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. 3,720 series-days covering June 2025 – September 2026; 7.5M trades · $641.0M turnover in the 30 days to 2026-09-02. Sold as day bundles from €1.
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.
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 | 1,422,062 | $238.2M | 30 | Buy days |
| 2 | Dota 2 esports | Polymarket | 565,204 | $131.5M | 30 | Buy days |
| 3 | Counter-Strike 2 esports | Polymarket | 955,560 | $121.2M | 30 | Buy days |
| 4 | League of Legends Game | Kalshi | 1,142,908 | $42.7M | 28 | Buy days |
| 5 | Counter-Strike 2 Game | Kalshi | 1,542,069 | $38.4M | 28 | Buy days |
| 6 | League of Legends Map Winner | Kalshi | 682,795 | $23.3M | 28 | Buy days |
| 7 | Valorant esports | Polymarket | 237,849 | $18.2M | 30 | Buy days |
| 8 | Counter-Strike 2 Map Winner | Kalshi | 627,298 | $17.5M | 28 | Buy days |
| 9 | Valorant Map Winner | Kalshi | 313,575 | $10.1M | 28 | Buy days |
Trades and USD turnover summed over every contract of the series, from the recorded tick data; 30 days to 2026-09-02. Series without statistics in the window are omitted.
| Venue | Series | With stats | Trades (30d) | Turnover (30d) |
|---|---|---|---|---|
| Polymarket | 4 | 4 | 3,180,675 | $509.0M |
| Kalshi | 18 | 5 | 4,308,645 | $132.0M |
30 days to 2026-09-02, from our own daily statistics per contract.
From the live prediction-movers snapshot (contracts of this topic's series only, settled markets filtered). Intraday — not part of the archived dataset.
| Contract | Venue | Price 24h ago → now | Δ | 24h turnover |
|---|---|---|---|---|
| KXCS2GAME-26SEP030730SINFOK-SIN | Kalshi | 0.48 → 0.25 | -0.23 | $11.3K |
| KXLOLGAME-26SEP021700NRGCNV-NRG | Kalshi | 0.72 → 0.68 | -0.04 | $11.6K |
Live contracts ranked by absolute 24-hour price change (contracts quote 0..1; settled or near-settled contracts excluded). Snapshot 2026-09-03 13:24 UTC. Full list in the prediction movers.
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 | 189 | February 2026 – September 2026 | 34.3 GB | €1 | Buy days |
| Counter-Strike 2 Map Winner | Kalshi | daily | 183 | March 2026 – September 2026 | 16.7 GB | €1 | Buy days |
| League of Legends Game | Kalshi | event | 186 | February 2026 – September 2026 | 14.1 GB | €1 | Buy days |
| Valorant game winner | Kalshi | event | 189 | February 2026 – September 2026 | 10.2 GB | €1 | Buy days |
| League of Legends Map Winner | Kalshi | event | 180 | March 2026 – September 2026 | 9.22 GB | €1 | Buy days |
| Valorant Map Winner | Kalshi | event | 183 | March 2026 – September 2026 | 6.98 GB | €1 | Buy days |
| Dota 2 Game | Kalshi | event | 170 | February 2026 – September 2026 | 6.08 GB | €1 | Buy days |
| Dota 2 Map Winner | Kalshi | event | 161 | March 2026 – September 2026 | 3.26 GB | €1 | Buy days |
| R6 Game | Kalshi | event | 109 | March 2026 – September 2026 | 2.14 GB | €1 | Buy days |
| League of Legends Total Maps | Kalshi | event | 180 | March 2026 – September 2026 | 1.62 GB | €1 | Buy days |
| Call of Duty Games | Kalshi | event | 108 | February 2026 – August 2026 | 1.34 GB | €1 | Buy days |
| CS2 Total Maps | Kalshi | event | 183 | March 2026 – September 2026 | 1.32 GB | €1 | Buy days |
| Overwatch Game | Kalshi | event | 93 | March 2026 – August 2026 | 489 MB | €1 | Buy days |
| COD Map Winner | Kalshi | event | 73 | April 2026 – August 2026 | 438 MB | €1 | Buy days |
| CS2 Tournament Winner | Kalshi | event | 109 | April 2026 – September 2026 | 264 MB | €1 | Buy days |
| Fifa Game | Kalshi | event | 21 | March 2026 – April 2026 | 160 MB | €1 | Buy days |
| Rocket League Game | Kalshi | event | 13 | May 2026 – August 2026 | 141 MB | €1 | Buy days |
| CS2 Qualifier | Kalshi | event | 20 | June 2026 | 17.4 MB | €1 | Buy days |
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 | 355 | September 2025 – September 2026 | 75.1 GB | €1 | Buy days |
| Counter-Strike 2 esports | Polymarket | event | 349 | June 2025 – September 2026 | 66.9 GB | €1 | Buy days |
| Valorant esports | Polymarket | event | 314 | October 2025 – September 2026 | 30.3 GB | €1 | Buy days |
| Dota 2 esports | Polymarket | event | 352 | September 2025 – September 2026 | 23.1 GB | €1 | Buy days |
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).
One purchase covers every contract of a series for one UTC day — tick-by-tick trades plus Level-2 order-book updates per contract — typically €1 per series-day.
Coverage runs June 2025 – September 2026 — 3,720 series-days across 22 series on Kalshi & Polymarket. Each series page lists its exact span.
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.
Typically €1 per series-day bundle — every contract of the series for that UTC day, with invoice on checkout. Pick days in the shop calendar.