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 |
|---|---|
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 2 O/U 8.5 | 100% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 1 Winner | 100% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 1 O/U 8.5 | 100% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 1 O/U 9.5 | 100% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 2 O/U 9.5 | 100% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 2 O/U 10.5 | 100% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Match O/U 38.5 | 99% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Match O/U 40.5 | 99% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Match O/U 36.5 | 99% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Total Sets: O/U 3.5 | 90% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 4 Winner | 75% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Total Sets: O/U 4.5 | 75% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 3 O/U 8.5 | 75% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 3 O/U 9.5 | 75% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 3 O/U 10.5 | 75% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 4 O/U 8.5 | 75% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 4 O/U 9.5 | 75% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 4 O/U 10.5 | 75% |
| Completed Match | 70% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff | 67% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 3 Winner | 25% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set Handicap +/-1.5 | 20% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set Handicap +/-2.5 | 10% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 2 Winner | 0% |
| Wimbledon ATP: Brandon Nakashima vs Jan-Lennard Struff Set 1 O/U 10.5 | 0% |
Market context
Brandon Nakashima faces Jan-Lennard Struff in the second round of Wimbledon on 1 July 2026, with the crowd-implied probability favouring Nakashima at 67% YES to advance. This match marks their first career encounter, set on Court 12’s grass surface in London, where Nakashima enters as the No. 28 seed after dominating De Minaur at Queen’s, while Struff arrives fatigued from a five-setter in the previous round[4].
Historically, first-time Wimbledon clashes between seeded players and those coming off grueling five-set battles have skewed heavily toward the fresher, higher-ranked opponent, with similar 2024 and 2025 second-round outcomes showing 60–70% success rates for the seeded player[2]. The current 67% probability aligns closely with these precedents, suggesting the market correctly prices Nakashima’s physical advantage and Struff’s recent exertion, though grass specialists like Struff can occasionally defy form if early momentum shifts.
Traders should monitor live set scores and any mid-match injury announcements, as Nakashima’s serve dominance and Struff’s five-set recovery could hinge on a single critical break point or physical lapse[1]. While tennis-specific catalysts dominate, the broader BTC/ETH macro environment may influence on-chain liquidity for USDC settlement, with whale flows into prediction contracts often spiking during high-volatility crypto windows, per recent data from CoinGlass[2]. Any delay beyond 7 days or cancellation would reset the market to 50-50, a contingency traders must weigh against the tight settlement window ending 8 July 2026.
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
- 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 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.
- Are crypto prediction markets taxable in the US?
- In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.
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