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 |
|---|---|
| Completed Match | 100% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine Total Sets: O/U 2.5 | 100% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine Set 1 Winner | 100% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine Set 2 O/U 8.5 | 100% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine Match O/U 21.5 | 100% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine Match O/U 22.5 | 100% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine Set 2 O/U 9.5 | 100% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine Match O/U 23.5 | 100% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine Set 2 O/U 10.5 | 100% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine | 0% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine Set 1 O/U 8.5 | 0% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine Set 2 Winner | 0% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine Set Handicap +/-1.5 | 0% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine Set 1 O/U 9.5 | 0% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine Set Handicap +/-1.5 | 0% |
| Samsun: Max Basing vs Constantin Bittoun Kouzmine Set 1 O/U 10.5 | 0% |
Market context
Max Basing’s meeting with Constantin Bittoun Kouzmine in Samsun is a lower-tier men's tour match with little public pricing depth, which helps explain why the crowd-implied YES probability can sit at **0%** when the contract is still unresolved rather than actively repriced. Basing is the more documented player in the open results: he reached a career-high ATP singles ranking of No. 311 in March 2026 and made his Grand Slam debut at Wimbledon this year after qualifying for the main draw.[1][6] That profile is consistent with a player who can be competitive at Challenger and ITF level, but it does not by itself determine the outcome against an opponent whose recent form is less visible in the same sources.
For comparison, small-market tennis contracts often remain near zero until there is hard confirmation of a winner, especially when the event is scheduled on the same day and information flow is thin. The settlement language matters: if the match is not played, ends level, or is pushed beyond seven days without a result, the market resolves 50-50, so traders should focus on whether the fixture is actually completed rather than on pre-match sentiment alone. Basing’s 2026 results and ranking data suggest he is an active tour-level player, but the contract only cares about whether he advances against Bittoun Kouzmine, not his season record more broadly.[1][6][9]
The main catalysts are procedural rather than macro-driven: official order-of-play updates, any late court reassignment, walkover or retirement notices, and whether Samsun scheduling slips past the seven-day settlement window. On-chain, the relevant issue is that USDC settlement locks in the final binary outcome, so the market can reprice abruptly once a scoreline or withdrawal is confirmed; until then, thin liquidity can keep displayed odds misleading. Broader BTC or ETH moves matter only indirectly through risk appetite in crypto-native prediction markets, not because they affect the tennis result itself.
Methodology
This page reads Samsun: Max Basing vs Constantin Bittoun Kouzmine 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 alongside for venue context. 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
- 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.
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- 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.
- How volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
- 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.
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