TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 19, 1:45 PM EST
Kalshi
The Open Championship is one of professional golf's four major tournaments, held annually and traditionally played on links courses in the United Kingdom. These markets track which geographic region produces the winner of the 2026 edition of the tournament.
The 2026 Open Championship region markets divide the world into four geographic categories based on the winner's nationality. A golfer from the United States resolves the US market to Yes. Golfers from the United Kingdom or Ireland resolve the UK & Ireland market to Yes. Golfers from continental European nations resolve the Continental Europe market to Yes. Golfers from all other countries—including non-continental European nations, Asia, Australia, Africa, and the Americas outside the US—resolve the Rest of World market to Yes. Each market corresponds to exactly one geographic region, and the tournament's official winner determines which region's market resolves affirmatively based on their country of citizenship or primary tour affiliation.
Prediction market odds and sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set odds to balance liability and profit margin, while prediction markets like this one are driven by trader belief and financial risk. Prediction markets typically aggregate dispersed information more efficiently over time, sometimes pricing outcomes differently than traditional oddsmakers. Comparing this market's implied probabilities to major sportsbook lines can reveal where professional and retail traders disagree on regional chances, offering insight into which outcomes may be undervalued or overpriced relative to consensus.
On Kalshi, this market is priced through a continuous order-book mechanism where traders buy and sell shares representing each regional outcome. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each share's price reflects the collective belief in that region's probability of winning, with buyers and sellers negotiating in real time. As new information emerges—player injuries, course conditions, or form updates—traders adjust their positions, moving prices up or down. The bid-ask spread represents the gap between what buyers and sellers are willing to pay, and tighter spreads generally indicate higher confidence and liquidity in that outcome.
This market resolves around Jul 20, 2026, once the Open Championship concludes and the winner is officially confirmed. The outcome is determined by which region the champion golfer represents, verified against credible public sources covering the tournament. Traders holding shares in the winning region receive their payout, while other positions expire worthless. The exact resolution timing depends on the official announcement and any potential playoffs or verification delays, but the market typically settles within hours of the final result being confirmed.
Several catalysts can shift regional odds before Jul 20, 2026. Player injuries or withdrawals involving top contenders from a particular region will immediately reprice that outcome lower. Course conditions, weather forecasts, and practice-round performance updates influence trader confidence in specific regions' suitability. Major tournament results in the weeks leading up to the Open—such as strong finishes by regional representatives—often trigger price movement. Media narratives around form, course fit, and historical regional success also sway sentiment. Late-breaking news about player fitness or equipment changes can create volatility, as traders reassess which regions hold the strongest field of competitors.