Pronóstico: National Bank Open: Antonia Ruzic vs Madison Keys

Platform comparison

Market context

Madison Keys meets Antonia Ružić in the National Bank Open second round, and the market’s **0% YES** price is far tighter than the form and head-to-head data suggest. Keys has already beaten Ružić twice in 2026, including a straight-sets win at Roland Garros, and the broader pricing from recent match models and bookmakers has repeatedly put Keys in the low-80s to high-80s range for this matchup.[1][5][17][19]

That said, recent comparable results matter because Keys was upset by Liudmila Samsonova in Washington last week, her first opening-round loss of the season, which is the main reason traders should not treat this as a pure name-value line.[1] Ružić also has a limited track record at this level in North America, with Flashscore noting her loss to Karolina Muchova on her Montreal main-draw debut last year, so there is little evidence of a major surface or venue-specific edge for the underdog.[1]

For live catalysts, watch the official match status and any late schedule movement, because this market only goes to 50-50 if the match is cancelled, ends level, or is delayed beyond seven days without a winner. The Tennis.com event listing places the match in Toronto Round 2, while live score feeds show the contest is already underway, so any retirement, walkover, or completion status will be decisive for settlement.[14][18]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Pronóstico: National Bank Open: Antonia Ruzic vs Madison Keys. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

When do sports markets resolve?

Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.

Can I bet on individual matches?

Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.

Which sports markets are available?

Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.

What's the difference between match odds and outright odds?

Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.