Look, when the Mariners are road favorites against Houston, you know something's cooking. That -143 price tag tells us the market sees Seattle as legitimately better right now, which feels about right given how these franchises have been trending.
The -1.5 run line at plus money for Seattle is where my algorithm gets interested. Houston's been inconsistent at home, and when you're getting enhanced odds on a team the market already favors straight up, that's usually where the value lives. The Astros getting 1.5 runs at -1.5 odds isn't terrible, but I'd rather bet on talent than hope for a close game.
That total sitting at 9 screams "take the under" to me. Both clubs have been playing tighter games lately, and 8:11 PM starts in Houston often see cooler temps and less offensive fireworks than those afternoon slugfests. The math says these lineups should produce around 8.2 runs combined.
My read? The Mariners -1.5 at those odds offers the cleanest path to profit. Seattle's got the better overall roster construction, and when the market hands you a road favorite with run line value, you take it. Not saying it's a lock – nothing ever is – but the numbers point toward a comfortable Mariners win.
| Sportsbook | Spread | Total | Moneyline |
|---|---|---|---|
| DraftKings | Astros +1.5 (-143) | O/U 9 | Astros +119 / Mariners -143 |
| FanDuel | Astros +1.5 (-137) | O/U 8.5 | Astros +124 / Mariners -146 |
| BetMGM | Astros +1.5 (-155) | O/U 9 | Astros +115 / Mariners -140 |
| Pinnacle | Astros +1.5 (-133) | O/U 9 | Astros +126 / Mariners -137 |
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Mariners at Astros is scheduled for Mon, May 11, 8:11 PM ET.
Astros are listed at 1.5 on the spread, with the total set at 9 and a moneyline of 119. Lines come from a five-book consensus (DraftKings, FanDuel, BetMGM, Caesars, Pinnacle) and shift up to game time.
Mariners vs 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 2026-05-11T16:02:18.937Z · Odds shift up to game time. 21+ only. Gamble responsibly. Disclaimer