TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 31, 11:07 AM EST
Kalshi
This market tracks whether tennis player Jannik Sinner will accumulate as many major tournament wins in 2026 as the combined total of professional golfers Scottie Scheffler, Rory McIlroy, and Bryson DeChambeau. On Kalshi, the leading outcome—that Sinner will match or exceed their combined major wins—stands at 64.0%. Resolution will be determined by official major tournament records as of the end of 2026. Watch the outcomes of the four major golf championships and Grand Slam tennis tournaments throughout 2026 to gauge whether Sinner's major title count will reach parity with the three golfers' combined total by the September 14, 2026 resolution date.
Major tournament wins in 2026 are counted across tennis and golf. For tennis, only singles titles at the Australian Open, French Open, Wimbledon, and U.S. Open count toward the total—doubles titles do not count. For golf, only victories at The Masters, U.S. Open, The Open Championship (British Open), and PGA Championship count. The market compares Jannik Sinner's total major wins against the combined total of Scottie Scheffler, Rory McIlroy, and Bryson DeChambeau. If Sinner wins more majors than the combined group, the market resolves to Yes for Sinner. If the combined group wins more majors than Sinner, the market resolves to Yes for the combined group. If both sides have equal major wins, the market resolves to Yes for the tie outcome.
The market resolves on Sep 14, 2026. Resolution is determined by comparing the total number of major tournament victories each player accumulates throughout 2026. The player with the highest count of major titles won during the calendar year determines the outcome. This includes all four Grand Slam events plus any other tournaments designated as majors by the governing bodies. Final tallies are verified once the last major tournament of 2026 concludes.
Major tournament results directly impact this market. Each Grand Slam winner or finalist performance reshapes odds for who will finish with the most titles. Injury announcements—especially to top contenders—can shift probabilities significantly. Changes in player form, coaching changes, or surface-specific breakthroughs during the year influence trader expectations. Draw announcements for upcoming majors and head-to-head matchups between contenders also drive repricing. Retirement news or unexpected breakout performances by rising players can alter the competitive landscape and move market odds substantially.