Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) 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 |
|---|---|
| Wimbledon WTA: Elise Mertens vs Elena Rybakina | 100% |
| Completed Match | 100% |
| Wimbledon WTA: Elise Mertens vs Elena Rybakina Set 1 O/U 8.5 | 100% |
| Wimbledon WTA: Elise Mertens vs Elena Rybakina Set 2 Winner | 100% |
| Wimbledon WTA: Elise Mertens vs Elena Rybakina Set 1 Winner | 100% |
| Wimbledon WTA: Elise Mertens vs Elena Rybakina Set 1 O/U 9.5 | 100% |
| Wimbledon WTA: Elise Mertens vs Elena Rybakina Set 1 O/U 10.5 | 100% |
| Wimbledon WTA: Elise Mertens vs Elena Rybakina Set 2 O/U 8.5 | 0% |
| Wimbledon WTA: Elise Mertens vs Elena Rybakina Total Sets: O/U 2.5 | 0% |
| Wimbledon WTA: Elise Mertens vs Elena Rybakina Match O/U 21.5 | 0% |
| Wimbledon WTA: Elise Mertens vs Elena Rybakina Set Handicap +/-1.5 | 0% |
| Wimbledon WTA: Elise Mertens vs Elena Rybakina Match O/U 22.5 | 0% |
| Wimbledon WTA: Elise Mertens vs Elena Rybakina Set 2 O/U 9.5 | 0% |
| Wimbledon WTA: Elise Mertens vs Elena Rybakina Set 2 O/U 10.5 | 0% |
| Wimbledon WTA: Elise Mertens vs Elena Rybakina Match O/U 23.5 | 0% |
Market context
Elise Mertens faces Elena Rybakina in the third round of the 2026 Wimbledon WTA, with the match scheduled to begin at 6:00 AM ET on 4 July 2026 at SW19. The crowd-implied probability sits at 100% YES for Rybakina to advance, reflecting overwhelming consensus that the Kazakh star will dominate this encounter. Historically, Rybakina holds a daunting 7-1 lead across their eight prior meetings, including straight-set victories in both 2024 third-round clashes at Wimbledon and the Australian Open[1][8]. Her 69.49% win percentage on grass and past title success at SW19 make her the clear favourite, while Mertens, despite solid baseline play, has rarely troubled the Kazakh in high-stakes matches[1].
Traders should monitor any late injury announcements or weather delays, though current conditions at Wimbledon appear stable for play. Rybakina’s imposing serve and 76% win rate in 2026 matches suggest she will likely wrap the contest in two sets without a tie-break[1]. The value spot for contrarian traders lies in the slim possibility of an upset, given Mertens’ threat from the baseline, but the consensus remains firmly on Rybakina cruising to her eighth win[1]. With both players dropping just one set en route to this round, the match dynamics point heavily toward Rybakina stamping her authority early[1]. No major schedule dependencies are expected beyond the standard tournament timeline, and the settlement window closes on 11 July 2026.
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 Who Will Win, which mirrors the Polymarket order book directly.
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.
FAQ
- 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 Who Will Win. 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.
- 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.
- 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.
Trade Wimbledon WTA: Elise Mertens vs Elena Rybakina on Who Will Win
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