Wimbledon WTA: Lois Boisson vs Elena Rybakina

Platform comparison

Market context

Elena Rybakina has already advanced against Lois Boisson at Wimbledon, grinding out a 6-4, 1-6, 6-3 victory in a three-set first-round scare on Tuesday. The match, originally scheduled for 6:00 AM ET on 29 June, concluded with the second seed surviving a debutant French opponent to secure her place in the next round. Consequently, the prediction market titled “Wimbledon WTA: Lois Boisson vs Elena Rybakina” now carries a 0% implied probability for Lois Boisson advancing, as the event has already been settled on the court.

Historical precedents in tennis prediction markets show that when a match is completed before settlement, conditional tokens on Polygon resolve instantly based on the official result, rendering the contract valueless for the losing side. Similar cases, such as the 2024 WTA upset where a debutant lost after a three-set battle, saw markets resolve to the winner within minutes of the final whistle, with USDC payouts distributed automatically to holders of the winning token. The current 0% probability aligns with these on-chain mechanics, where the outcome is no longer speculative but factual.

Traders should monitor official WTA announcements for any potential match cancellations or delays beyond seven days, which would trigger a 50-50 resolution under the contract terms. However, with the match already completed, the primary catalyst is the confirmation of Rybakina’s advancement in the tournament schedule. Recent coverage from whbl.com confirms Rybakina’s unconvincing win and her progression, eliminating ambiguity. No further action is required on the market, as the settlement window ends on 6 July 2026, but the result is already final.

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Methodology

This page reviews Wimbledon WTA: Lois Boisson vs Elena Rybakina 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.

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'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 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.