Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Bonn: Jan Choinski vs Federico Agustin Gomez | 100% |
| Completed Match | 100% |
| Bonn: Jan Choinski vs Federico Agustin Gomez Set 1 O/U 8.5 | 100% |
| Bonn: Jan Choinski vs Federico Agustin Gomez Set 1 Winner | 100% |
| Bonn: Jan Choinski vs Federico Agustin Gomez Set 2 Winner | 100% |
| Bonn: Jan Choinski vs Federico Agustin Gomez Set Handicap +/-1.5 | 100% |
| Bonn: Jan Choinski vs Federico Agustin Gomez Set 1 O/U 9.5 | 100% |
| Bonn: Jan Choinski vs Federico Agustin Gomez Set 2 O/U 8.5 | 0% |
| Bonn: Jan Choinski vs Federico Agustin Gomez Match O/U 21.5 | 0% |
| Bonn: Jan Choinski vs Federico Agustin Gomez Total Sets: O/U 2.5 | 0% |
| Bonn: Jan Choinski vs Federico Agustin Gomez Set 2 O/U 9.5 | 0% |
| Bonn: Jan Choinski vs Federico Agustin Gomez Match O/U 22.5 | 0% |
| Bonn: Jan Choinski vs Federico Agustin Gomez Set 2 O/U 10.5 | 0% |
| Bonn: Jan Choinski vs Federico Agustin Gomez Set Handicap +/-1.5 | 0% |
| Bonn: Jan Choinski vs Federico Agustin Gomez Set 1 O/U 10.5 | 0% |
| Bonn: Jan Choinski vs Federico Agustin Gomez Match O/U 23.5 | 0% |
Market context
Jan Choinski and Federico Agustin Gomez are due to meet on red clay in Bonn, with live listings placing the Challenger semi-final at Centre Court and ATP rankings around 88 for Choinski and 191 for Gomez.[1][4][8] The market’s 100% YES pricing points to a very strong assumption that Choinski advances, but the contract only settles on the on-court result or, if the match is not completed within the rules, on the specific fallback terms in the market description.
The historical framing is fairly simple: in Challenger-level tennis, ranking gap and surface fit often matter more than broader tour name recognition, and clay generally rewards the steadier baseliner with better return numbers. Public tennis feeds also show no past head-to-head between the pair, so traders are leaning on current form, draw position, and surface context rather than a deep match-up history.[10][12] That makes the 100% implied probability less a pure price on certainty than a reflection of the market being heavily skewed to one side before the first ball is firmly in play.[16]
What matters now is whether the match starts on schedule and proceeds normally, because the contract explicitly falls back to 50-50 if it is cancelled, tied, or delayed beyond seven days without a winner. Live schedules have already varied between 08:30 and 11:00 UTC across data providers, which is a reminder that start-time drift or court sequencing can matter for settlement timing as much as the tennis itself.[1][2][4] In broader markets, BTC and ETH volatility can also shape risk appetite around fixed-settlement products, but the direct driver here remains Bonn’s order of play, any last-minute withdrawal, and whether the semi-final is completed under normal ATP Challenger conditions.[16]
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
FAQ
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- How does UMA secure the resolution?
- The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.
- Which crypto markets exist on Polymarket?
- Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.
Trade Bonn: Jan Choinski vs Federico Agustin Gomez on BTC Prediction
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