Seattle Mariners vs Houston Astros Odds

The Mariners will play the Astros on Sunday, May 25th, 2025. Your timezone's first pitch time is 2:10 pm EDT. Check local listings or your nearest streaming app for coverage.

Learn more about MLB Betting with our handy tutorial and guide. We explain money line, total and run line bets. Plus, a great discussion about exotic bets like MLB Baseball parlays and props.


Bonus
BetMGM Sportsbook#1 BetMGM
REVIEW
New Customers - Up to $1500 Paid Back in Bonus Bets
Bonus Bets Expire in 7 Days
One new customer offer/Add'l Terms

Bet Now
21+ Playable in Ohio only
Gambling Problem? Call 1-800-589-9966

Table of Contents

Key Matchup Stats

  • SportsBetting3.com Power Rankings - As the 2025 season continues, the Seattle Mariners possess a 92.33 SportsBetting3.com power ranking. The Houston Astros now have a 92.00 power ranking. Teams with a higher SportsBetting3.com power ranking will typically be moneyline favorites.
  • Visiting Seattle Mariners - The Seattle Mariners head into this matchup with a 16-11 record as a visiting team. This standing ranks them 1st Overall for visiting team wins.
  • Home Houston Astros - The Houston Astros will throw the first pitch possessing a 17-10 home team record. That puts them 3rd for home team wins in the Overall MLB standings.
  • Runs Scored - Seattle Mariners batters have produced 235 runs, ranking them 9th Overall, with the Houston Astros ranking 16th (209) for runs scored.
  • Runs Allowed - Seattle Mariners pitchers and fielders have allowed 214 runs, ranking them 13th Overall for runs allowed. Meanwhile, the Houston Astros now rank 23rd Overall, allowing 187 runs.
  • Team Streaks - The Seattle Mariners lost their last game. Their opponent, the Houston Astros won their last game.
  • Team Records - Let's review each team's records. The Seattle Mariners have a 29-22 Overall record (0.0 GB American West Division), with the Houston Astros notching a 27-25 Overall standing (2.5 GB American West Division).

Captain Shady Lines

A broken compass is right at least twice a day.

Captain Shady Lines
Captain Shady Lines

Avast ye scallywags! The Seattle Mariners be facing the Houston Astros...in a battle on the high seas of baseball on Sunday...May 25th, 2025. With a record of 29-22, the Mariners be seekin' glory...and plunder against their foes with a 27-25 record.

These Mariners be playin' with a win percentage of 0.569...while them Astros be fallin' behind with a 0.519 win percentage...but do not underestimate the power of the underdog. In their last 10 games, the Mariners have plundered 6 victories...but them Astros be holdin' steady with a record of 5-5.

This game be a showdown of epic proportions, with both teams...fightin' tooth and nail to claim victory on the diamond. Will the Mariners continue their winning streak, or will the Astros...prove to be a formidable foe and plunder a victory of their own?

Get ready to set sail and witness the clash of these...mighty baseball teams on Sunday, May 25th, 2025. Check out this game's prop bets below, bet on MLB baseball at legal US sportsbooks, and review each team's standing at the bottom of the page. Let the battle begin! Arrr!

Best Mariners at Astros Odds


Best Moneyline Betting Odds
Underdog

Houston Astros
Favorite

Seattle Mariners
The Seattle Mariners are the -145 moneyline favorite. Risk $145 to win $100 on the Seattle Mariners at BetMGM. The Houston Astros are the +120 underdog at BetMGM. Risk $100 to win $120 on the Houston Astros. Learn more about how to bet on money lines.

Best Total Betting Odds
OverUnder
BetMGM has the best over line of 8 runs. Risk $115 to win $100. BetMGM has the best under line of 8 runs. Risk $105 to win $100. Our tutorial explains more about total bets.

Best Run Line Betting Odds
Underdog

Houston Astros
Favorite

Seattle Mariners
The Seattle Mariners have a -1.5 +125 run line at BetMGM OH. They are the run line favorite in this matchup. The Houston Astros have a +1.5 -150 run line at BetMGM OH. The Houston Astros are the run line underdogs. Review how to bet on a point spread with our text and video tutorials.

Matchup Odds FAQs

What is the moneyline for the Seattle Mariners vs Houston Astros MLB game on Sunday, May 25th, 2025?

The Seattle Mariners are the -145 moneyline favorite at BetMGM and the Houston Astros are the +120 moneyline underdog at BetMGM.

What is the over-under total line for the Seattle Mariners vs Houston Astros MLB game on Sunday, May 25th, 2025?

The best over line is 8 -115 runs at BetMGM, which means you risk $115 to win $100 betting the over. The best under line is 8 -105 runs at BetMGM, and that means you risk $105 to win $100 betting the under.

What is the run line for the Seattle Mariners vs Houston Astros MLB game on Sunday, May 25th, 2025?

The Seattle Mariners are -1.5 +125 run line favorites at BetMGM, while the Houston Astros are +1.5 -150 run line underdogs at BetMGM.

MLB Odds Example

MLB Odds and Outcomes Explained

Game
BetMGM Sports Betting BetMGM
Bet
Mariners
Astros
5/25/25 2:10pm EDT
-145+120
Bet $100 at BetMGM Ohio
21+ Playable in Ohio only
Gambling Problem? Call 1-800-589-9966
Possible Moneyline Outcomes
  • Houston Astros bettors risk $100 to win $120 at +120 odds. The implied probability for Houston Astros is 45.45%.
  • Seattle Mariners bettors risk $100 to win $68.97 at -145 odds. The implied probability for Seattle Mariners is 59.18%.

Seattle Mariners at Houston Astros Prop Bets

MLB Prop Bets
+ Displays more odds
BetMGM Sports Betting BetMGM
Bet
Mariners
Astros
First Team to Score
5/25/25 2:10pm EDT
-185+140Bet
Mariners
Astros
Tie
1st Inning Winner
5/25/25 2:10pm EDT
+270+325-135Bet
Mariners
Astros
Tie
First 3 Innings Winner
5/25/25 2:10pm EDT
+125+160+290Bet
Mariners
Astros
To Extra Innings
5/25/25 2:10pm EDT
Yes +750No -1200Bet
BetMGM Sports Betting BetMGM
Mariners
Astros
1st Team to Score Will Win
5/25/25 2:10pm EDT
Yes -250No +190Bet
Astros
Total Runs
SEA at HOU
5/25/25 2:10pm EDT
3.5 o -1153.5 u -115Bet
Mariners
Total Runs
SEA at HOU
5/25/25 2:10pm EDT
4.5 o +1004.5 u -130Bet
Colton Gordon
Strikeouts Thrown
SEA at HOU
5/25/25 2:10pm EDT
4.5 o -1254.5 u -105Bet
BetMGM Sports Betting BetMGM
Luis Castillo
Strikeouts Thrown
SEA at HOU
5/25/25 2:10pm EDT
4.5 o -1254.5 u -105Bet

Seattle Mariners & Houston Astros Futures Odds

Latest World Series odds, if available, for each team. Review odds for other teams and learn how to bet on the tournament. See past Championship results and learn how to bet World Series teasers, props and parlays.

Seattle Mariners World Series Odds
2025 Seattle Mariners World Series Odds

Team
BetMGM Sports Betting BetMGM
Mariners
+3000
Bet
Houston Astros World Series Odds
2025 Houston Astros World Series Odds

Team
BetMGM Sports Betting BetMGM
Astros
+2000
Bet

Seattle Mariners & Houston Astros Team Pages

Review each team's season win total odds, futures odds, betting bonuses and other valuable information on our exclusive team betting odds pages. Team betting odds and stats update throughout the season:

Team Standings

2025 MLB Regular Season Standings - Seattle Mariners, Houston Astros
Team W L Pct GB Home Away RS RA Diff Strk L10
Seattle Mariners29230.558+5.013-1116-12238219+19L26-4
Houston Astros28250.528+6.518-1010-15214190+24W26-4

How to Bet on the Game

Time needed: 4 minutes.

How to Bet on the Seattle Mariners vs Houston Astros MLB Game

  1. Open a new sports betting account before game time.

    Review our list of sports betting sites. Open a new account before the game starts on Sunday, May 25th, 2025 at 2:10 pm EDT, making sure to enter all your personal details correctly. Don't forget to add your bonus code.

  2. Visit the sportsbook’s cashier, banking, or deposit page.

    Navigate to the sportsbook's deposit page. Use your Visa card or MasterCard, or deposit with a bank transfer, or other methods like Paypal.

  3. Tap to the sportsbook's MLB page, look for the Seattle Mariners vs Houston Astros Game.

    Navigate to the sportsbook's MLB page. Next, look for live or upcoming matchups. Select the Seattle Mariners vs Houston Astros Game.

  4. Choose your bet and place a wager.

    Choose your bet and then use the funds you deposited to place a wager. The sportsbook will pay your winnings or deduct a losing wager from your account balance after the game.

Other May 25, 2025 MLB Games

Odds Preview 12732