Geoff Hartlieb - MLB News, Rumors, & Updates

Sent outright to minors The Athletics outrighted Hartlieb to Triple-A Las Vegas on Thursday.

Impact The move clears a spot on the 40-man roster. Hartlieb got into 18 games for the Athletics this season, logging a 4.82 ERA and 22:14 K:BB over 28 frames. The 32-year-old has been outrighted before, so Hartlieb could choose to decline the assignment and become a free agent.

1 DAY AGO • ROTOWIRE

Walton homers and Bolte has 4 hits to lead the Athletics to a 7-3 victory over the Angels

Donovan Walton hit a three-run homer and rookie Henry Bolte had his first four-hit game to help the Athletics beat the Los Angeles Angels 7-3 on Wednesday night

SEPTEMBER 24 • Associated Press

Springs throws 7 shutout innings, Muncy homers as A's beat Mariners 6-2

Jeffrey Springs pitched seven scoreless inning, Max Muncy homered for the second straight day and the Athletics beat the Seattle Mariners 6-2 on Saturday night

SEPTEMBER 6 • Associated Press

Added to Athletics bullpen The Athletics selected Hartlieb's contract from Triple-A Las Vegas on Wednesday.

Impact Hartlieb has authored a 6.08 ERA and 6:9 K:BB over 13.1 innings covering eight outings with the Athletics this season, but he's pitched well in a tough environment in Las Vegas, posting a 3.35 ERA and 53:15 K:BB in 48.1 frames. He'll give the A's a fresh bullpen arm.

SEPTEMBER 2 • ROTOWIRE

Sent outright to Triple-A The Athletics outrighted Hartlieb to Triple-A Las Vegas on Wednesday.

Impact Hartlieb has the ability to decline the outright assignment and elect free agency, but he already accepted an outright assignment earlier this month and could do so again. The reliever has allowed nine runs with a 6:9 K:BB over 13.1 frames during his time with the Athletics this season.

JULY 30 • ROTOWIRE

Designated for assignment Hartlieb was designated for assignment by the Athletics on Sunday, Jason Burke of Roundtable.io reports.

Impact Hartlieb had his contract selected from Triple-A Las Vegas on July 18, surrendering four runs on six hits and six walks while striking out three batters over 4.2 innings in four appearances with the big-league club following his promotion. The team acquired right-handed reliever Scott Blewett from the Cardinals on Sunday, and he'll replace Hartlieb on the 40-man roster. If Hartlieb goes unclaimed on waivers, he'll likely report to Triple-A Las Vegas.

JULY 27 • ROTOWIRE

A's trade Civale to Cubs in exchange for Minor League righty Moffett WEST SACRAMENTO, Calif. -- The Athletics selected right-handed pitcher Geoff Hartlieb from Triple-A Las Vegas and placed right-handed pitche...

JULY 18 • MLB.COM

Back in majors The Athletics selected Hartlieb's contract from Triple-A Las Vegas on Saturday.

Impact With Justin Sterner (knee) headed for the injured list, the A's will turn to Hartlieb to provide depth to their bullpen. The 32-year-old righty will presumably be limited to middle-relief duty after giving up five earned runs in 8.2 innings during a stint with the big club in late June.

JULY 18 • ROTOWIRE

Outrighted to Triple-A Hartlieb cleared waivers Saturday and was outrighted to Triple-A Las Vegas by the Athletics.

Impact Hartlieb was DFA'd by the Athletics on Friday, but he will stay in the organization in Triple-A. He has spent the majority of the 2026 season with Las Vegas, where he has a 3.48 ERA, 1.39 WHIP and 41:10 K:BB across 33.2 innings (16 games, three starts).

JULY 4 • ROTOWIRE

Jettisoned by A's The Athletics designated Hartlieb for assignment Friday.

Impact Both Hartlieb and Krook were DFA'd by the Athletics in order to make room on the 40-man roster for Jose Suarez (paternity) and Mark Leiter (hip). Hartlieb was called up from Triple-A Las Vegas on June 20 and appeared in four major-league games for the A's, allowing five runs on 11 hits and three walks while striking out three across 8.2 innings. Hartlieb will have the opportunity to explore his next options if he clears waivers.

JULY 3 • ROTOWIRE

Guzman, Peraza and O'Hoppe deliver late in Angels' 5-2 win over Athletics

Denzer Guzman hit a tiebreaking single with two outs in the seventh inning that sent the Los Angeles Angels to a 5-2 victory over the Athletics

JUNE 28 • Associated Press

Athletics score 4 times with 2 out in the 9th inning, rally to beat the Giants 9-6

Jonah Heim’s RBI single tied the game, Lawrence Butler followed with a go-ahead RBI hit and the Athletics scored four times with two out in the ninth inning Thursday, rallying for...

JUNE 25 • Associated Press

Joins big-league bullpen The Athletics recalled Hartlieb from Triple-A Las Vegas on Saturday, Martin Gallegos of MLB.com reports.

Impact With Mark Leiter (hip) headed for the injured list, the A's will turn to Hartlieb to plug the holes in their bullpen. The 32-year-old righty has spent the entire season at Las Vegas, posting a 3.48 ERA and 1.39 WHIP across 33.2 innings in the hitter-friendly Pacific Coast League. He's likely set for middle-relief work as long as he's in the majors.

JUNE 20 • ROTOWIRE

Cut from big-league camp The Athletics reassigned Hartlieb to minor-league camp Monday.

Impact Hartlieb had been attending big-league camp as a non-roster invitee, but any hope he had of being part of the Athletics' Opening Day bullpen ended after he allowed eight runs (seven earned) over 2.1 innings across four Cactus League appearances. The 32-year-old is likely to serve as organizational relief depth at the Triple-A level throughout the 2026 season.

MARCH 9 • ROTOWIRE

Latches on with Athletics The Athletics signed Hartlieb to a minor-league contract Wednesday.

Impact Hartlieb was torched for eight runs over 3.1 innings during his brief time in the majors in 2025, but he boasted a 62:17 K:BB over 53.1 frames at the Triple-A level. The right-handed reliever will likely begin the 2026 campaign in the bullpen at Triple-A Las Vegas.

NOVEMBER 20, 2025 • ROTOWIRE

Catches on with K.C. Hartlieb signed a minor-league contract with the Royals on Wednesday.

Impact After being released from his minor-league deal with Detroit last week, Hartlieb quickly caught on with a new organization, his third stop of the season. Hartlieb previously made four appearances in the big leagues this season between the Yankees and Tigers, giving up eight earned runs over 3.1 innings.

AUGUST 28, 2025 • ROTOWIRE

Catches on with K.C. Hartlieb signed a minor-league contract with the Royals on Wednesday.

AUGUST 28, 2025 • ROTOWIRE

Outrighted to Triple-A The Tigers outrighted Hartlieb to Triple-A Toledo on Tuesday.

Impact Hartlieb had been removed from the Tigers 40-man roster and has passed through waivers. He has the ability to decline the outright assignment and elect free agency, but it's uncertain what the reliever's plans are.

JULY 30, 2025 • ROTOWIRE

DFA'd by Tigers The Tigers designated Hartlieb for assignment Saturday.

Impact After making two appearances with the Tigers and giving up two runs over two innings, Hartlieb will now be cast off the 40-man roster. Luke Jackson, who signed an MLB deal with Detroit on Saturday, will claim the open spot in the bullpen.

JULY 26, 2025 • ROTOWIRE

Added to roster The Tigers selected Hartlieb's contract from Triple-A Toledo on Thursday.

Impact Hartlieb inked a minor-league contract with the Tigers earlier this month and is up with the big club after 2.1 perfect innings with four strikeouts at Toledo. The 31-year-old has managed just a 7.92 ERA over 66 career relief outings at the big-league level.

JULY 24, 2025 • ROTOWIRE

Detroit Tigers sign six-year MLB reliever Geoff Hartlieb to minor league contract Detroit Tigers reliever Geoff Hartlieb has pitched for five teams in his six-year MLB career, including two games for the New York Yankees i...

JULY 19, 2025 • FREEP.COM

Connects with Detroit on MiLB deal Hartlieb signed a minor-league contract with the Tigers on Saturday.

Impact Hartlieb made his organizational debut at Triple-A Toledo on Sunday, tossing 1.1 scoreless innings in a relief appearance. The 31-year-old righty had previously spent the entire 2025 season with the Yankees, making two appearances in the majors and 24 appearances at Triple-A Scranton/Wilkes-Barre.

JULY 14, 2025 • ROTOWIRE

Tigers add discarded Yankees pitcher on a minor-league deal after recent DFA The Tigers claimed reliever Geoff Hartlieb after 1 1/3 blowup innings with the Yankees and subsequent DFA.

JULY 14, 2025 • MOTORCITYBENGALS.COM

Yankees' pitcher has now asked out of his New York contract twice in two weeks | Sporting News Geoff Hartlieb is stuck in a loop.

JULY 12, 2025 • SPORTINGNEWS.COM

Elects free agency Hartlieb elected free agency Friday.

Impact Hartlieb was designated for assignment Wednesday and will look for a new home after choosing free agency. The 31-year-old stumbled to a 40.50 ERA in two appearances with the Yankees this season, but he logged a much better 3.34 ERA in 35 innings at Triple-A Scranton/Wilkes-Barre.

JULY 11, 2025 • ROTOWIRE

GEOFF HARTLIEB NEWS

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Walton homers and Bolte has 4 hits to lead the Athletics to a 7-3 victory over the Angels

Springs throws 7 shutout innings, Muncy homers as A's beat Mariners 6-2

Guzman, Peraza and O'Hoppe deliver late in Angels' 5-2 win over Athletics

Athletics score 4 times with 2 out in the 9th inning, rally to beat the Giants 9-6