Houston Astros at Seattle Mariners odds, picks and predictions

Analyzing Sunday’s Houston Astros at Seattle Mariners odds and lines, with MLB expert picks, predictions and best bets.

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The Houston Astros (52-46) and Seattle Mariners (52-48) close out a 3-game series Sunday. First pitch from T-Mobile Park is at 4:10 p.m. ET. Let’s analyze FanDuel Sportsbook’s lines around the Astros vs. Mariners odds and make our expert MLB picks and predictions for the best bets.

Season series: Mariners lead 5-4

The Astros, who are a game ahead of the Mariners for the lead in the AL West, seek a series sweep. After losing back-to-back games before the All-Star Break, they beat Seattle 3-0 on Friday and 4-2 on Saturday, with the Under cashing in both meetings.

The Mariners have now lost 5 straight games and 11 of their last 16. They have scored a combined 5 runs in their last 4 games.

Astros at Mariners projected starters

RHP Ronel Blanco vs. RHP Bryan Woo

Blanco (9-4, 2.56 ERA) makes his 19th start. He has a 0.97 WHIP, 3.5 BB/9 and 8.3 K/9 in 109 innings.

  • Last start: Loss, 6 IP, 2 ER, 2 H, 2 BB, 5 K in 4-2 home loss to Texas Rangers July 14
  • Has allowed 2 ER in each of his 3 July starts and 2 or fewer in 6 of his last 7
  • 2024 vs. Mariners: 0-0, 4.50 ERA (6 IP, 3 ER), 5 H, 2 BB, 6 K in 1 start, a 5-3 home win May 3
  • Career vs. Mariners: 0-1, 5.65 ERA (14 1/3 IP, 9 ER), 1.05 WHIP, 10.7 K/9 in 4 appearances (2 starts)

Woo (3-1, 2.45 ERA) makes his 10th start. He has a 0.89 WHIP, 1.0 BB/9 and 5.9 K/9 in 44 innings.

  • Last start: No-decision, 3 1/3 IP, 4 ER, 9 H, 2 BB, 1 K in 6-5 road loss to Los Angeles Angels July 12
  • Mariners have lost his last 3 starts, after winning his 1st 6
  • Career vs. Astros: 0-0, 1.50 ERA (6 IP, 1 ER), 3 H, 1 BB, 4 K in 1 start, a 3-2 road loss July 8, 2023

Who’s going yard? Here’s a breakdown of today’s best home run props with our top picks. Include the BetMGM bonus code SBWIRE to score a $1,500 first-bet offer.

Astros at Mariners odds

Provided by FanDuel Sportsbook; access USA TODAY Sports Scores and Sports Betting Odds hub for a full list. Lines last updated at 11:12 a.m. ET.

  • Moneyline (ML): Astros -106 (bet $106 to win $100) | Mariners -110 (bet $110 to win $100)
  • Run line (RL)/Against the spread (ATS): Astros -1.5 (+160) | Mariners +1.5 (-194)
  • Over/Under (O/U): 7.5 (O: -102 | U: -120)

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Astros at Mariners picks and predictions

Prediction

Mariners 4, Astros 3

Moneyline

The MARINERS (-110) have not been swept in a series yet this season. They are 30-20 at home this season, even with the 2 losses to start the series.

Houston is still under .500 on the road at 24-25.

Woo has allowed 3 or fewer runs in 8 of his 9 starts this season and 1 or fewer in 6 outings this year.

Blanco has allowed 2 or fewer in 6 of his last 7.

BET MARINERS (-110).

Run line/Against the spread

If you like the Mariners to win the game outright, betting them to cover at -194 doesn’t make sense.

PASS.

Over/Under

Of the 9 games between Houston and Seattle this season, only 1 has had more than 6 total runs.

The Astros’ last 4 games and 6 of their last 9 have not reached 8 total runs.

The Mariners have had 4 straight games with totals Under 8.

BET UNDER 7.5 (-120).

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