capper
SEA

Seattle Mariners 2025

World Series Winner Odds36-32
Current Odds
+905
Season:
1D7D30DSeason
Average+405
capper.app

Compare Sportsbooks

BetRiversBest
+1000
FanDuel
+1000
BetMGM
+1000
BetOnline
+900
DraftKings
+700

Seattle Mariners World Series Odds Overview

At +905, the Seattle Mariners are positioned as legitimate World Series contenders this 2025 season with an implied 10% probability.

Opening the 2025 season at +2670, the Seattle Mariners have seen their odds shorten to +905 — a 175.6% improvement in implied probability that reflects growing market confidence.

The Seattle Mariners have been inconsistent lately, going 5-5 in their last 10 games, and the market reflects that uncertainty at +905.

Bettors shopping for the best Seattle Mariners price should look at BetRivers, currently offering +1000 — significantly better than DraftKings at +700. That's a meaningful gap worth capturing.

This season, the Seattle Mariners reached their peak market valuation at +161 on Oct 14 and touched their lowest point at +2810 on Mar 24.

This Seattle Mariners odds tracker is your single source for 2025 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.

Frequently Asked Questions

What are the Seattle Mariners' current World Series odds?
As of June 10, 2026, the Seattle Mariners are +905 to win the World Series, implying a 10% probability.
Have the Seattle Mariners' World Series odds improved this season?
The Seattle Mariners opened the season at +2670 and have improved (shortened) to +905.
Which sportsbook has the best Seattle Mariners World Series odds?
Check the sportsbook comparison table above for the latest prices. Odds vary across books and are updated daily on capper.app.
Where can I track Seattle Mariners world series odds history?
This page is a free Seattle Mariners odds tracker showing daily futures odds movement across 12 sportsbooks. The interactive chart above displays the full title odds history for the current season and previous seasons.
Seattle Mariners Historical Odds Table (32 data points)
DateBetMGMBetOnlineBetRiversBovadaDraftKingsFanDuel
Oct 20, 2025+400+425+400+410+390+400
Oct 13, 2025+220+210+200+200+210+200
Oct 6, 2025—+525+650+550+600—
Sep 29, 2025—+500+500+525+450—
Sep 22, 2025——+800+900+550+600
Sep 15, 2025—+1100+1000+1000+950+1000
Sep 8, 2025—+1400+1800+1500+1400+1600
Sep 1, 2025+1200+1100+1200+950+1400+1200
Aug 25, 2025+1200+1000+1100+950+1200+1100
Aug 18, 2025+1000+900+1000+950+1000+1000
Aug 11, 2025+1000+900+1000+1000+800+1000
Aug 4, 2025+1600+1200+1800+1500+1100+1500
Jul 28, 2025+2200+2000+2400+2200+1800+2100
Jul 21, 2025+2800+2500+2200+2000+1700+2600
Jul 14, 2025+3000+2500+2500+3000+2000+2600
Jul 7, 2025+3000+2500+2800+3000+2000—
Jun 30, 2025+3000+2500+3000+3000+2500—
Jun 23, 2025+3000+2500+3000+3000+2500—
Jun 16, 2025+3000+2200+2200+2500+2200+3100
Jun 9, 2025+2000+1600+1700+2000+2200+2000
Jun 2, 2025+2000+1600+2000+1800+1600+1800
May 26, 2025+1600+1800+2000+1600+1600+1500
May 19, 2025+1800+1800+2000+2000+1600+1800
May 12, 2025+1800+1800+2000+2000+1500+1800
May 5, 2025+2500+2000+2500+2000+1500+1800
Apr 28, 2025+2500+2200+2500+2200+1900+2500
Apr 21, 2025+2500+2500+2500+2100+2200+2500
Apr 14, 2025+3000+2500+2500+2500+2500+3000
Apr 7, 2025+2500+2200+2500+2500+2800+2500
Mar 31, 2025+2800+2200+2500+3000+2200—
Mar 24, 2025+3000+2800+2500+2800+2800+3000
Mar 20, 2025+2500+2800+2500+2800+2800—

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