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 |
|---|---|
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora Set 1 Winner | 100% |
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora Set 1 O/U 8.5 | 100% |
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora Match O/U 21.5 | 100% |
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora Total Sets: O/U 2.5 | 100% |
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora Set 2 O/U 8.5 | 100% |
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora Set 1 O/U 9.5 | 100% |
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora Match O/U 22.5 | 100% |
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora Match O/U 23.5 | 100% |
| Completed Match | 50% |
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora | 0% |
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora Set 2 Winner | 0% |
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora Set Handicap +/-1.5 | 0% |
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora Set Handicap +/-1.5 | 0% |
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora Set 2 O/U 9.5 | 0% |
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora Set 2 O/U 10.5 | 0% |
| ITF M25 East Lansing Men: James McCabe vs Noah Zamora Set 1 O/U 10.5 | 0% |
Market context
James McCabe faces Noah Zamora in an ITF Men's 25k tournament at East Lansing, Michigan, with the match originally scheduled for 12 August 2026 at 14:00 ET. The 0% implied probability reflects either a technical settlement state or genuine uncertainty about match execution; ITF M25 events are lower-tier professional circuits where fixture cancellations and scheduling delays occur more frequently than ATP or Challenger-level tournaments. Settlement hinges on match completion by 19 August 2026 at 18:00 UTC—a seven-day buffer that accommodates rain postponements typical of North American summer tournaments.
Historical precedent suggests ITF M25 matches resolve without incident roughly 85–90% of the time, though withdrawal rates run 3–5% higher than Challenger events. McCabe and Zamora's head-to-head record, recent ranking trajectories, and surface preference (hard court) are material to outcome probability once the match is confirmed to proceed. Traders should monitor ITF official draws and player social media for last-minute withdrawals or injury announcements in the 48 hours before play; East Lansing's August weather patterns occasionally trigger multi-day delays that could trigger the 50-50 tie-break clause if no winner emerges within the settlement window.
On-chain settlement will occur in USDC against the match result. The current zero probability likely reflects incomplete fixture confirmation or a data lag between ITF scheduling and market parameters. Monitoring the official ITF website and ATP player profiles for confirmed participation status is essential before committing capital, given the binary nature of ITF M25 fixture execution.
Methodology
This page reads ITF M25 East Lansing Men: James McCabe vs Noah Zamora 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.
UK Frequently Asked Questions
- 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.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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