TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 11, 7:32 PM EST
Polymarket
This is a Polymarket on the winner of the OnlyBulls Grand Prix of Portland, scheduled for Aug 9, 2026. If the OnlyBulls Grand Prix of Portland is canceled or rescheduled to a date 7 days after the original scheduled date, this market will resolve to "Other." This market will resolve in favor of the driver who is officially listed in first place in the Official Box Score / Final Race Results published by IndyCar following the conclusion of the race. The official results are typically released shortly after the race ends and include any applied penalties and official adjustments. Disqualifications or changes made after the publication of the official results will not affect market resolution. The timing of the victory lane ceremony does not determine the result for this market — only IndyCar's published results will be used to resolve this market. The resolution source will be the official IndyCar website (indycar.com) and a consensus of credible sports news reporting.
This is a Polymarket on the winner of the OnlyBulls Grand Prix of Portland, scheduled for Aug 9, 2026. If the OnlyBulls Grand Prix of Portland is canceled or rescheduled to a date 7 days after the original scheduled date, this market will resolve to "Other." This market will resolve in favor of the driver who is officially listed in first place in the Official Box Score / Final Race Results published by IndyCar following the conclusion of the race. The official results are typically released shortly after the race ends and include any applied penalties and official adjustments. Disqualifications or changes made after the publication of the official results will not affect market resolution. The timing of the victory lane ceremony does not determine the result for this market — only IndyCar's published results will be used to resolve this market. The resolution source will be the official IndyCar website (indycar.com) and a consensus of credible sports news reporting.
Compared to traditional sportsbook odds, prediction market odds for this market often reflect a more nuanced outlook because they incorporate real-time trader sentiment and can adjust rapidly. While sportsbooks may lag or smooth probabilities, this market can show sharper shifts in perceived chances, especially as new practice sessions, qualifying results, or weather updates emerge.
This market resolves around Aug 16, 2026, with the outcome confirmed once the race finish is verifiable from credible public reporting. The winner is determined by official race results, and the market settles accordingly based on who crosses the line first under valid conditions.