Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
73% | 27% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
73% | 27% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk Set 1 O/U 8.5 | 73% |
| Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk Set 2 O/U 8.5 | 70% |
| Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk Set 2 O/U 9.5 | 70% |
| Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk Set 2 O/U 10.5 | 60% |
| Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk Match O/U 21.5 | 54% |
| Completed Match | 50% |
| Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk Set 1 O/U 9.5 | 46% |
| Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk Match O/U 22.5 | 46% |
| Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk Set Handicap +/-1.5 | 44% |
| Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk Match O/U 23.5 | 41% |
| Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk Total Sets: O/U 2.5 | 40% |
| Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk Set 2 Winner | 37% |
| Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk Set 1 Winner | 36% |
| Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk | 30% |
| Wimbledon WTA: Ashlyn Krueger vs Marta Kostyuk Set 1 O/U 10.5 | 27% |
Market context
Ashlyn Krueger faces Marta Kostyuk in a Wimbledon women’s singles match on Court 2 in London, scheduled for 6 July 2026 at 10:00 UTC. The contest, originally set for 5 July, is now underway with Krueger having won the first set, though the match remains incomplete as of the latest update[7][4].
Historically, first-week Wimbledon matches between players with one prior H2H meeting but no grass history often resolve as coin-flips, yet experience and ceiling tilt the edge toward the more accomplished player. Kostyuk, a 2025 Roland Garros semi-finalist, holds a 54% win probability in analyst models, citing her Slam experience and superior baseline control when her ball-striking is sharp[1]. Conversely, Krueger leads 1–0 overall, won their last meeting in Adelaide 2025, and is serving at 84% on first serves this fortnight, giving her a 46% implied chance[1][3]. The prediction market’s 31% YES for Krueger diverges notably from both sportsbook odds (Kostyuk at 1/2, Krueger at 163/100) and Elo projections (87.1% for Kostyuk), suggesting either late market adjustment or mispricing relative to form[2][3].
Traders should monitor official Wimbledon updates on match completion, as unresolved matches beyond seven days trigger a 50–50 settlement. Key catalysts include Krueger’s serve consistency—five aces in her last match—and Kostyuk’s second-serve percentage, which hit 63% against Navarro[1]. Any delay beyond 7 July or injury withdrawal would reset the probability to parity, making real-time score feeds and tournament bulletins critical[1][7].
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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