Grass Court Championships: Elise Mertens vs Liudmila Samsonova

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Active sub-markets

Market context

Elise Mertens and Liudmila Samsonova are scheduled to compete in the Grass Court Championships on 15 June 2026, with the match originally set for 4:00 AM ET. The 0% implied probability reflects either a technical issue with market initialisation or genuine uncertainty about whether this fixture will proceed as scheduled. The settlement window closes on 22 June, allowing a seven-day window for the match to be played; any cancellation, tie result, or delay beyond that threshold triggers a 50-50 resolution.

Historically, grass court fixtures between players of this calibre rarely fail to materialise, though scheduling disruptions at summer tournaments are not uncommon. Mertens has competed consistently on grass surfaces throughout her career, whilst Samsonova's grass court record shows variable performance depending on tournament conditions and preparation time. The current zero probability suggests traders may be awaiting confirmation of tournament draw details or player participation status before committing capital.

Key catalysts to monitor include official tournament draw announcements from the Grass Court Championships organisers, any injury updates from either player's camp, and weather forecasts for the scheduled date in mid-June. Recent ATP and WTA communications typically confirm grass court schedules by early June. The unusual 4:00 AM ET start time warrants verification against the tournament's official schedule, as this may indicate a preliminary or provisional listing rather than a confirmed fixture time.

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Grass Court Championships: Elise Mertens vs Liudmila Samsonova plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

Where can I trade this market with the lowest fees?

On Election Predictions UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 it cost to trade on Election Predictions UK?

Zero. Election Predictions UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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?

Not under $1,500 of lifetime trading volume. Above that threshold, Election Predictions UK triggers a quick verification flow that finishes in minutes.