The 2026 AL pennant market trades across roughly $9.0M in cumulative volume on Kalshi and Polymarket, with 15 American League clubs priced. It resolves to the team that wins the American League Championship Series and reaches the World Series, not the eventual champion. The Yankees and the league-best Rays head the contender tier, with the Red Sox, White Sox, and Astros chasing. The live board above ranks current cross-platform prices; the pennant is decided in October 2026.
The 2026 AL pennant board has been reordered since midsummer. The Tampa Bay Rays own the American League's best record at 74-49 and lead the AL East by 5.5 games. The New York Yankees sit 69-55 and still carry the league's best run differential at +85. Fifteen clubs trade on this board across roughly $9.0M in cumulative volume, and the contract turns on one question: which team wins the American League Championship Series and takes the AL's berth in the World Series. A pennant winner can still lose the World Series, and that distinction is the whole point of the contract.
The American League splits into three tiers with fewer than 40 games left in the regular season, and the top two contenders arrived there from opposite directions. The Rays have banked the wins, 74-49 with a +52 run differential and a 5.5-game cushion in the AL East. The Yankees have the better underlying profile, an AL-high +85 differential on a 69-55 record, and the board still prices New York as the American League's chalk. That split between record and run differential is the most interesting disagreement on this market: one club owns the seeding, the other owns the peripherals.
The chase pack is where the board changed most this summer. Boston is 66-58 with a +81 run differential, third-best in the league, and holds a Wild Card position rather than chasing one. The Chicago White Sox are the structural surprise of the season at 65-58, leading the AL Central with a +47 differential, which puts a division title and the bracket path that comes with it in reach for a club that opened the year outside the contender conversation; the AL Central division futures 2026 track that race directly. Houston leads the AL West at 63-62 while being outscored by 30 runs on the season, a division lead built on the weakness of the division rather than on a dominant roster.
The long tail runs deep and it now holds names that sat near the top of this board in June. Seattle has fallen to 59-66 after entering the summer as the second-most expensive contract on the market, and the price reset that followed is the largest single move this board has produced all year. Detroit is 60-64 despite a +83 run differential, the widest record-to-differential gap in the league. Cleveland and Minnesota sit at 60-65, Texas at 61-64, Baltimore at 61-63, and Toronto at 61-65 with a -57 differential. The Royals at 51-74, the Athletics at 49-75, and the Angels at 49-76 are still listed and priced as longshots. That deep tier is also where Kalshi and Polymarket disagree most in percentage terms, since the two user bases value the American League's least likely pennant winners differently.
What separates this market from the World Series board is bracket math. A pennant winner only has to navigate the American League side: the Wild Card round, the Division Series, and then a best-of-seven ALCS. It never faces a National League opponent. That narrower path is why a team's pennant price sits above its World Series price, and why this board is the cleaner read on which American League club the market actually trusts in October.
This market resolves to the team that wins the 2026 American League Championship Series, the best-of-seven round that decides the AL pennant and sends its winner to the World Series. The ALCS follows the Division Series and is played in October 2026, with the listed contracts carrying a resolution window through November 1, 2026. The winning club is credited with the pennant the moment it clinches the series; the losing finalist and every eliminated team resolve to zero. The World Series result that follows has no bearing on this contract.
The pennant is one half of the October bracket. The National League side trades on the 2026 NL Pennant odds board, and the title itself is settled on the 2026 World Series odds market, where every American League contender is priced against the full field. The seeding fight that shapes this bracket runs through the AL East division futures 2026, individual value is priced on the AL MVP 2026 odds board, and the MLB prediction markets hub carries the division, award, and season-total contracts for the rest of the league. Each reads the same American League field from a different angle.
Resolves to the team that wins the 2026 American League Championship Series, the best-of-seven round played in October 2026 that decides the American League pennant. The winning team earns the AL's berth in the 2026 World Series, and the listed contracts carry a resolution window through November 1, 2026. Each team contract pays $1 per share if that team wins the pennant; all other team contracts resolve to $0. This market settles on the ALCS outcome only and is independent of the World Series result, so a team that wins the pennant here has resolved this contract regardless of whether it goes on to win the championship. If the postseason is canceled or the ALCS is voided past the resolution window, contracts resolve per each platform's specific rules.
The live board above ranks all 15 American League contenders with current Kalshi and Polymarket prices across roughly $9.0M in cumulative volume. The Yankees and Rays lead the board, followed by the Red Sox, White Sox, and Astros.
It resolves when a team wins the American League Championship Series, the best-of-seven round played in October 2026, with the listed contracts carrying a resolution window through November 1, 2026. The pennant winner advances to the World Series and the contract settles the moment the ALCS is clinched.
No. This market settles on the ALCS winner, the team that wins the American League pennant and reaches the World Series. A team can win the AL pennant here and still lose the World Series, which is priced separately on the 2026 World Series board.
As of August 17, 2026, the New York Yankees are the board's top price at 26c, with the Tampa Bay Rays at 23c despite Tampa Bay owning the American League's best record at 74-49. The Red Sox at 12c and the Astros at 10.5c sit next.
The pennant trades on both Kalshi and Polymarket, and the board above merges the two into one cross-platform price per team. The widest percentage disagreements between the platforms sit in the deep longshot tier.
Watch the AL East race between the 74-49 Rays and the 69-55 Yankees for seeding, the White Sox hold on the AL Central at 65-58, and the Wild Card scramble where Texas, Detroit, Toronto, Minnesota, and Cleveland sit within 1.5 games of the final berth.