The Mariners took another two steps backwards over the weekend after such a promising start to their week last week. The 12-run outburst on Friday was very good to see but to follow that up by scoring two runs total over the final two games in Chicago was a huge let down. It feels like I write this same bit every week, but the uninspired play across the entire American League means Seattle isn’t really in too much trouble despite its struggles. The M’s are still the favorite to win the division and currently have the third highest playoff odds in the AL. The last time the Mariners faced the Astros, the vibes were in the toilet following a three-game sweep at the hands of the Rangers. Seattle responded by sweeping Houston in four games. The team is in need of some of that schadenfreude this week.
At a GlanceGameTimeMariners StarterAstros StarterMariners Win%Astros Win%Game 1Monday, May 11 | 5:10 pmRHP George KirbyRHP Peter Lambert56.4%43.6%Game 2Tuesday, May 12 | 5:10 pmRHP Bryan WooRHP Tatsuya Imai52.9%47.1%Game 3Wednesday, May 13 | 5:10 pmRHP Bryce MillerRHP Lance McCullers Jr.47.6%52.4%Game 4Thursday, May 14 | 11:10 amRHP Luis CastilloRHP Mike Burrows49.2%50.8%Team OverviewOverviewAstrosMarinersEdgeBatting (wRC+)113 (2nd in AL)104 (3rd in AL)AstrosFielding (FRV)-2 (7th)-13 (15th)AstrosStarting Pitching (FIP-)107 (13th)97 (7th)MarinersBullpen (FIP-)136 (15th)91 (3rd)Mariners
Nothing has gone right for the Astros this year. They’ve been decimated by injuries and have limped along at the bottom of the AL West standings for nearly the entire season. Carlos Correa was the latest star to succumb to a significant injury; he injured his ankle last week and will be out for the season. He joins 14 other players on the IL, the most of any team in the majors. While the lineup hasn’t really been affected by all these absences yet, the pitching staff has been one of the worst in baseball. Hunter Brown, Cristian Javier, and Josh Hader are all working through significant injuries and six other pitchers have been sidelined with minor maladies.
Astros LineupPlayerPositionBatsPAK%BB%ISOwRC+Jose Altuve2BR16319.0%10.4%0.13299Yordan AlvarezDHL18014.4%13.3%0.325188Isaac Paredes3BR14816.2%9.5%0.124111Christian Walker1BR16718.0%9.0%0.242143Cam SmithRFR15827.8%10.1%0.13183Zach Cole (MiLB)LFL3727.0%18.9%0.310138Brice MatthewsCFR9533.7%8.4%0.21293Braden ShewmakeSSL2114.3%0.0%0.450218Christian VázquezCR7418.9%8.1%0.194130
The lone bright spot for the Astros has been their offense. They’ve scored the second most runs in the AL and it doesn’t seem like a fluke. Yordan Alvarez has been one of the best hitters in baseball so far, running a career-high 188 wRC+. Christian Walker has also bounced back after a rough first season in Houston last year; he’s blasted nine home runs this year and is sporting a 143 wRC+. Even though the injury bug has hit the lineup hard, Houston has found enough depth to cover for its absences. Isaac Paredes has looked solid covering third base while Correa was covering shortstop for the injured Jeremy Peña and Brice Matthews and Zach Cole have been solid in the outfield while Jake Meyers and Joey Loperfido have been sidelined.
Stuff+ scores for Mariners starters
BOSTON, MASSACHUSETTS – MAY 01: Mike Burrows #50 of the Houston Astros pitches against the Boston Red Sox during the sixth inning at Fenway Park on May 01, 2026 in Boston, Massachusetts. (Photo by Maddie Meyer/Getty Images) Getty Images
Game 1 Pitching MatchupPitcherIPK%BB%HR/FB%GB%ERAFIPPeter Lambert22.124.7%11.8%0.0%44.6%2.422.82George Kirby5219.1%5.9%8.3%57.6%2.943.44RHP Peter LambertPitchUsage vRHBUsage vLHBVelocityStuff+Whiff+BIP+xwOBAFour-seam42.2%32.9%94.795118480.381Sinker18.1%0.0%94.289Cutter8.6%16.7%92.388Changeup7.8%36.0%88.680Slider23.3%14.4%86.4101Slurve16.4%10.8%81.8100
After struggling to make much of an impact with the Rockies to start his career, Peter Lambert signed a one-year deal with the Yakult Swallows of NPB last year. He didn’t exactly excel, but he showed enough promise outside the oppressive environment in Colorado to earn a minor league deal with the Astros this offseason. He’s been pressed into service thanks to all the injuries Houston has dealt with and he’s looked pretty solid across four starts this year. He developed a straight cutter in Japan and that pitch has been a solid addition to his repertoire. He’s also got an excellent changeup to round out his deep arsenal.
Game 2 Pitching MatchupPitcherIPK%BB%HR/FB%GB%ERAFIPTatsuya Imai (2025-NPB)163.227.8%7.0%4.6%48.3%1.922.01Bryan Woo4720.3%4.3%8.2%30.9%4.023.81
From a previous series preview:
The Astros emerged as the surprising suitors for Tatsuya Imai this offseason, signing him to a three-year deal well below what many were expecting. Perhaps his contract fell short because it’s really hard to figure out his arsenal. There were plenty of questions about how his fastball would play against MLB batters and pitch models had a terrible time trying to figure out his slider. That breaking ball is unique to say the least. The pitch has the least amount of horizontal movement of any slider thrown in the majors, and depending on how he locates it, it can look like a screwball at times. The heater has looked really good too, benefitting from a low arm slot and a lot of cutting action. Imai will also pepper in a splitter, changeup, and curveball to round out his pitch mix, but the fastball and slider are the two primary weapons.
Imai couldn’t work out of the first inning in his last start against the Mariners, walking four and allowing a single hit in just 0.1 innings of work. He was placed on the IL with general fatigue after that start in Seattle and will be activated from that list to make a start on Tuesday.
Game 3 Pitching MatchupPitcherIPK%BB%HR/FB%GB%ERAFIPLance McCullers Jr.3425.0%13.5%16.1%42.7%7.414.81Bryce Miller (2025)90.118.9%8.7%15.5%37.9%5.685.17RHP Lance McCullers Jr.PitchUsage vRHBUsage vLHBVelocityStuff+Whiff+BIP+xwOBAFour-seam3.3%6.5%91.9Sinker57.1%13.5%91.4911001770.349Cutter13.7%40.6%89.194871060.368Changeup16.5%14.5%85.583Curveball9.3%24.9%81.6106151660.323Sweeper35.7%10.5%82.311792760.310
From a previous series preview:
Lance McCullers Jr. finally got back on the big league mound last season after missing more than two years following elbow surgery back in 2023. It wasn’t an easy return to his previous form. He struggled with his command throughout the season and his velocity was down two ticks across the board from where he was sitting way back in ‘22. His pitch mix looked a lot different too, with his sweeper taking the place of his trademark curveball as his preferred breaking ball. Command is usually the last skill to return after major elbow surgery and he’s now three years removed from that procedure. I’m not sure we’ll ever see peak McCullers again, but he’s got the deep repertoire and experience to be a solid starter as long as his health holds up.
The Mariners scored six runs off McCullers in that series in Seattle; he pitched 4.1 innings allowing five hits and two walks.
Game 4 Pitching MatchupPitcherIPK%BB%HR/FB%GB%ERAFIPMike Burrows44.221.6%7.2%14.3%37.8%5.044.65Luis Castillo38.120.8%7.3%12.0%34.1%6.574.56RHP Mike BurrowsPitchUsage vRHBUsage vLHBVelocityStuff+Whiff+BIP+xwOBAFour-seam21.6%33.9%95.010051880.403Sinker24.3%5.4%94.69778940.380Changeup16.4%34.2%87.1861181400.250Curveball16.4%14.0%79.797119660.271Slider21.3%12.5%89.89588800.250
From a previous series preview:
The Astros acquired Mike Burrows in a three-team trade involving the Rays and Pirates this offseason. He was surprisingly solid for Pittsburgh in his first full season in the big leagues, even as he was overshadowed by some of the bigger name pitching prospects that were coming up through their system. Those same prospects gave the Pirates a surplus to deal from and Burrows ended up in Houston. He throws relatively hard and has a plus changeup to keep batters from sitting on his heater. That offspeed pitch is his go-to swing and miss pitch too, though he has a pair of above average breaking balls as well. Because the Pirates treat their pitching prospects so carefully, most of Burrows’s work came in four- or five-inning stints. He’ll need to prove he can work through an opposing lineup a third time to really take a step forward in his development.
Burrows is coming off his best start of the season, a scoreless seven-inning gem against the Reds. In his previous start against the Mariners, he allowed six runs on 11 hits and a walk in six innings of work.
TeamW-LW%Games BehindRun DiffRecent FormAthletics21-190.525-6L-W-W-W-LRangers19-210.4752.0-3W-L-L-W-WMariners19-220.4632.5+2L-W-W-L-LAngels16-250.3905.5-24W-W-L-L-WAstros16-250.3905.5-34W-L-W-L-L
The Athletics maintained their grip on the top of the AL West standings, winning their weekend series against the Orioles. They return home this week to take on the Cardinals. The Rangers managed to quiet the red hot Cubs over the weekend, holding them scoreless across both games on Saturday and Sunday. Texas hosts the Diamondbacks to start this week.