The Astros optioned Alexander to Triple-A Sugar Land on Wednesday.
Alexander saved the Astros' bullpen Tuesday against the Rangers by managing to go six innings despite allowing eight runs in the opening frame. Nevertheless, he will head back to the minors as Houston adds Logan VanWey to the bullpen.
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Astros' Jason Alexander: Done in by eight-run first inning
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Alexander (1-1) took the loss against Texas on Tuesday, allowing nine runs on six hits and two walks while striking out four batters over six innings.
Alexander could have had a very short outing Tuesday, as he gave up eight runs on five hits, two walks and a hit-by-pitch in the first inning. To his credit, he remained in the game and at least spared Houston's bullpen, managing to finish six frames on 100 pitches while allowing just one baserunner -- on a solo homer by Evan Carter -- after the disastrous first inning. Still, Alexander's ERA took a big hit and jumped to an ugly 9.33 through 18.1 innings this season. Houston's staff is dealing with multiple injuries, so Alexander could continue to work as a starter, though that may depend on when Lance McCullers (shoulder) is ready to return.
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Astros' Jason Alexander: Nabbing another start
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Alexander is slated to start Tuesday's game against the Rangers in Arlington.
Called upon to make a short-notice start last Tuesday against the Twins after Lance McCullers (shoulder) was scratched and later moved to the injured list, Alexander took the opportunity and ran with it. He struck out four and yielded just five baserunners over six scoreless innings en route to claiming his first big-league win of the season. The right-hander will be rewarded with a second start, and Alexander could hold down a spot in Houston's six-man rotation until the pitching staff reclaims some health.
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Astros' Jason Alexander: Tosses six scoreless Tuesday
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Alexander (1-0) earned the win Tuesday against the Twins, allowing four hits and one walk while striking out four over six scoreless innings.
After being called up from Triple-A Sugar Land on Monday, Alexander was pressed into a start as a result of Lance McCullers being scratched, and the 33-year-old impressed by keeping Minnesota off the board across six innings. The right-hander threw 50 of his 80 pitches for strikes and worked efficiently despite recording just one 1-2-3 inning, never allowing multiple baserunners in a frame. Entering Tuesday, Alexander had allowed five earned runs across his two MLB appearances this season, though he did post a respectable 3.66 ERA in 14 appearances for Houston during the 2025 season.
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Astros' Jason Alexander: Pressed into starting duty
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Alexander will start Tuesday's game against the Twins, Matt Kawahara of the Houston Chronicle reports.
The right-hander was called up from Triple-A Sugar Land on Monday and was expected to provide some length out of the bullpen, but he'll instead make a start Tuesday after Lance McCullers (undisclosed) was scratched. Alexander was a decent swingman for Houston last year (3.66 ERA in 14 appearances) but has surrendered 10 earned runs across his two big-league outings this season.
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Astros' Jason Alexander: Back in minors
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The Astros optioned Alexander to Triple-A Sugar Land on Wednesday.
Alexander was recalled from Triple-A on Tuesday, but he'll head back down after giving up five earned runs over 4.1 innings during Wednesday's loss to the Dodgers. The 33-year-old righty owns a 4.97 ERA and 1.52 WHIP through 29 innings (six starts) in the minors this season and could be called upon to make more appearances in the majors this year, especially considering the number of injuries that have already hit Houston's pitching staff.
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Astros' Jason Alexander: Back up with Houston
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The Astros recalled Alexander from Triple-A Sugar Land on Monday, Julia Morales of Space City Home Network reports.
Alexander is returning to Houston after departing for Triple-A Sugar Land on Sunday. The move comes after Ryan Weiss was optioned to Triple-A Sugar Land on Monday night.
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Astros' Jason Alexander: Heads back to Sugar Land
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The Astros optioned Alexander to Triple-A Sugar Land on Friday.
Alexander's stay with Houston lasted just one day, as the right-hander was summoned from Triple-A to serve as the 27th man for the Astros' twin bill with the Orioles. He came on in relief in the first game of the twin bill, striking out one and allowing five earned runs on two hits and three walks over two innings in the Astros' 10-3 loss.
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Astros' Jason Alexander: Cut from big-league camp
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The Astros optioned Alexander to minor-league camp Sunday, Brian McTaggart of MLB.com reports.
The veteran right-hander had a 4.77 ERA, 1.37 WHIP and 65:26 K:BB across 77.1 innings between Atlanta and Houston last season but was never a likely bet to crack the Astros' Opening Day roster. Alexander is likely to work out of the rotation at Triple-A Sugar Land to begin 2026 and could get another look in the majors as a swingman at some point this year.
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Astros' Jason Alexander: Hit hard in spring debut
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Alexander allowed four runs on five hits and a walk across two-thirds of an inning in Tuesday's Grapefruit League matchup with the Mets. He struck out one.
It was a disastrous start to the spring for Alexander, who gave up back-to-back one-out singles before Mike Tauchman smacked a three-run homer in the first inning. Alexander then gave up a solo shot to Ronny Mauricio with two outs, followed by a single and a walk, before he was ultimately pulled. Alexander served as a swingman for Houston after he was acquired off waivers from the A's in May. The right-hander posted a 4.77 ERA with a 1.37 WHIP and 65:26 K:BB across 77.1 innings between the Astros and Athletics. Alexander will likely start the year with Triple-A Sugar Land if he can't crack the Opening Day bullpen.
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Astros' Jason Alexander: Can't complete five frames Friday
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Alexander didn't factor into the decision in Friday's 4-3 loss to the Angels, giving up two runs on four hits and a walk over 4.2 innings. He struck out four.
The 32-year-old righty has crashed back to earth after blanking the Blue Jays over seven innings back on Sept. 10. Alexander has failed to complete five innings in any of his last three starts, stumbling to an 8.44 ERA, 1.78 WHIP and 10:3 K:BB in 10.2 innings while serving up four homers, including a Mike Trout solo shot Friday. The Astros are on the brink of being eliminated from the playoffs -- they need to win their last two games, and have either the Guardians or Tigers lose both their final contests -- but if they squeak in, it's not clear what role Alexander might have on the postseason staff. He wraps up the regular season having posted a 3.66 ERA, 1.25 WHIP and 60:21 K:BB over 71.1 innings for Houston.
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Astros' Jason Alexander: Chased in second inning
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Alexander (4-2) allowed seven runs on seven hits and a walk while striking out one over 1.1 innings to take the loss versus the Mariners on Sunday.
The Astros needed a good start, and Alexander was unable to deliver. Most of the damage came on a grand slam by J.P. Crawford and a two-run home run by Cal Raleigh. This was Alexander's worst performance as an Astro and just the second time he's allowed five or more runs since he was plucked off waivers from the Athletics. Overall, Alexander has a 4.83 ERA, 1.39 WHIP and 61:25 K:BB through 72.2 innings across 17 appearances (12 starts) this season. The right-hander is tentatively projected for a road start versus the Angels in his last outing of the regular season.
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Astros' Jason Alexander: Falls short of five-inning mark
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Alexander allowed three runs (one earned) on five hits and a walk while striking out five over 4.2 innings in a no-decision versus the Rangers on Monday.
Alexander allowed all three runs in the fifth inning, allowing Texas to briefly gain a 3-2 lead before Zach Cole restored Houston's advantage a half-inning later. This was the first time since July 29 that Alexander failed to finish five innings, as he's largely been a reliable part of the Astros' rotation in the second half. He's now at a 4.04 ERA, 1.30 WHIP and 60:24 K:BB through 71.1 innings over 16 appearances (11 starts) between the Astros and the Athletics this year. He's tentatively projected for a home start versus the Mariners this weekend.
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Astros' Jason Alexander: Fans six over five frames
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Alexander allowed three runs on six hits and two walks while striking out six batters over five innings in a no-decision against the Yankees on Wednesday.
Alexander wasn't dominant Wednesday, and all three runs he allowed scored on a pair of Yankees homers. Nonetheless, he kept Houston within arm's length, which proved critical when the Astros mounted a comeback over the sixth through eighth frames. Alexander has now given up three or fewer runs in seven straight outings, posting a 2.79 ERA and 1.11 WHIP with a 38:10 K:BB across 38.2 innings during that span. That's earned him a spot in the rotation for now, while Lance McCullers has been moved to the bullpen.
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Astros' Jason Alexander: Remaining in rotation
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Alexander is slated to start Wednesday's game against the Yankees in Houston, Chandler Rome of The Athletic reports.
When he was initially called up from Triple-A Sugar Land on July 24, Alexander looked to be a temporary placeholder in the rotation until the Astros returned multiple rehabbing starting pitchers from the injured list. Much to the delight of the Astros, Alexander has pitched well enough to maintain his spot in the rotation, even though Spencer Arrighetti, Cristian Javier and Luis Garcia have since made their way back from the shelf. Houston has opted to move the struggling Lance McCullers to the bullpen to keep Alexander in the fold as a starter, and the journeyman right-hander should continue making regular turns through the six-man rotation throughout September so long as his performance warrants the opportunity. Since his call-up from Sugar Land, Alexander has produced a 3.18 ERA, 1.21 WHIP and 35:10 K:BB in 39.2 innings across seven starts.
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Astros' Jason Alexander: Strong again in fourth win
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Alexander (4-1) allowed two runs on eight hits and a walk while striking out three over 5.1 innings to earn the win over the Orioles on Thursday.
Alexander fell short of a quality start for the first time in his four outings in August, but he still did well enough to secure his third win of the month. Dylan Beavers produced both runs for Baltimore with a solo home run in the second inning and an RBI fielder's choice in the sixth. While Alexander has had some inconsistent stretches this year, he's doing all he can to keep a spot in the Astros' rotation with his recent strong play. He's at a 4.59 ERA, 1.37 WHIP and 38:19 K:BB through 49 innings over 12 appearances (seven starts) between the Astros and the Athletics in 2025. Alexander could face additional challenges for a starter role soon, as Lance McCullers (finger) is set to come of the injured list Friday while Luis Garcia (elbow) could follow sometime next week.
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Astros' Jason Alexander: Pitches well again Saturday
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Alexander completed six innings against Baltimore on Saturday, allowing two runs on three hits and no walks while striking out six batters in a no-decision.
Alexander wasn't able to record a third straight scoreless outing, but he did notch his third consecutive quality start. His six punchouts also tied a season-high mark, and he didn't walk a batter for the first time among his six starts (he's also come out of the bullpen five times). Alexander has impressed in a starting role this season, registering a 2.86 ERA with a 28:11 K:BB across 34.2 innings. The Astros are close to getting starters Lance McCullers (finger) and Luis Garcia (elbow) back from injuries, and despite the recent run of success, it remains to be seen if Alexander will be able to keep a rotation spot when those hurlers return.
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Astros' Jason Alexander: Blanks Yankees for third win
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Alexander (3-1) earned the win Sunday over the Yankees, allowing one hit and three walks over six scoreless innings. He struck out three.
Alexander has been stellar of late, turning in back-to-back scoreless outings while allowing just four hits over 12 innings in that span. Overall, the 32-year-old right-hander sports a 5.02 ERA with a 1.46 WHIP and 29:18 K:BB across 37.2 innings between the Astros and A's this season. Despite his recent stretch, Alexander could soon be relegated to a bullpen role with Cristian Javier (elbow) slated to rejoin the rotation Monday.
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Astros' Jason Alexander: Will start Sunday
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Alexander will start in Sunday's series finale against the Yankees, Julia Morales of AT&T SportsNet Southwest reports.
Even with Cristian Javier (elbow) and other Houston starters nearing a return from the injured list, Alexander will get at least one more turn in the rotation. In five appearances (four starts) with the Astros this season, Alexander has a 2-1 record with a 3.16 ERA, 1.32 WHIP and 21:10 K:BB across 25.2 innings.
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Astros' Jason Alexander: Receiving another start
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Alexander will start Tuesday's game against the Nationals in Houston.
Alexander is likely to be optioned to Triple-A Sugar Land or moved to the bullpen once the Astros get one or two of their four rehabbing starters (Spencer Arrighetti, Cristian Javier, Luis Garcia and J.P. France) back from the injured list, but until then, he should maintain a spot in the rotation. The southpaw will pick up his second straight start despite struggling in a loss to the Athletics following his call-up from Triple-A on Thursday, when he was charged with five earned runs on 11 hits and two walks over six innings.
