Erste Bank Open: Flavio Cobolli vs Matteo Berrettini odds, Oct 29: Kalshi vs Polymarket
Matteo Berrettini 51% on Kalshi, 53% on Polymarket. Both exchanges' prices for every outcome of Erste Bank Open: Flavio Cobolli vs Matteo Berrettini, Oct 29, $723 traded in 24 hours, updated every 45 seconds.
Thu, Oct 29, 2026, 5:00 AM ET · ATP tennis matches · $723 traded in 24h across both venues
Matteo Berrettini: Kalshi $0.51 vs Polymarket $0.53, −$0.02
Mid prices, in dollars on a contract that pays $1 if it happens: $0.51 is a 51% chance. The gap is Kalshi minus Polymarket.
Two separate exchanges, two accounts. Links may carry a referral code, which never changes what is shown. Disclosures.
All outcomes
| Outcome | Kalshi bid / ask | Polymarket bid / ask | Gap, + = Kalshi higher |
|---|---|---|---|
| Flavio Cobolli | $0.49 / $0.50 | $0.46 / $0.49 | +$0.02 |
| Matteo Berrettini | $0.49 / $0.52 | $0.51 / $0.54 | −$0.02 |
Price history, last 3 days
How this is matched
Games are matched across the two exchanges by league, team codes and date. Polymarket prices come from its live order book, Kalshi from its public API. Refreshed every 45 seconds.
What this is not
Read-only. Nothing here places or routes orders and nothing is advice. Fees, slippage and the time it takes to move money between venues are not in these numbers.