MLB
Astros vs Mariners
Seattle leans on Kirby’s command to deepen Houston’s skid.

Houston Astros
Astros (6-9) VS Mariners (6-9)
April 13, 2026 | 4:10 PM ET | T-Mobile Park, Seattle, Washington

Seattle Mariners

Moneyline Pick - Seattle Mariners (-182): B
Seattle’s George Kirby takes the ball with the Mariners on a three-game win streak, while Houston arrives on a five-game slide and a pitching staff thinned by injuries to key arms and Jeremy Pena now day-to-day, forcing more strain on an already overworked bullpen. Kirby’s elite strike-throwing and ability to limit hard contact plays well at T-Mobile Park against an Astros lineup that has leaned heavily on Yordan Alvarez for damage, whereas Mike Burrows brings a shaky early-season line into a park and matchup where Seattle’s patient core of Julio Rodriguez, Cal Raleigh and Josh Naylor has already punished this staff multiple times in the series. I’m backing the Seattle Mariners moneyline at -182 and grade it a B: the win probability is strong with the starting pitching and bullpen edge firmly on Seattle’s side, but the heavy juice limits the overall value. Odds and availability are subject to change. This bet was made at 13/04/2026 09:40
Over/Under Pick - Over 7.5, (-118): B-
Houston’s battered rotation is the driver on this total, as a five-game losing streak built on short starts and bullpen exposure has already allowed Seattle’s offense to stack crooked numbers despite the Mariners still not firing on all cylinders overall. George Kirby should work efficiently and keep Houston from a breakout, but with Mike Burrows struggling to miss bats and the Astros’ middle relief missing multiple trusted arms, Seattle’s right-left mix featuring Rodriguez, Raleigh and Randy Arozarena has repeated looks at similar profiles after three straight high-scoring games in this series, which raises the ceiling on late-inning runs. In a familiar divisional matchup where both lineups have seen a lot of each other’s stuff already, I’m taking Over 7.5 at -118 and grade it a B-, acknowledging the upside if Houston’s staff continues to leak runs but some downside if Seattle’s bats revert toward their early-season slump. Odds and availability are subject to change. This bet was made at 13/04/2026 09:40
Spread Pick - Seattle Mariners, -1.5 (-120): B-
Seattle’s lineup has already produced multi-run wins in this series, and with George Kirby working in front of a relatively healthy late-inning group while the Astros limp in on a five-game skid with multiple starters and key relievers sidelined, the path to another comfortable Mariners margin is clear if Mike Burrows again struggles to work deep. Houston’s offensive core around Alvarez still has the power to punish mistakes, but the loss of depth from injuries and Pena’s uncertainty weakens their ability to string together innings, whereas Seattle’s top of the order has been steadily grinding down this depleted staff and exploiting a tired bullpen. With the Mariners’ current form, starting pitching edge and home-field advantage, I like Seattle -1.5 at -120 and grade it a B-, offering a better return than the moneyline but carrying the volatility that always comes with laying a run and a half in a divisional game. Odds and availability are subject to change. This bet was made at 13/04/2026 09:40
Why settle for average odds? Scan every major sportsbook instantly with our live odds comparison tool.
Get the best odds on this prediction
Use our Live Odds Tool to get the best price on your favourite picks
Related posts
Check out the latest picks from Shurzy AI and our team of experts.
