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: Sep 27, 9:18 PM EST
Kalshi
This market tracks which player will post the highest combined on-base and slugging percentage across Major League Baseball during the 2026 regular season. Aaron Judge holds the leading probability at 54.0% on Kalshi, with Yordan Alvarez second at 23.0%. The market will resolve based on official MLB statistics following the conclusion of the 2026 regular season on October 15, 2026.
If Aaron Judge leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Shohei Ohtani leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Juan Soto leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Yordan Alvarez leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Nick Kurtz leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Ronald Acuña Jr. leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Vladimir Guerrero Jr. leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Bobby Witt Jr. leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Kyle Tucker leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Corey Seager leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Ketel Marte leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Kyle Schwarber leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Bryce Harper leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Brent Rooker leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Corbin Carroll leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Jose Ramirez leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Junior Caminero leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Cal Raleigh leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Freddie Freeman leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Fernando Tatis Jr. leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Gunnar Henderson leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Rafael Devers leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Pete Alonso leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Matt Olson leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Byron Buxton leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If James Wood leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Yandy Diaz leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Will Smith leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Seiya Suzuki leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Michael Busch leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Roman Anthony leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Mookie Betts leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Shea Langeliers leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Julio Rodriguez leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If George Springer leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Riley Greene leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Ben Rice leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Mike Trout leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Hunter Goodman leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Wyatt Langford leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Elly De La Cruz leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Marcell Ozuna leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Jackson Merrill leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Austin Riley leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Francisco Lindor leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes. If Sal Stewart leads Pro Baseball in OPS (On-base Plus Slugging) for the 2026 regular season, then the market resolves to Yes.
Generally, prediction markets like this one tend to reflect information and insights that may not be immediately captured in traditional sportsbook odds. Sportsbooks often set initial lines based on expert analysis and public perception, while this market aggregates the wisdom of the crowd, allowing for a more dynamic and potentially accurate assessment of probabilities. While sportsbook odds can be influenced by factors like marketing and house bias, the prices here are driven purely by supply and demand among traders. It's common to see differences emerge as new information becomes available and as traders react to events throughout the baseball season.
This market resolves around Oct 15, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, the player with the highest calculated OPS (On-Base Plus Slugging) at the end of the 2026 regular MLB season will be declared the winner. The official MLB statistics will be used to determine the final standings and verify the leader. Traders will then be paid out based on their holdings in the winning player’s contract at the time of resolution.
Numerous factors could significantly impact this market. Player injuries are a major catalyst, as the absence of a key contender would shift probabilities. Strong or poor performance early in the season will also influence trading activity, with players exceeding or falling short of expectations seeing their contract prices adjust accordingly. Trades between teams could also create movement, as a player changing environments might impact their offensive output. Any news regarding rule changes, ballpark factors, or a player’s health and conditioning could also move this market as traders reassess their predictions.