Live prediction market odds for Catherine McNally vs. Marta Kostyuk. Compare prices across Kalshi and Polymarket.
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Kalshi / Polymarket
2026-04-27
Catherine McNally vs. Marta Kostyuk — WTA Tennis match scheduled for 2026-04-27. Compare live prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.
Marta Kostyuk is priced at 84.5% implied probability for the “Catherine McNally vs. Marta Kostyuk” event. Platforms are tightly aligned at a 1.0% spread.
Catherine McNally vs. Marta Kostyuk is a prediction market event currently tracked across 2 platforms (Kalshi, Polymarket). Marta Kostyuk leads at 85% implied probability, making it the market favorite.
Marta Kostyuk currently leads at 85% implied probability. Platforms were tightly aligned at a 1.0% spread, suggesting broad consensus on the odds.
Here are the latest odds across Kalshi, Polymarket: Marta Kostyuk: 85¢ on Kalshi, 84¢ on Polymarket. Platforms are tightly aligned at a 1.0% spread, leaving little room for cross-platform arbitrage.
A price of 85¢ means the market estimates a 85% probability that Marta Kostyuk will be the outcome. Buying one share at 85¢ pays out $1.00 if correct — a 18% return — or $0 if wrong. This is the core mechanic of prediction markets: the price directly reflects the crowd's probability estimate.
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Marta Kostyuk
84.5% avg
