The Mariners will play the Astros on Sunday, August 20th, 2023. Your timezone's first pitch time is 1:05 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 Seattle Mariners have a 96.67 power ranking. The power ranking for the Houston Astros is 95.67.
- Visiting Seattle Mariners - The Seattle Mariners have a 34-27 record as a visiting team, ranking them 6th Overall for visiting team wins.
- Home Houston Astros - The Houston Astros have a 33-28 record as a home team. They rank 8th for home team wins in the Overall standings.
- Runs Scored - The Seattle Mariners currently stand 13th (571) Overall, with the Houston Astros ranking 6th (602) for runs scored.
- Runs Allowed - The Seattle Mariners are 26th (500) Overall for runs allowed. The Houston Astros stand 21st (521) for runs allowed.
- Team Streaks - The Seattle Mariners have won their last 5 games. Meanwhile, the Houston Astros have lost their last 2 games.
- Team Records - The Seattle Mariners have a 68-55 Overall record (5.0 GB American West Division), with the Houston Astros possessing a 70-54 Overall standing (2.5 GB American West Division).
Captain Shady Lines
A broken compass is right at least twice a day.
Avast ye scallywags! The Mariners head to Houston on Sunday, August 20th... SportsBetting3.com warns ye to bet on this game at yer own peril... With a 68-55 record, these Mariners lack the fierce pirate spirit we need!
Arrr, the Astros hold a 70-54 record, aye... Their 0.565 win percentage be impressive, no doubt... But do not despair, me hearties, for we still have a chance!
In their last 10 games, the Mariners be standin' tall at 7-3, aye... And the Astros, well, they be stuck at 5-5... A glimmer of hope shines through for us!
So me fellow pirates, review the odds below and decide where to make yer wager... But take heed, for this be a treacherous sea we sail... May luck be on our side as we face the mighty Astros on their home turf!
Best Mariners at Astros Odds
| Underdog Seattle Mariners | Favorite Houston Astros |
|---|---|
| Over | Under |
|---|---|
| Underdog Seattle Mariners | Favorite Houston Astros |
|---|---|
Matchup Odds FAQs
The Houston Astros are the -182 moneyline favorite at BetRivers and the Seattle Mariners are the +155 moneyline underdog at BetRivers.
The best over line is 8.5 -120 runs at BetMGM, which means you risk $120 to win $100 betting the over. The best under line is 9 -121 runs at BetRivers, and that means you risk $121 to win $100 betting the under.
The Houston Astros are -1.5 +116 run line favorites at BetRivers, while the Seattle Mariners are +1.5 -135 run line underdogs at BetMGM.
MLB Odds Example
|
Game |
 BetMGMBet |
|---|---|
Mariners
Astros
8/20/23 1:05pm EDT | +150-185 |
- Seattle Mariners bettors risk $100 to win $150 at +150 odds. The implied probability for Seattle Mariners is 40%.
- Houston Astros bettors risk $100 to win $54.05 at -185 odds. The implied probability for Houston Astros is 64.91%.
Seattle Mariners at Houston Astros Prop Bets
| BetMGM Bet |
|
|---|---|
Mariners
Astros
First Team to Score
8/20/23 1:05pm EDT | -115-110Bet |
Mariners
Astros
To Extra Innings
8/20/23 1:05pm EDT | Yes +750No -1200Bet |
Mariners
Astros
1st Team to Score Will Win
8/20/23 1:05pm EDT | Yes -250No +190Bet |
Astros
Total Runs
SEA at HOU 8/20/23 1:05pm EDT | 4.5 o -1304.5 u +100Bet |
| BetMGM | |
Mariners
Total Runs
SEA at HOU 8/20/23 1:05pm EDT | 3.5 o -1253.5 u -105Bet |
Emerson Hancock
Strikeouts Thrown
SEA at HOU 8/20/23 1:05pm EDT | 3.5 o -1403.5 u +105Bet |
Hunter Brown
Strikeouts Thrown
SEA at HOU 8/20/23 1:05pm EDT | 6.5 o +1006.5 u -130Bet |
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|
Team | BetMGM |
 BetRivers |
|---|---|---|
| Mariners | +2200 Bet | +2200 Bet |
|
Team | BetMGM |
BetRivers |
|---|---|---|
| Astros | +1000 Bet | +800 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
| Team | W | L | Pct | GB | Home | Away | RS | RA | Diff | Strk | L10 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| x - Houston Astros | 90 | 72 | 0.556 | +14.0 | 39-42 | 51-30 | 827 | 698 | +129 | W4 | 6-4 |
| e - Seattle Mariners | 88 | 74 | 0.543 | +16.0 | 45-36 | 43-38 | 758 | 659 | +99 | W1 | 4-6 |
How to Bet on the Game
Time needed: 4 minutes.
How to Bet on the Seattle Mariners vs Houston Astros 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 Sunday, August 20th, 2023 at 1:05 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 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.
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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.