Warsaw: Teodora Kostovic vs Martyna Kubka

Platform comparison

Market context

Teodora Kostovic and Martyna Kubka are scheduled to meet in Warsaw on outdoor hard court, with Kostovic listed around WTA 146 and Kubka around WTA 187. The market’s 0% crowd-implied YES price is consistent with a simple pre-match setup: if the fixture is still live, the resolution hinges on the first completed result, but if the match is abandoned or delayed beyond seven days without a winner, it flips to 50-50 rather than a player name.[2][9]

For historical framing, the cleanest comparable signal is the head-to-head: Kubka beat Kostovic 2-0 in their only recorded meeting at Leimen in February 2025, and several preview pages still treat that as the only prior matchup.[3][14] That matters for programmatic trading because a bot should not overweight market price alone; on thinly followed WTA 125 matches, a single prior result and ranking gap can move model outputs more than the crowd does, especially when the market is near-illiquid and prone to stale pricing.[3][16]

The main catalysts are operational rather than narrative: the live match start time, any schedule slippage, and whether the event keeps its court assignment or gets pushed by weather, because those are the inputs that change settlement mechanics fastest. Current listings place the match at Warsaw’s centre court on 3 August, with slightly different start times across feeds, which is the sort of discrepancy a rules-based scraper or conditional-order bot should monitor continuously before and after the scheduled slot.[2][10][5]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Warsaw: Teodora Kostovic vs Martyna Kubka across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Bot UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 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.