Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on PolyGram.
Active sub-markets
| Bengaluru 3: Petr Bar Biryukov vs Alastair Gray | 100% YES | 0% NO |
| Completed Match | 100% YES | 0% NO |
| Bengaluru 3: Petr Bar Biryukov vs Alastair Gray Total Sets: O/U 2.5 | 100% YES | 0% NO |
| Bengaluru 3: Petr Bar Biryukov vs Alastair Gray Set 1 Winner | 0% YES | 100% NO |
| Bengaluru 3: Petr Bar Biryukov vs Alastair Gray Set 1 O/U 8.5 | 100% YES | 0% NO |
| Bengaluru 3: Petr Bar Biryukov vs Alastair Gray Match O/U 21.5 | 100% YES | 0% NO |
Market context
This market refers to the tennis match between Petr Bar Biryukov and Alastair Gray in the Bengaluru 3, originally scheduled for May 22, 2026 at 1:30AM ET. This market will resolve to 'Petr Bar Biryukov' if Petr Bar Biryukov advances against Alastair Gray. This market will resolve to 'Alastair Gray' if Alastair Gray advances against Petr Bar Biryukov. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, th
Methodology
This page compares Bengaluru 3: Petr Bar Biryukov vs Alastair Gray specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- Where can I trade this market with the lowest fees?
- On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
Trade Bengaluru 3: Petr Bar Biryukov vs Alastair Gray on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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