National Bank Open: Lois Boisson vs Antonia Ruzic

Platform comparison

Market context

Lois Boisson’s meeting with Antonia Ružić in Toronto is priced with the crowd implying **73%** for Boisson, so the market is treating her as a clear favourite to advance. That sits against a body of pre-match data that is much less one-sided: there is no head-to-head record between them, and live listings around the draw have shown Ružić as the higher-ranked player, with some preview material still labelling her the likelier winner despite Boisson’s price advantage in the market.[2][4][7][17]

For handicappers, the key historical frame is that WTA pricing can overreact to recent profile and venue familiarity when the underlying matchup is closer to even. With no prior meetings to anchor style clashes, the market is leaning on recent form and status, while contrarian value may sit with Ružić if the implied edge on Boisson has been inflated by sentiment rather than hard separation in results.[2][13][14] If Boisson is still being backed at around three-in-four, the underdog side is only attractive if you believe the real gap is materially smaller than the crowd’s read.

The main catalysts are straightforward: whether the scheduled Toronto first-round match actually takes place on time, and whether any late draw, schedule or weather changes push it outside the settlement window. Sky Sports and tournament listings have the fixture on the card, but tennis markets can swing sharply on confirmation of start times, court assignments and any injury or withdrawal news in the hours before play.[1][5][8] If the match is delayed, suspended or not completed, the market rules matter as much as form because settlement can revert to 50-50 in specific non-finish scenarios.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews National Bank Open: Lois Boisson vs Antonia Ruzic 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 Who Will Win 2026, which mirrors the Polymarket order book at 0% fees.

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 Who Will Win 2026. 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 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.