Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) 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 |
|---|---|
| Completed Match | 100% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif Set 2 O/U 8.5 | 100% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif Set Handicap +/-1.5 | 100% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif | 0% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif Set 1 Winner | 0% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif Set 2 Winner | 0% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif Total Sets: O/U 2.5 | 0% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif Set 1 O/U 8.5 | 0% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif Match O/U 21.5 | 0% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif Set Handicap +/-1.5 | 0% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif Set 1 O/U 9.5 | 0% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif Match O/U 22.5 | 0% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif Set 2 O/U 9.5 | 0% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif Set 1 O/U 10.5 | 0% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif Set 2 O/U 10.5 | 0% |
| Contrexeville: Alicia Herrero Linana vs Mayar Sherif Match O/U 23.5 | 0% |
Market context
The WTA 125 quarterfinal in Contrexeville between Alicia Herrero Linana and Mayar Sherif is scheduled to begin today at 09:00 UTC on clay, yet the Polymarket contract for Herrero Linana to advance sits at a 0% implied probability. On Polygon, this USDC-backed conditional token market reflects a near-total consensus that Sherif will win, pricing the outcome as a certainty despite the match being live or imminent. The zero-per-cent entry suggests traders believe any upset is statistically impossible, locking the contract’s value at its floor until the final ball is struck.
Historically, such absolute pricing in tennis markets often precedes a match cancellation or a player withdrawal rather than a genuine competitive upset, as seen in previous WTA 125 events where one-sided odds collapsed only after a no-show. In comparable cases, a 0% probability has resolved to the 50-50 tie clause when matches were delayed beyond the seven-day window or cancelled due to injury, rather than flipping to the underdog. Traders should recall that conditional tokens on Polymarket do not payout on abstract probability shifts but on the binary resolution event, meaning the current price is a bet on the match’s completion and Sherif’s dominance.
Key catalysts include the official start time confirmation and any pre-match injury reports for either player, particularly given the 30°C heat forecast for the Center Court in Contrexeville. A recent WTA tournament update notes that weather delays and player fitness are the primary dependencies for quarterfinal resolutions in this tier [7]. Traders must monitor the live score feed for the first set result; if Herrero Linana takes an early lead, the 0% price may correct rapidly, but if Sherif dominates as expected, the token will settle to YES for her advancement. The settlement window closes on 17 July 2026, allowing time for any potential delays to be resolved within the contract’s terms.
Methodology
This page reviews Contrexeville: Alicia Herrero Linana vs Mayar Sherif 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 Kalshi UK, which mirrors the Polymarket order book at 0% fees.
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
- 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 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.
Trade Contrexeville: Alicia Herrero Linana vs Mayar Sherif on Kalshi UK
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