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 |
|---|---|
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Set 2 Winner | 100% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Set 2 O/U 8.5 | 100% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Set 1 O/U 8.5 | 100% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Match O/U 22.5 | 98% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo | 63% |
| Completed Match | 50% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Total Sets: O/U 2.5 | 50% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Match O/U 21.5 | 50% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Match O/U 23.5 | 50% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Game Spread +/-2.5 | 50% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Set Handicap +/-1.5 | 2% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Set Handicap +/-1.5 | 2% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Set 1 Winner | 0% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Set 2 O/U 9.5 | 0% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Set 1 O/U 9.5 | 0% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Set 2 O/U 10.5 | 0% |
| US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo Set 1 O/U 10.5 | 0% |
Market context
Dominika Salkova’s qualifying meeting with Akasha Urhobo was listed for 24 August in New York, with the women’s qualifying draw and schedules still showing the pairing as an intended first-round match-up at the US Open.[2][3][13] The market’s 63% price on Salkova implies a modest favourite rather than a dominant edge, which fits the seeded ranking gap on the official order of play: Salkova was the higher-ranked player at 118, with Urhobo at 177.[1][12]
That sort of mid-60s probability is typical for a seeded qualifier against an unseeded player when the draw is static and there is no clear injury or withdrawal news. It leaves meaningful room for late moves if the match is delayed, because in qualifying the main driver is often simply whether the scheduled contestant actually takes the court, rather than any long historical head-to-head signal.[2][10]
The key near-term catalysts are straightforward: confirmation that the match starts on court 14, any late re-ordering in the US Open qualifying schedule, and any retirement or walkover before or during play.[1][3][13] The US Open qualifying programme runs through 27 August, so the market is most exposed to changes in the daily order of play and any official update from the tournament or broadcast listings before the settlement window closes on 31 August.[2][15]
Methodology
This page reviews US Open, Qualification WTA: Dominika Salkova vs Akasha Urhobo across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Prediction Today, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
UK Frequently Asked Questions
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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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