Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
68% | 32% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
68% | 32% | 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 |
|---|---|
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier Set 1 O/U 8.5 | 68% |
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier | 61% |
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier Match O/U 21.5 | 60% |
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier Set 1 Winner | 57% |
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier Set 2 Winner | 56% |
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier Match O/U 22.5 | 51% |
| Completed Match | 50% |
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier Set 2 O/U 8.5 | 50% |
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier Set 2 O/U 9.5 | 50% |
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier Set 2 O/U 10.5 | 50% |
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier Match O/U 23.5 | 44% |
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier Total Sets: O/U 2.5 | 40% |
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier Set 1 O/U 10.5 | 40% |
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier Set Handicap +/-1.5 | 39% |
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier Set 1 O/U 9.5 | 30% |
| National Bank Open: Aleksandar Vukic vs Daniel Altmaier Set Handicap +/-1.5 | 23% |
Market context
Aleksandar Vukic and Daniel Altmaier are due to meet at the National Bank Open, and the market is pricing Vukic at about **61%** to advance. That is close to a coin flip rather than a strong favourite, which fits a matchup where the main read is often the head-to-head and the surface rather than a large ranking gap.
The historical record is mixed. Official ATP head-to-head data shows the pair have split their meetings, while third-party databases list Vukic slightly ahead overall, including a win in their most recent meeting at Tokyo in September 2025 and a four-set grass-court win over Altmaier at Wimbledon in 2023[1][2][5][9]. Across those meetings, Vukic has also taken more sets, which helps explain why the market sits above 50% even though the contest is not one-sided[2][5][14]. For a contract that settles in USDC on outcome, the key point is that the price is reflecting modest edge rather than conviction, so late repricing can be sharp if the event becomes more certain or more doubtful.
Traders should watch whether the match is actually played on the scheduled National Bank Open card, because a cancellation, tie, or delay beyond seven days would force a 50-50 resolution under the contract terms. The live status pages already show the fixture attached to the 2026 draw, with Vukic listed around ATP 101 live and Altmaier around ATP 60 live in one stats feed, which suggests the market is looking through ranking difference and focusing on direct matchup dynamics[15]. If the broader ATP schedule shifts, or if tournament order changes because of weather or prior-round backlog, that matters more here than BTC or ETH spot moves; the contract’s payoff is driven by whether one player officially advances, not by crypto-market volatility.
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.
- 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.
- 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.
- 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 National Bank Open: Aleksandar Vukic vs Daniel Altmaier on BTC Prediction
Live order book, 0% fees, USDC settlement in seconds.
Open live market →