Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 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: Lois Boisson vs Elena Rybakina Total Sets: O/U 2.5 | 100% |
| Wimbledon WTA: Lois Boisson vs Elena Rybakina Match O/U 21.5 | 100% |
| Wimbledon WTA: Lois Boisson vs Elena Rybakina Match O/U 22.5 | 100% |
| Wimbledon WTA: Lois Boisson vs Elena Rybakina Match O/U 23.5 | 100% |
| Wimbledon WTA: Lois Boisson vs Elena Rybakina Set 1 O/U 8.5 | 100% |
| Wimbledon WTA: Lois Boisson vs Elena Rybakina Set 1 O/U 9.5 | 100% |
| Completed Match | 100% |
| Wimbledon WTA: Lois Boisson vs Elena Rybakina Set 2 Winner | 100% |
| Wimbledon WTA: Lois Boisson vs Elena Rybakina Set 2 O/U 8.5 | 0% |
| Wimbledon WTA: Lois Boisson vs Elena Rybakina Set 2 O/U 9.5 | 0% |
| Wimbledon WTA: Lois Boisson vs Elena Rybakina Set 2 O/U 10.5 | 0% |
| Wimbledon WTA: Lois Boisson vs Elena Rybakina Set 1 O/U 10.5 | 0% |
| Wimbledon WTA: Lois Boisson vs Elena Rybakina | 0% |
| Wimbledon WTA: Lois Boisson vs Elena Rybakina Set 1 Winner | 0% |
| Wimbledon WTA: Lois Boisson vs Elena Rybakina Set Handicap +/-1.5 | 0% |
| Wimbledon WTA: Lois Boisson vs Elena Rybakina Set Handicap +/-1.5 | 0% |
Market context
The underlying event is the WTA first-round match between Lois Boisson and Elena Rybakina at Wimbledon 2026, originally set for 29 June 2026 but now live on Court 1 in London. Current crowd-implied probability for Boisson advancing sits at 0%, reflecting a near-total consensus that Rybakina will win, a stance that diverges sharply from some sportsbook lines where Boisson still carries marginal odds, suggesting a meaningful gap between prediction-market sentiment and traditional betting markets.
Historically, 0% implied probabilities in top-tier tennis at Wimbledon have rarely held when a match begins but stalls; comparable cases from 2024 and 2025 show that even heavily favoured players like Rybakina can face unexpected setbacks on grass, particularly if a match is delayed or interrupted, which would trigger a 50-50 resolution under this contract’s rules. Traders should monitor real-time updates on match completion status, player injury reports, and any official announcements from the Championships regarding scheduling changes, as these are the primary catalysts that could shift the outcome. A recent Sofascore live feed confirms the match is underway, but no final result has been declared yet, leaving the market in a volatile state [5].
The settlement window closes on 6 July 2026, and any delay beyond seven days without a winner will force a 50-50 resolution, making time a critical dependency. Analyst consensus, as seen in extended highlights and live watchalong commentary, strongly favours Rybakina, yet the 0% line on prediction markets may overstate certainty if the match remains incomplete [2][3]. Divergence between FanDuel’s odds and Polymarket’s implied probability highlights the need for cross-platform scrutiny when evaluating this contract [8][1].
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 Kalshi vs Polymarket, 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.
FAQ
- 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.
- 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 Kalshi vs Polymarket 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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