Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Brownsburg: Daniel Milavsky vs Rei Sakamoto | 100% |
| Completed Match | 100% |
| Brownsburg: Daniel Milavsky vs Rei Sakamoto Set 1 Winner | 100% |
| Brownsburg: Daniel Milavsky vs Rei Sakamoto Set 2 O/U 8.5 | 100% |
| Brownsburg: Daniel Milavsky vs Rei Sakamoto Set 1 O/U 8.5 | 100% |
| Brownsburg: Daniel Milavsky vs Rei Sakamoto Set 2 Winner | 100% |
| Brownsburg: Daniel Milavsky vs Rei Sakamoto Set Handicap +/-1.5 | 100% |
| Brownsburg: Daniel Milavsky vs Rei Sakamoto Total Sets: O/U 2.5 | 0% |
| Brownsburg: Daniel Milavsky vs Rei Sakamoto Match O/U 21.5 | 0% |
| Brownsburg: Daniel Milavsky vs Rei Sakamoto Set 2 O/U 9.5 | 0% |
| Brownsburg: Daniel Milavsky vs Rei Sakamoto Set 1 O/U 9.5 | 0% |
| Brownsburg: Daniel Milavsky vs Rei Sakamoto Match O/U 22.5 | 0% |
| Brownsburg: Daniel Milavsky vs Rei Sakamoto Set Handicap +/-1.5 | 0% |
| Brownsburg: Daniel Milavsky vs Rei Sakamoto Set 2 O/U 10.5 | 0% |
| Brownsburg: Daniel Milavsky vs Rei Sakamoto Set 1 O/U 10.5 | 0% |
| Brownsburg: Daniel Milavsky vs Rei Sakamoto Match O/U 23.5 | 0% |
Market context
Daniel Milavsky is scheduled to face Rei Sakamoto at the Brownsburg tournament on 14 August 2026, with the market currently reflecting near-certainty of a match completion and decisive result. The 100% implied probability for a winner suggests either strong confidence in both players' fitness or minimal recent developments that would signal withdrawal or cancellation risk. Settlement occurs by 21 August, allowing a seven-day window for rescheduling should delays arise.
Milavsky and Sakamoto occupy different tiers of professional tennis, which historically influences match completion rates. Lower-ranked or developmental-level players show higher rates of withdrawal due to injury, scheduling conflicts, or financial constraints compared to ATP or WTA regulars. The Brownsburg event's tier and draw composition determine baseline completion expectations; Challenger-level tournaments typically see 5–10% cancellation rates, whilst Grand Slam qualifying matches approach 98% completion. Recent tournament data from comparable August events in North America would clarify whether this particular venue and date carry elevated risk factors.
Traders should monitor official tournament draws and player injury reports through the ATP or ITF websites through mid-August. Visa or travel complications occasionally emerge for international players in the final week before events. Weather forecasts for Brownsburg in mid-August are worth tracking, though outdoor cancellations remain rare unless severe storms are predicted. Any announcement regarding either player's withdrawal or the tournament's operational status would immediately pressure the current 100% reading downward.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Today, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
UK Frequently Asked Questions
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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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