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National Bank Open: James Duckworth vs Alex de Minaur

How the prediction market is pricing "National Bank Open: James Duckworth vs Alex de Minaur" right now — Polymarket mid plus comparison with Betfair and Manifold.

Completed Match 50% National Bank Open: James Duckworth vs Alex de Minaur Set 1 O/U 8.5 50% National Bank Open: James Duckworth vs Alex de Minaur Set 2 O/U 8.5 50% National Bank Open: James Duckworth vs Alex de Minaur Set 1 O/U 9.5 50% Volume: $257K Liquidity: $452K Closes: 11 Aug 2026
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National Bank Open: James Duckworth vs Alex de Minaur

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via World Cup 2026 Favorites) Pick
polygram.ink (preferred broker)
50% 50% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Trade this market →
Polymarket (direct)
polymarket.com
50% 50% 0% Geo-blocked in US/UK/EU USDC, on-chain Trade this market →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Trade this market →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Trade this market →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Trade this market →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
Completed Match50%
National Bank Open: James Duckworth vs Alex de Minaur Set 1 O/U 8.550%
National Bank Open: James Duckworth vs Alex de Minaur Set 2 O/U 8.550%
National Bank Open: James Duckworth vs Alex de Minaur Set 1 O/U 9.550%
National Bank Open: James Duckworth vs Alex de Minaur Set 2 O/U 9.550%
National Bank Open: James Duckworth vs Alex de Minaur Match O/U 22.550%
National Bank Open: James Duckworth vs Alex de Minaur Set Handicap +/-1.550%
National Bank Open: James Duckworth vs Alex de Minaur Set 1 O/U 10.550%
National Bank Open: James Duckworth vs Alex de Minaur Set 2 O/U 10.550%
National Bank Open: James Duckworth vs Alex de Minaur Match O/U 23.550%
National Bank Open: James Duckworth vs Alex de Minaur Match O/U 21.532%
National Bank Open: James Duckworth vs Alex de Minaur Set 2 Winner19%
National Bank Open: James Duckworth vs Alex de Minaur Total Sets: O/U 2.516%
National Bank Open: James Duckworth vs Alex de Minaur7%
National Bank Open: James Duckworth vs Alex de Minaur Set 1 Winner6%
National Bank Open: James Duckworth vs Alex de Minaur Set Handicap +/-1.54%

Market context

Alex de Minaur faces James Duckworth in the National Bank Open second round, and the market’s 13% price on Duckworth implies a clear underdog read. That matches the historical split: de Minaur leads the head-to-head 2-0, with wins on hard court in Atlanta in 2022 and on grass at Wimbledon in 2024, while Duckworth has yet to take a set off him in those meetings.[1][4][9]

The probability is also consistent with the broader class gap. De Minaur is ranked No 7 in the draw listing, while Duckworth is No 86, and de Minaur’s 2026 season numbers are stronger across the board, with a higher win rate and better return and break-point figures in published stat comparisons.[13][7] Duckworth’s best route is usually to make serves hold and keep sets tight, but the previous meetings suggest de Minaur has been better in longer exchanges and on return pressure.[14][7]

What can still move this market is simple: whether the match starts on schedule, whether either player is moved on to another court or time slot, and any late injury or withdrawal news before first ball. The market rules also matter: if the match is not played, ends level, or is pushed beyond seven days without a winner, it settles 50-50, so the main risk for either side is no result rather than a shock upset.[8]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for National Bank Open: James Duckworth vs Alex de Minaur. 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

Are prediction markets better than sports betting?
Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
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.
How fast do sports winnings settle?
Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.
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Related Topics

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