At +1060, the Seattle Mariners are positioned as legitimate World Series contenders this 2026 season with an implied 8.6% probability.
Opening the 2026 season at +1270, the Seattle Mariners have seen their odds shorten to +1060 — a 18.1% improvement in implied probability that reflects growing market confidence.
The Seattle Mariners have been inconsistent lately, going 4-4 in their last 8 games, and the market reflects that uncertainty at +1060.
Bettors shopping for the best Seattle Mariners price should look at BetRivers, currently offering +1200 — significantly better than DraftKings at +950. That's a meaningful gap worth capturing.
This season, the Seattle Mariners reached their peak market valuation at +1060 on Apr 4 and touched their lowest point at +1270 on Feb 17.
This Seattle Mariners odds tracker is your single source for 2026 world series futures odds. The chart above shows the full odds history — how Seattle Mariners title odds have moved day by day — giving you a complete picture of the market's view on their championship chances.