,012 | $17.1M | 53 % | 81.5M |
| 2026-09-01 | 16 | 1,050 | 229,844 | $11.6M | 56 % | 64.5M |
| 2026-08-31 | 16 | 1,130 | 226,473 | $13.5M | 55 % | 62.6M |
| 2026-08-30 | 15 | 1,783 | 335,695 | $23.1M | 56 % | 99.9M |
| 2026-08-29 | 15 | 1,786 | 338,659 | $24.5M | 53 % | 108.3M |
| 2026-08-28 | 15 | 1,781 | 254,781 | $21.8M | 49 % | 88.4M |
| 2026-08-27 | 15 | 1,550 | 172,347 | $15.7M | 51 % | 64.3M |
| 2026-08-26 | 15 | 1,563 | 225,325 | $14.0M | 53 % | 90.8M |
| 2026-08-25 | 15 | 1,489 | 210,530 | $7.0M | 58 % | 103.3M |
| 2026-08-24 | 15 | 1,066 | 231,712 | $11.7M | 56 % | 80.1M |
Per UTC day, summed over every Esports series that has statistics for that day, from every trade print of every contract in our tick archive. Trades and USD turnover are exact; contracts traded, buy share and L2 (order-book) updates exist for days captured with the extended statistics — earlier days show —.
Most traded Esports contracts on 2026-09-22
The single event contracts with the most USD turnover on the newest captured day — with open and close price and the outcome implied by the last print.
| Contract | Series | Venue | Open → Close | Implied outcome | Trades | Turnover | |
|---|---|---|---|---|---|---|---|
| dota2-navi-1win-2026-09-22 | Dota 2 esports | Polymarket | 0.560 → 0.999 | Yes | 2,342 | $778.0K | buy file → |
| dota2-navi-1win-2026-09-22-game2 | Dota 2 esports | Polymarket | 0.530 → 0.999 | Yes | 1,538 | $540.0K | buy file → |
| cs2-ice-3dmax-2026-09-22 | Counter-Strike 2 esports | Polymarket | 0.610 → 0.001 | No | 1,620 | $518.8K | buy file → |
| dota2-lgd-aur1-2026-09-22-game1 | Dota 2 esports | Polymarket | 0.420 → 0.001 | No | 2,162 | $496.9K | buy file → |
| dota2-pi-tc4-2026-09-22 | Dota 2 esports | Polymarket | 0.750 → 0.999 | Yes | 1,491 | $387.5K | buy file → |
| cs2-b8-lg6-2026-09-22 | Counter-Strike 2 esports | Polymarket | 0.590 → 0.001 | No | 1,738 | $348.9K | buy file → |
| dota2-cs-yb1-2026-09-22-game2 | Dota 2 esports | Polymarket | 0.660 → 0.999 | Yes | 966 | $314.7K | buy file → |
| dota2-nem-gl-2026-09-22-game1 | Dota 2 esports | Polymarket | 0.430 → 0.999 | Yes | 888 | $285.9K | buy file → |
| dota2-pi-tc4-2026-09-22-game2 | Dota 2 esports | Polymarket | 0.680 → 0.001 | No | 1,261 | $280.8K | buy file → |
| dota2-lgd-aur1-2026-09-22-game2 | Dota 2 esports | Polymarket | 0.420 → 0.001 | No | 1,689 | $247.4K | buy file → |
Single contracts ranked by USD turnover on 2026-09-22 (UTC), from every trade print in our tick archive. Prices quote 0..1; the implied outcome reads the last print of the day (≥ 0.97 Yes/Up, ≤ 0.03 No/Down) — venues publish the official result. Each contract’s day file is sold individually, the whole series day as a bundle.
Kalshi Esports series
Largest archive first. Each series page lists its exact coverage, day count and recent days; day bundles are bought in the shop calendar.
| Series | Venue | Interval | Days | Coverage | Size | Price/day | |
|---|---|---|---|---|---|---|---|
| Counter-Strike 2 Game | Kalshi | event | 209 | February 2026 – present | 43.5 GB | €1 | Buy days |
| Counter-Strike 2 Map Winner | Kalshi | daily | 203 | March 2026 – present | 20.6 GB | €1 | Buy days |
| League of Legends Game | Kalshi | event | 206 | February 2026 – present | 16.2 GB | €1 | Buy days |
| Valorant game winner | Kalshi | event | 209 | February 2026 – present | 11.1 GB | €1 | Buy days |
| League of Legends Map Winner | Kalshi | event | 200 | March 2026 – present | 10.9 GB | €1 | Buy days |
| Valorant Map Winner | Kalshi | event | 203 | March 2026 – present | 7.41 GB | €1 | Buy days |
| Dota 2 Game | Kalshi | event | 190 | February 2026 – present | 7.33 GB | €1 | Buy days |
| Dota 2 Map Winner | Kalshi | event | 181 | March 2026 – present | 3.98 GB | €1 | Buy days |
| R6 Game | Kalshi | event | 129 | March 2026 – present | 3.06 GB | €1 | Buy days |
| League of Legends Total Maps | Kalshi | event | 200 | March 2026 – present | 1.92 GB | €1 | Buy days |
| CS2 Total Maps | Kalshi | event | 203 | March 2026 – present | 1.63 GB | €1 | Buy days |
| Call of Duty Games | Kalshi | event | 108 | February 2026 – August 2026 | 1.34 GB | €1 | Buy days |
| Overwatch Game | Kalshi | event | 98 | March 2026 – present | 521 MB | €1 | Buy days |
| COD Map Winner | Kalshi | event | 73 | April 2026 – August 2026 | 438 MB | €1 | Buy days |
| Rocket League Game | Kalshi | event | 20 | May 2026 – present | 383 MB | €1 | Buy days |
| CS2 Tournament Winner | Kalshi | event | 128 | April 2026 – present | 316 MB | €1 | Buy days |
| Fifa Game | Kalshi | event | 21 | March 2026 – April 2026 | 160 MB | €1 | Buy days |
| CS2 Qualifier | Kalshi | event | 20 | June 2026 | 17.4 MB | €1 | Buy days |
Polymarket Esports series
Largest archive first. Each series page lists its exact coverage, day count and recent days; day bundles are bought in the shop calendar.
| Series | Venue | Interval | Days | Coverage | Size | Price/day | |
|---|---|---|---|---|---|---|---|
| League of Legends esports | Polymarket | event | 375 | September 2025 – present | 82.5 GB | €1 | Buy days |
| Counter-Strike 2 esports | Polymarket | event | 369 | June 2025 – present | 80.6 GB | €1 | Buy days |
| Valorant esports | Polymarket | event | 334 | October 2025 – present | 33.2 GB | €1 | Buy days |
| Dota 2 esports | Polymarket | event | 372 | September 2025 – present | 25.8 GB | €1 | Buy days |
Why buy Esports prediction-market 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.
Esports prediction-market data — FAQ
Does Kalshi have League of Legends markets?
Yes — LoL game winners and map winners, Counter-Strike 2 games, map winners and qualifiers, and Valorant map winners. Polymarket League of Legends, CS2, Dota 2 and Valorant matches each form a family (Polymarket LoL is one of its most-traded sports families).
How is esports prediction-market data sold?
One purchase covers every contract of the series for one UTC day — every trade print and the complete Level-2 book per contract, captured co-located with nanosecond timestamps — €1 per series-day, bought as a guest with instant download.
How far back does the Esports data go?
Coverage runs June 2025 – present — 4,051 series-days across 22 series on Kalshi & Polymarket. Each series page lists its exact span.
Can I get Esports prediction-market 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. Both venues record 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 Esports prediction-market data cost?
€1 per series-day bundle — every contract of the series for that UTC day — no subscription, no minimum order. Pick days in the shop calendar, pay as a guest, download immediately.
Do I need an account or a sales call?
No. Pick the Esports 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 Esports 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.
What was the busiest Esports trading day?
2026-08-23 — $19.0M of USD turnover over 39,559 trades in a single series-day. Since our statistics began on 2026-07-08, 20 Esports series recorded 18,045,416 trades and $1.2B in total; the biggest single contract was TEAM-VISION-v-TEAM-SPIRIT-dota2-vsn2-ts8-2026-08-23 on 2026-08-23 at $6.8M. Saturdays are the busiest weekday at about $24.7M per day.