| Date | News | Comment |
| May 20 2024 | The Mets optioned Hartwig to Triple-A Syracuse on Monday. | ROTOWIRE RECOMMENDS: Hartwig's latest stint in the big leagues lasted less than a week, and he allowed four runs (three earned) over 3.2 relief innings. He's clearing out to make room for Tylor Megill's return from the injured list. |
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| May 15 2024 | The Mets recalled Hartwig from Triple-A Syracuse on Wednesday. | ROTOWIRE RECOMMENDS: Hartwig has yielded two runs over three innings covering two relief appearances with the Mets this season. He'll provide the bullpen with a fresh arm. |
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| Apr 22 2024 | The Mets optioned Hartwig to Triple-A Syracuse on Monday. | ROTOWIRE RECOMMENDS: He'll cede his spot on the 26-man active roster to Sean Reid-Foley (shoulder), who was reinstated from the 15-day injured list. Hartwig has permitted a pair of runs over three innings covering two relief appearances with the Mets this season. |
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| Apr 21 2024 | Hartwig was recalled from Triple-A Syracuse on Sunday, Tim Healey of Newsday reports. | ROTOWIRE RECOMMENDS: The right-hander was demoted to Triple-A on Wednesday but will quickly rejoin the big club since Brooks Raley (elbow) landed on the injured list. Hartwig delivered a scoreless frame in his lone outing of the season for the Mets. |
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