National Bank Open: Liudmila Samsonova vs Barbora Krejcikova

Platform comparison

Market context

Liudmila Samsonova’s second-round meeting with Barbora Krejcikova at the National Bank Open is priced very differently across markets: the prediction contract is at **100% YES**, while tennis model and preview sites point to Krejcikova as the stronger side, with one pre-match model showing a 68% projected win rate for Krejcikova and another Elo-based forecast around 74% for her. That makes the contract’s current crowd price look far richer than the external tennis consensus, especially given the WTA rankings gap shown in live listings, where Krejcikova is placed well above Samsonova. [2][7][8][9]

The historical framing is mixed rather than one-way. Samsonova beat Krejcikova in a lengthy clay-court match at Strasbourg in 2024, and one head-to-head database says Samsonova leads 3-1, while another records the overall series at 3-3; that inconsistency matters because the market is about a single hard-court match, not the longer rivalry. On comparable evidence, recent hard-court projections have still leaned Krejcikova, so any 100% crowd-implied certainty is more likely reflecting a settled expectation that the match will be played than a strong view on the winner. [3][4][16][17]

For traders, the main catalysts are straightforward: confirmation that the match stays on the Court 1 schedule, the official start time, and whether either player withdraws or is delayed beyond the settlement window. Live listings from Sky Sports, Tennis.com and SofaScore all show the fixture as upcoming/on now around the scheduled 5 August start, which lowers cancellation risk but keeps postponement risk relevant if the slate is disrupted. If the match is not completed or is pushed outside the seven-day limit, the contract would not resolve to either player but to 50-50 under the terms given. [1][2][5][8]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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 Best Prediction Markets. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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.