Tennis odds on Kalshi vs Polymarket
ATP, WTA and ITF match markets. Right now there are 133 open Tennis markets — 82 on Kalshi, 51 on Polymarket — carrying $636k of volume in the last 24 hours.
Open Tennis markets, by volume
| Market | Venue | Yes | 24h volume | Closes |
|---|---|---|---|---|
| Shanghai Rolex Masters: Hubert Hurkacz vs James Duckworth | polymarket | 68¢ | $36k | 10-07 02:00 UTC |
| Alcaraz vs Lehecka — Carlos Alcaraz | kalshi | 78¢ | $21k | 10-06 12:00 UTC |
| Wong vs Harris — Lloyd Harris | kalshi | 59¢ | $21k | 10-06 05:00 UTC |
| Tomic vs Skatov — Bernard Tomic | kalshi | 56¢ | $20k | 10-06 07:00 UTC |
| Djokovic vs de Minaur — Novak Djokovic | kalshi | 64¢ | $19k | 10-06 14:00 UTC |
| Kotov vs Vukic — Pavel Kotov | kalshi | 57¢ | $17k | 10-06 05:00 UTC |
| Snigur vs Andreeva — Mirra Andreeva | kalshi | 86¢ | $16k | 10-06 06:00 UTC |
| Kotov vs Vukic — Aleksandar Vukic | kalshi | 43¢ | $15k | 10-06 05:00 UTC |
| Antofagasta: Completed Match: Couto/Ribero vs Dias/Silva | polymarket | 54¢ | $14k | 10-06 13:00 UTC |
| Antofagasta: Completed Match: Franco Roncadelli vs Tomas Barrios | polymarket | 54¢ | $14k | 10-06 13:00 UTC |
| Braga: Completed Match: Cacao/Rocha vs Bass/Duncan | polymarket | 54¢ | $14k | 10-06 09:00 UTC |
| Antofagasta: Completed Match: Felipe Meligeni Alves vs Juan Pablo Varillas | polymarket | 54¢ | $14k | 10-06 13:00 UTC |
| Braga: Completed Match: Dodig/Nedic vs Laaroussi/Diez | polymarket | 54¢ | $14k | 10-06 09:00 UTC |
| Antofagasta: Completed Match: Alves/Almeida vs Cossu/Pena | polymarket | 71¢ | $14k | 10-06 13:00 UTC |
| Antofagasta: Completed Match: Dellien/Roncadelli vs Estevez/Ratti | polymarket | 54¢ | $14k | 10-06 13:00 UTC |
| Braga: Completed Match: Jecan/Kielan vs Cervantes/Molchanov | polymarket | 54¢ | $14k | 10-06 09:00 UTC |
| Antofagasta: Completed Match: Thiago Seyboth Wild vs Matias Soto | polymarket | 54¢ | $14k | 10-06 13:00 UTC |
| Antofagasta: Completed Match: Oliveira/Rodrigues vs Aguilar/Barrena | polymarket | 54¢ | $14k | 10-06 13:00 UTC |
| Antofagasta: Completed Match: Samuel Heredia vs Eduardo Ribeiro | polymarket | 54¢ | $14k | 10-06 13:00 UTC |
| Antofagasta: Completed Match: Alex Barrena vs Matheus Pucinelli de Almeida | polymarket | 54¢ | $14k | 10-06 13:00 UTC |
The 20 most active of 133, by 24h volume across both venues, refreshed every few minutes. A market listed on only one venue has no cross-venue price to compare against — which is true of most of them.
What two venues' prices are worth
A gap between Kalshi and Polymarket on the same Tennis market is usually fees, depth, or two contracts that settle differently — not free money. The arbitrage guide shows today's gaps before and after fees, and the fee page shows why the cost peaks near 50¢.
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