The Astros will play the Mariners on Monday, April 13th, 2026. Your timezone's first pitch time is 4:10 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.
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Table of Contents
- Matchup Stats
- Captain Shady Lines
- Best Odds
- Interactive Odds Example
- Prop Bets
- Team Futures Odds
- Team Pages
- Team Standings
- Other Games Today
Key Matchup Stats
- SportsBetting3.com Power Rankings - The Houston Astros have a 88.67 power ranking. The power ranking for the Seattle Mariners is 95.00.
- Visiting Houston Astros - The Houston Astros have a 1-8 record as a visiting team, ranking them 6th Overall for visiting team wins.
- Home Seattle Mariners - The Seattle Mariners have a 6-4 record as a home team. They rank 2nd for home team wins in the Overall standings.
- Runs Scored - The Houston Astros currently stand 1st (93) Overall, with the Seattle Mariners ranking 13th (63) for runs scored.
- Runs Allowed - The Houston Astros are 1st (101) Overall for runs allowed. The Seattle Mariners stand 17th (56) for runs allowed.
- Team Streaks - The Houston Astros have lost their last 7 games. Meanwhile, the Seattle Mariners have won their last 3 games.
- Team Records - The Houston Astros have a 6-10 Overall record (2.5 GB American West Division), with the Seattle Mariners possessing a 7-9 Overall standing (1.5 GB American West Division).
Captain Shady Lines
A broken compass is right at least twice a day.
Avast ye scurvy dogs! The Astros be settin' sail for Seattle's treacherous waters...
With a sorry record of 6-10, they be needin' to turn the tide quick...
But the Mariners be no pushovers with a 7-9 record at home...
Ye best be checkin' SportsBetting3.com to bet on this game...
Review the odds below, but beware mateys, this be a clash of titans...
Will the Astros plunder a victory, or will the Mariners send 'em to Davy Jones' locker?
Best Astros at Mariners Odds
| Underdog Houston Astros | Favorite Seattle Mariners |
|---|---|
| Over | Under |
|---|---|
| Underdog Houston Astros | Favorite Seattle Mariners |
|---|---|
Matchup Odds FAQs
The Seattle Mariners are the -175 moneyline favorite at BetMGM and the Houston Astros are the +145 moneyline underdog at BetMGM.
The best over line is 7.5 -110 runs at BetMGM, which means you risk $110 to win $100 betting the over. The best under line is 7.5 -110 runs at BetMGM, and that means you risk $110 to win $100 betting the under.
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
|
Game |
 BetMGMBet |
|---|---|
Astros
Mariners
4/13/26 4:10pm EDT | +145-175 |
- Houston Astros bettors risk $100 to win $145 at +145 odds. The implied probability for Houston Astros is 40.82%.
- Seattle Mariners bettors risk $100 to win $57.14 at -175 odds. The implied probability for Seattle Mariners is 63.64%.
Houston Astros at Seattle Mariners Prop Bets
| BetMGM Bet |
|
|---|---|
Astros
Mariners
First Team to Score
4/13/26 4:10pm EDT | -115-110Bet |
Astros
Mariners
Tie
1st Inning Winner
4/13/26 4:10pm EDT | +375+250-140Bet |
Astros
Mariners
Tie
First 3 Innings Winner
4/13/26 4:10pm EDT | +200+105+280Bet |
Astros
Mariners
To Extra Innings
4/13/26 4:10pm EDT | Yes +725No -1200Bet |
| BetMGM | |
Astros
Mariners
1st Team to Score Will Win
4/13/26 4:10pm EDT | Yes -250No +190Bet |
Astros
Total Runs
HOU at SEA 4/13/26 4:10pm EDT | 3.5 o +1103.5 u -145Bet |
Mariners
Total Runs
HOU at SEA 4/13/26 4:10pm EDT | 4.5 o +1104.5 u -145Bet |
Houston Astros & Seattle Mariners 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.
Houston Astros World Series Odds|
Team | BetMGM |
|---|---|
| Astros | +4000 Bet |
|
Team | BetMGM |
|---|---|
| Mariners | +1300 Bet |
Houston Astros & Seattle Mariners 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
| Team | W | L | Pct | GB | Home | Away | RS | RA | Diff | Strk | L10 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Seattle Mariners | 10 | 15 | 0.400 | +7.0 | 9-7 | 1-8 | 96 | 95 | +1 | L2 | 4-6 |
| Houston Astros | 9 | 16 | 0.360 | +8.0 | 7-6 | 2-10 | 135 | 150 | -15 | L1 | 3-7 |
How to Bet on the Game
Time needed: 4 minutes.
How to Bet on the Houston Astros vs Seattle Mariners MLB Game
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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 Monday, April 13th, 2026 at 4:10 pm EDT, making sure to enter all your personal details correctly. Don't forget to add your bonus code.
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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.
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Tap to the sportsbook's MLB page, look for the Houston Astros vs Seattle Mariners Game.
Navigate to the sportsbook's MLB page. Next, look for live or upcoming matchups. Select the Houston Astros vs Seattle Mariners Game.
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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 April 13, 2026 MLB Games
- Arizona Diamondbacks vs Baltimore Orioles - 4/13/26 6:35pm EDT
- Washington Nationals vs Pittsburgh Pirates - 4/13/26 6:40pm EDT
- Chicago Cubs vs Philadelphia Phillies - 4/13/26 6:40pm EDT
- Los Angeles Angels vs New York Yankees - 4/13/26 7:05pm EDT
- Miami Marlins vs Atlanta Braves - 4/13/26 7:15pm EDT
- Boston Red Sox vs Minnesota Twins - 4/13/26 7:40pm EDT
- Cleveland Guardians vs St. Louis Cardinals - 4/13/26 7:45pm EDT
- Texas Rangers vs Oakland Athletics - 4/13/26 9:40pm EDT
- New York Mets vs Los Angeles Dodgers - 4/13/26 10:10pm EDT