MLS & US Soccer Prediction Market Data
Tick-by-tick trades and L2 order-book depth for 42 MLS & US Soccer series on Kalshi & Polymarket & predict.fun — MLS games, spreads, totals and correct scores, Leagues Cup, USL Championship, NWSL. 4,957 series-days covering May 2025 – present; 3.0M trades · $104.2M 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.
MLS & US Soccer on Kalshi & Polymarket & predict.fun
MLS, Leagues Cup, USL Championship and NWSL markets.
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 MLS & US Soccer 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 | Major League Soccer Game | Kalshi | 1,445,084 | $48.9M | 30 | Buy days |
| 2 | MLS Soccer | Polymarket | 177,244 | $17.9M | 30 | Buy days |
| 3 | MLS Total | Kalshi | 363,997 | $16.5M | 30 | Buy days |
| 4 | MLS BTTS | Kalshi | 58,872 | $3.1M | 30 | Buy days |
| 5 | USL Championship Game | Kalshi | 257,675 | $2.7M | 30 | Buy days |
| 6 | MLS Spread | Kalshi | 110,416 | $2.7M | 30 | Buy days |
| 7 | 1st Half Total (KXMLS1HTOTAL) | Kalshi | 65,013 | $2.6M | 29 | Buy days |
| 8 | 1st Half Winner (KXMLS1H) | Kalshi | 49,726 | $1.6M | 29 | Buy days |
| 9 | Canadian Premier League | Kalshi | 64,049 | $1.4M | 24 | Buy days |
| 10 | MLS Soccer | predict.fun | 28,722 | $1.3M | 25 | Buy days |
Trades and USD turnover summed over every contract of the series, from the recorded tick data; 30 days to 2026-11-02. Series without statistics in the window are omitted.
MLS & US Soccer activity per venue
| Venue | Series | With stats | Trades (30d) | Turnover (30d) |
|---|---|---|---|---|
| Kalshi | 37 | 27 | 2,789,168 | $84.4M |
| Polymarket | 4 | 4 | 198,664 | $18.5M |
| predict.fun | 1 | 1 | 28,722 | $1.3M |
30 days to 2026-11-02, from our own daily statistics per contract.
MLS & US Soccer — development since capture
11,918,406 trades and $417.6M of USD turnover across 42 series since 2026-07-08; busiest single series-day 2026-07-23 with $11.3M, biggest contract KXMLSGAME-26NOV01NEMIA-MIA (2026-11-02, $2.2M).
| Month | Series active | Days | Trades | Turnover (USD) | Avg / day | Contracts traded | L2 updates | vs previous month |
|---|---|---|---|---|---|---|---|---|
| Nov 2026 (month to date) | 30 | 2 | 391,657 | $15.9M | $7.9M | 2,343 | 60.1M | — |
| Oct 2026 | 32 | 31 | 2,831,368 | $93.5M | $3.0M | 28,235 | 689.4M | +20.9 % |
| Sep 2026 | 39 | 30 | 2,370,763 | $77.4M | $2.6M | 27,369 | 696.4M | −58.3 % |
| Aug 2026 | 35 | 31 | 5,278,629 | $185.6M | $6.0M | 32,598 | 834.5M | +311.0 % |
| Jul 2026 | 20 | 24 | 1,045,989 | $45.2M | $1.9M | — | — | — |
MLS & US Soccer 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.
MLS & US Soccer — turnover by weekday
Sundays are the busiest day at about $6.8M of USD turnover, averaged over the captured days of the last 30.
| Weekday (UTC) | Avg turnover / day | USD | Avg trades | Days |
|---|---|---|---|---|
| Monday | $2.4M | 64.5K | 5 | |
| Tuesday | $91.2K | 1.9K | 4 | |
| Wednesday | $2.5M | 49.2K | 4 | |
| Thursday | $6.3M | 192.8K | 4 | |
| Friday | $79.4K | 4.9K | 4 | |
| Saturday | $5.4M | 148.8K | 4 | |
| Sunday | $6.8M | 220.8K | 5 |
MLS & US Soccer 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 MLS & US Soccer series — 30 days vs the 30 before
| # | Series | Venue | Turnover (30d) | Prior 30d | Growth (avg / day) | Trades (30d) |
|---|---|---|---|---|---|---|
| 1 | 1st Half Spread (KXMLS1HSPREAD) | Kalshi | $177.8K | $22.9K | +194.3 % | 10,547 |
| 2 | Team Total (KXMLSTEAMTOTAL) | Kalshi | $862.7K | $342.1K | +134.8 % | 32,119 |
| 3 | Correct Score (KXMLSSCORE) | Kalshi | $657.2K | $302.4K | +109.9 % | 63,528 |
| 4 | MLS Spread | Kalshi | $2.7M | $1.4M | +95.6 % | 110,416 |
| 5 | 1st Half Correct Score (KXMLS1HSCORE) | Kalshi | $199.8K | $100.1K | +92.7 % | 10,726 |
Growth of average USD turnover per captured day, the 30 days to 2026-11-02 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.
MLS & US Soccer prediction markets — trades and turnover per day
Every captured UTC day of the last 30, summed over the 42 MLS & US Soccer 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 |
|---|---|---|---|---|---|---|
| 2026-11-02 | 29 | 879 | 214,748 | $9.0M | 62 % | 27.4M |
| 2026-11-01 | 30 | 1,464 | 176,909 | $6.9M | 63 % | 32.7M |
| 2026-10-31 | 30 | 1,718 | 183,010 | $5.4M | 66 % | 33.6M |
| 2026-10-30 | 27 | 419 | 9,592 | $117.1K | 80 % | 8.4M |
| 2026-10-29 | 29 | 2,102 | 314,295 | $9.3M | 63 % | 52.9M |
| 2026-10-28 | 27 | 1,559 | 32,291 | $2.2M | 64 % | 22.1M |
| 2026-10-27 | 23 | 318 | 1,363 | $25.2K | 75 % | 9.4M |
| 2026-10-26 | 25 | 466 | 68,431 | $2.0M | 59 % | 13.6M |
| 2026-10-25 | 30 | 2,282 | 251,457 | $7.5M | 60 % | 56.4M |
| 2026-10-24 | 30 | 1,991 | 167,140 | $7.1M | 67 % | 38.1M |
| 2026-10-23 | 28 | 431 | 3,152 | $77.6K | 73 % | 10.0M |
| 2026-10-22 | 28 | 398 | 40,693 | $2.0M | 32 % | 10.8M |
| 2026-10-21 | 29 | 427 | 43,104 | $1.3M | 62 % | 12.3M |
| 2026-10-20 | 26 | 152 | 1,007 | $38.9K | 67 % | 5.1M |
| 2026-10-19 | 25 | 152 | 6,725 | $79.7K | 71 % | 6.0M |
| 2026-10-18 | 29 | 2,234 | 323,048 | $11.0M | 60 % | 50.3M |
| 2026-10-17 | 30 | 1,394 | 136,650 | $5.1M | 66 % | 21.5M |
| 2026-10-16 | 28 | 370 | 3,285 | $68.0K | 81 % | 8.0M |
| 2026-10-15 | 28 | 2,314 | 413,791 | $14.0M | 61 % | 68.4M |
| 2026-10-14 | 28 | 1,549 | 55,136 | $4.3M | 62 % | 31.2M |
| 2026-10-13 | 28 | 424 | 2,299 | $80.2K | 78 % | 13.3M |
| 2026-10-12 | 25 | 312 | 20,633 | $794.6K | 60 % | 10.8M |
| 2026-10-11 | 27 | 1,817 | 258,876 | $7.7M | 62 % | 47.5M |
| 2026-10-10 | 27 | 1,657 | 108,561 | $4.1M | 67 % | 33.2M |
| 2026-10-09 | 27 | 451 | 3,579 | $54.9K | 69 % | 13.4M |
| 2026-10-08 | 24 | 216 | 2,454 | $52.7K | 67 % | 9.9M |
| 2026-10-07 | 24 | 329 | 66,203 | $2.3M | 60 % | 18.0M |
| 2026-10-06 | 22 | 271 | 2,899 | $220.4K | 52 % | 12.5M |
| 2026-10-05 | 26 | 209 | 11,725 | $183.4K | 64 % | 9.4M |
| 2026-10-04 | 22 | 621 | 93,498 | $1.2M | 67 % | 19.7M |
Per UTC day, summed over every MLS & US Soccer 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 MLS & US Soccer contracts on 2026-11-02
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 | |
|---|---|---|---|---|---|---|---|
| KXMLSGAME-26NOV01NEMIA-MIA | Major League Soccer Game | Kalshi | 0.450 → 0.990 | Yes | 31,813 | $2.2M | buy file → |
| KXMLSGAME-26NOV01PORHOU-POR | Major League Soccer Game | Kalshi | 0.550 → 0.990 | Yes | 8,269 | $1.0M | buy file → |
| KXMLSGAME-26NOV01LAFCMIN-MIN | Major League Soccer Game | Kalshi | 0.200 → 0.990 | Yes | 9,221 | $803.0K | buy file → |
| KXMLSGAME-26NOV01NEMIA-TIE | Major League Soccer Game | Kalshi | 0.220 → 0.010 | No | 16,454 | $293.2K | buy file → |
| KXMLSTOTAL-26NOV01PORHOU-3 | MLS Total | Kalshi | 0.600 → 0.990 | Yes | 3,493 | $218.3K | buy file → |
| KXMLSGAME-26NOV01NEMIA-NE | Major League Soccer Game | Kalshi | 0.340 → 0.010 | No | 10,200 | $212.9K | buy file → |
| KXMLSTOTAL-26NOV01PORHOU-4 | MLS Total | Kalshi | 0.390 → 0.990 | Yes | 3,934 | $201.7K | buy file → |
| KXMLSTOTAL-26NOV01NEMIA-3 | MLS Total | Kalshi | 0.730 → 0.990 | Yes | 3,035 | $187.8K | buy file → |
| KXMLSGAME-26NOV01LAFCMIN-LAFC | Major League Soccer Game | Kalshi | 0.600 → 0.010 | No | 7,976 | $184.0K | buy file → |
| KXMLSBTTS-26NOV01NEMIA-BTTS | MLS BTTS | Kalshi | 0.740 → 0.990 | Yes | 1,475 | $174.3K | buy file → |
Single contracts ranked by USD turnover on 2026-11-02 (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 MLS & US Soccer 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 | |
|---|---|---|---|---|---|---|---|
| Major League Soccer Game | Kalshi | event | 202 | February 2026 – present | 6.97 GB | €1 | Buy days |
| MLS Total | Kalshi | event | 193 | March 2026 – present | 4.17 GB | €1 | Buy days |
| USL Championship Game | Kalshi | event | 225 | March 2026 – present | 3.33 GB | €1 | Buy days |
| NWSL Game | Kalshi | event | 178 | March 2026 – present | 2.30 GB | €1 | Buy days |
| MLS Spread | Kalshi | event | 193 | March 2026 – present | 1.87 GB | €1 | Buy days |
| Correct Score (KXMLSSCORE) | Kalshi | event | 97 | July 2026 – present | 1.57 GB | €1 | Buy days |
| Leagues Cup Game | Kalshi | event | 40 | July 2026 – September 2026 | 1.32 GB | €1 | Buy days |
| MLS Cup champion | Kalshi | event | 244 | March 2026 – present | 834 MB | €1 | Buy days |
| Team Total (KXMLSTEAMTOTAL) | Kalshi | event | 94 | July 2026 – present | 822 MB | €1 | Buy days |
| Point Total (KXUSLTOTAL) | Kalshi | event | 106 | July 2026 – present | 804 MB | €1 | Buy days |
| NWSL Total | Kalshi | event | 78 | July 2026 – present | 750 MB | €1 | Buy days |
| MLS BTTS | Kalshi | event | 193 | March 2026 – present | 680 MB | €1 | Buy days |
| Point Total (KXLEAGUESCUPTOTAL) | Kalshi | event | 37 | July 2026 – September 2026 | 616 MB | €1 | Buy days |
| 1st Half Winner (KXMLS1H) | Kalshi | event | 94 | July 2026 – present | 549 MB | €1 | Buy days |
| 1st Half Total (KXMLS1HTOTAL) | Kalshi | event | 94 | July 2026 – present | 529 MB | €1 | Buy days |
| Canadian Premier League | Kalshi | event | 171 | April 2026 – present | 491 MB | €1 | Buy days |
| Correct Score (KXLEAGUESCUPSCORE) | Kalshi | event | 28 | July 2026 – September 2026 | 451 MB | €1 | Buy days |
| Team Total (KXLEAGUESCUPTEAMTOTAL) | Kalshi | event | 28 | July 2026 – September 2026 | 407 MB | €1 | Buy days |
| Spread (KXLEAGUESCUPSPREAD) | Kalshi | event | 37 | July 2026 – September 2026 | 360 MB | €1 | Buy days |
| Spread (KXUSLSPREAD) | Kalshi | event | 106 | July 2026 – present | 357 MB | €1 | Buy days |
| 1st Half Correct Score (KXMLS1HSCORE) | Kalshi | event | 64 | August 2026 – present | 344 MB | €1 | Buy days |
| MLS Western Conference winner? (KXMLSEAST) | Kalshi | annual | 244 | March 2026 – present | 285 MB | €1 | Buy days |
| 1st Half Winner (KXLEAGUESCUP1H) | Kalshi | event | 28 | July 2026 – September 2026 | 192 MB | €1 | Buy days |
| Goalscorer (KXMLSGOAL) | Kalshi | event | 12 | October 2026 – present | 179 MB | €1 | Buy days |
| 1st Half Total (KXLEAGUESCUP1HTOTAL) | Kalshi | event | 28 | July 2026 – September 2026 | 165 MB | €1 | Buy days |
| First Team to Score | Kalshi | event | 76 | July 2026 – October 2026 | 157 MB | €1 | Buy days |
| 1st Half Total (KXUSL1HTOTAL) | Kalshi | event | 91 | July 2026 – present | 146 MB | €1 | Buy days |
| MLS Western Conference winner? (KXMLSWEST) | Kalshi | annual | 244 | March 2026 – present | 137 MB | €1 | Buy days |
| College Soccer Game | Kalshi | event | 15 | August 2026 – September 2026 | 132 MB | €1 | Buy days |
| 1st Half Spread (KXMLS1HSPREAD) | Kalshi | event | 94 | July 2026 – present | 124 MB | €1 | Buy days |
| USL Cup Game | Kalshi | event | 62 | May 2026 – October 2026 | 99.3 MB | €1 | Buy days |
| First Team to Score (KXLEAGUESCUPFTTS) | Kalshi | event | 28 | July 2026 – September 2026 | 95.6 MB | €1 | Buy days |
| 1st Half Winner (KXUSL1H) | Kalshi | event | 91 | July 2026 – present | 73.1 MB | €1 | Buy days |
| NWSL Champion | Kalshi | annual | 177 | May 2026 – present | 30.5 MB | €1 | Buy days |
| MLS Transfers | Kalshi | event | 148 | April 2026 – September 2026 | 21.0 MB | €1 | Buy days |
| USL Championship | Kalshi | event | 236 | March 2026 – present | 17.4 MB | €1 | Buy days |
| First Goal (KXMLSFIRSTGOAL) | Kalshi | event | 11 | October 2026 – present | 12.8 MB | €1 | Buy days |
Polymarket MLS & US Soccer 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 | |
|---|---|---|---|---|---|---|---|
| MLS Soccer | Polymarket | event | 427 | July 2025 – present | 58.0 GB | €1 | Buy days |
| NWSL Soccer | Polymarket | event | 204 | March 2026 – present | 15.1 GB | €1 | Buy days |
| Leagues Cup | Polymarket | event | 111 | May 2025 – present | 7.50 GB | €1 | Buy days |
| USL Championship | Polymarket | event | 103 | July 2026 – present | 5.73 GB | €1 | Buy days |
predict.fun MLS & US Soccer 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 | |
|---|---|---|---|---|---|---|---|
| MLS Soccer | predict.fun | event | 25 | October 2026 – present | 1.68 GB | €1 | Buy days |
MLS & US Soccer — market types across 42 series
167,592 contracts listed as of 2026-11-03, read from each contract's venue identifier — Kalshi lists each type as its own series, Polymarket, predict.fun and OG.com one family per league.
| Market type | Contracts listed (all time) | Listed last 30 days | Share |
|---|---|---|---|
| total / over-under | 35,199 | 9,827 | 21 % |
| player & team props | 28,894 | 19,503 | 17 % |
| spread / handicap | 11,161 | 3,134 | 7 % |
| period markets | 7,886 | 2,707 | 5 % |
| moneyline / winner | 7,657 | 1,095 | 5 % |
| draw | 2,973 | 713 | 2 % |
| both teams to score | 2,831 | 536 | 2 % |
| other | 70,991 | 38,856 | 42 % |
| Total | 167,592 | 76,371 | 100 % |
MLS & US Soccer 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.
Why buy MLS & US Soccer 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.
Agents: /llms.txt · MCP server /mcp · every page as markdown via Accept: text/markdown
MLS & US Soccer prediction-market data — FAQ
Does Kalshi have MLS markets?
Yes — MLS games, spreads, totals, team totals, first-half lines and correct scores, plus Leagues Cup games, spreads, totals and first team to score, and USL totals. Polymarket MLS, Leagues Cup, USL Championship and NWSL each form a family.
How is MLS 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 MLS & US Soccer data go?
Coverage runs May 2025 – present — 4,957 series-days across 42 series on Kalshi & Polymarket & predict.fun. Each series page lists its exact span.
Can I get MLS & US Soccer 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. Kalshi, Polymarket and predict.fun 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 MLS & US Soccer 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 MLS & US Soccer 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 MLS & US Soccer 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.
Which market types are in the MLS & US Soccer data?
As of 2026-11-03 the 42 MLS & US Soccer series with a market-type snapshot had listed 167,592 contracts: total / over-under 35,199 · player & team props 28,894 · spread / handicap 11,161 · period markets 7,886 · moneyline / winner 7,657 · draw 2,973 — counted from every contract file of each family across Kalshi, Polymarket, predict.fun. Kalshi splits these into separate series; Polymarket, predict.fun and OG.com list one family per league. Each series page shows its own mix.
What was the busiest MLS & US Soccer trading day?
2026-07-23 — $11.3M of USD turnover over 244,615 trades in a single series-day. Since our statistics began on 2026-07-08, 42 MLS & US Soccer series recorded 11,918,406 trades and $417.6M in total; the biggest single contract was KXMLSGAME-26NOV01NEMIA-MIA on 2026-11-02 at $2.2M. Sundays are the busiest weekday at about $6.8M per day.