Live prediction market odds for James Duckworth vs. Tallon Griekspoor. Compare prices across Kalshi and Polymarket.
Kalshi / Polymarket
2026-06-30
James Duckworth vs. Tallon Griekspoor — ATP Tennis match scheduled for 2026-06-30. Compare live prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.
Tallon Griekspoor leads the “James Duckworth vs. Tallon Griekspoor” event at 69.0% implied probability, followed by James Duckworth at 31.5%. Platforms are tightly aligned at a 1.0% spread.
James Duckworth vs. Tallon Griekspoor is a prediction market event currently tracked across 2 platforms (Kalshi, Polymarket). Tallon Griekspoor leads at 69% implied probability, making it the market favorite. Other contenders include James Duckworth at 32%.
Tallon Griekspoor currently leads at 69% implied probability. Behind Tallon Griekspoor, James Duckworth at 32% are the next closest contenders. Platforms were tightly aligned at a 1.0% spread, suggesting broad consensus on the odds.
Here are the latest odds across Kalshi, Polymarket: Tallon Griekspoor: 69¢ on Kalshi, 69¢ on Polymarket. James Duckworth: 32¢ on Kalshi, 31¢ on Polymarket. Platforms are tightly aligned at a 1.0% spread, leaving little room for cross-platform arbitrage.
A price of 69¢ means the market estimates a 69% probability that Tallon Griekspoor will be the outcome. Buying one share at 69¢ pays out $1.00 if correct — a 45% return — or $0 if wrong. This is the core mechanic of prediction markets: the price directly reflects the crowd's probability estimate.
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Tallon Griekspoor
69.0% avg
Official settlement criteria, resolution sources, and edge cases across Kalshi and Polymarket.
KalshiIf Tallon Griekspoor wins the Griekspoor vs Duckworth professional tennis match in the 2026 Wimbledon Men Singles Round Of 128 after a ball has been played, then the market resolves to Yes.
The following market refers to the Griekspoor vs Duckworth professional tennis match in the 2026 Wimbledon Men Singles Round Of 128 after a ball has been played. If the match does not occur (signaled by a ball being played) due to a player injury, walkover, forfeiture, or any other cancellation (all before the match starts), the market will resolve to a fair price in accordance with the rules. If this match is postponed or delayed, the market will remain open and close after the rescheduled match has finished (within two weeks).
PolymarketThis market refers to the tennis match between Tallon Griekspoor and James Duckworth in the Wimbledon ATP, originally scheduled for June 29, 2026 at 6:00AM ET. This market will resolve to 'Tallon Griekspoor' if Tallon Griekspoor advances against James Duckworth. This market will resolve to 'James Duckworth' if James Duckworth advances against Tallon Griekspoor. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
