Seattle Mariners vs Houston Astros

8:11 PM ET · MLB · May 13, 2026

Preview

Look, I've been crunching the numbers on this AL West showdown, and the line tells an interesting story. Seattle opened as road favorites at -131, which immediately caught my attention – the market clearly respects what the Mariners are bringing to Houston.

That -1.5 spread is essentially asking if Seattle can win by multiple runs in what's traditionally been a hostile environment. The juice suggests the books are slightly nervous about laying this number, but they're still asking you to believe the Mariners have separated themselves from their division rivals.

The total sitting at 9 is conservative for Minute Maid Park, especially in May when the weather's warming up. Both lineups have shown pop this season, and I'm seeing value in challenging that under assumption. These teams know each other inside and out, which often leads to tactical adjustments that favor pitching.

My read? The market's giving Seattle proper respect, but that -131 moneyline feels about right mathematically. I'm not seeing obvious value on either side there. The spread's the interesting play – Houston's been scrappy at home, and that extra half-run cushion could matter in a tight divisional game.

I'm leaning toward the Astros getting the runs and possibly taking a small position on the under. Sometimes the most obvious mathematical play isn't where the edge lies.

Odds Comparison

SportsbookSpreadTotalMoneyline
DraftKingsHouston Astros +1.5 (-149)O/U 9Houston Astros +109 / Seattle Mariners -131
FanDuelHouston Astros +1.5 (-152)O/U 9Houston Astros +106 / Seattle Mariners -124
BetMGMHouston Astros +1.5 (-155)O/U 9Houston Astros +105 / Seattle Mariners -125
PinnacleHouston Astros +1.5 (-143)O/U 9Houston Astros +114 / Seattle Mariners -123

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Frequently Asked Questions

What time does Seattle Mariners vs Houston Astros start?

Seattle Mariners at Houston Astros is scheduled for Wed, May 13, 8:11 PM ET.

What's the line on Seattle Mariners vs Houston Astros?

Houston Astros are listed at 1.5 on the spread, with the total set at 9 and a moneyline of 109. Lines come from a five-book consensus (DraftKings, FanDuel, BetMGM, Caesars, Pinnacle) and shift up to game time.

Where can I bet on Seattle Mariners vs Houston Astros?

Seattle Mariners vs Houston Astros is offered at every major US sportsbook — DraftKings, FanDuel, BetMGM, Caesars, and ESPN BET — plus the sharp book Pinnacle. Use the odds comparison table above to find the best price; lines often diverge by 5–15 cents on moneylines and a half-point on spreads.

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Generated 2026-05-13T16:04:51.243Z · Odds shift up to game time. 21+ only. Gamble responsibly. Disclaimer