Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
BTC Prediction Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on BTC Prediction → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on BTC Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on BTC Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on BTC Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on BTC Prediction → |
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 BTC Prediction.
Active sub-markets
| Wimbledon, Qualification ATP: Henrique Rocha vs Nicolas Mejia | 0% Henrique Rocha | 100% Nicolas Mejia |
| Completed Match | 100% YES | 0% NO |
| Wimbledon, Qualification ATP: Henrique Rocha vs Nicolas Mejia Total Sets: O/U 2.5 | 100% Over 2.5 | 0% Under 2.5 |
| Wimbledon, Qualification ATP: Henrique Rocha vs Nicolas Mejia Set 1 O/U 9.5 | 100% Over | 0% Under |
| Wimbledon, Qualification ATP: Henrique Rocha vs Nicolas Mejia Set 2 O/U 8.5 | 100% Over | 0% Under |
| Wimbledon, Qualification ATP: Henrique Rocha vs Nicolas Mejia Set 2 O/U 9.5 | 100% Over | 0% Under |
Market context
Henrique Rocha and Nicolas Mejia are due to meet in Wimbledon qualifying on grass, with Rocha rated higher in the live rankings at ATP No. 122 and Mejia at No. 164. The market is already at **0% YES**, which is consistent with a result that has effectively been decided or is being treated as unavailable for normal outcome pricing, while the contract’s USDC settlement still depends on the official match status and whether a winner is recorded before the resolution window closes.[3][6]
For context, this is their first recorded head-to-head on the ATP tour, so there is no direct rivalry history to anchor the price beyond form, ranking, and surface adjustment. Pre-match previews had Rocha as the odds-on side, with one market listing him around 1.35 against Mejia at 3.05, but that kind of short price only matters if the match is actually completed; if it is cancelled, never played, or drifts beyond the seven-day settlement rule without an official winner, the contract can still resolve 50-50 under the market terms.[2][7][6]
Traders should watch the Wimbledon qualifying schedule, court assignment, and any official suspension or withdrawal notices, because those are the events most likely to move a sport contract into delayed or split-settlement territory. In crypto terms, the main relevance is operational rather than directional: if the match settles cleanly, the market pays in USDC on-chain; if it does not, the outcome follows the event-resolution rules regardless of whether BTC or ETH are risk-on or risk-off, though broader crypto flows can still affect how much capital sits in sports markets at the margin. Live scoreboards have shown the fixture listed for 22 June, but a start time alone is not enough to guarantee completion.[1][3][8]
Methodology
This page reads Wimbledon, Qualification ATP: Henrique Rocha vs Nicolas Mejia on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed for comparison. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
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
- 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.
- What does it cost to trade on BTC Prediction?
- Zero. BTC Prediction routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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.
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