Petersen gave up a hit and struck out one in a scoreless two-thirds of an inning Friday to record his fifth hold of the season in a win over the Mets. The right-hander got the final two outs in the eighth inning with the Marlins clinging to a 2-1 lead, before he handed the ball off to closer Pete Fairbanks for the ninth. Petersen's five holds are second on the team behind lefty Andrew Nardi's seven, and the right-hander has a 3.93 ERA, 1.15 WHIP and 19:7 K:BB through 18.1 innings on the year over 17 appearances.
Michael Petersen: Everything you need to know
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Status
ACTIVESTATS
Michael Petersen Game Log 2026
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Regular SeasonDateOppResultIPKBBHBPCGSHOHRER6/2W 7-31.0200001006/1W 7-31.0110000005/29L 9-71.0100000005/27L 2-10.2010001115/240-01.1200000005/22W 2-10.2100001005/19L 8-41.1120000005/15L 7-21.1100000005/9W 8-70.2000004335/7W 4-31.0100000005/5L 9-71.0200000004/28W 2-10.1000003114/27L 5-41.1210000004/22W 4-11.0300000004/19W 5-31.2100001114/14L 6-52.0100001004/11L 6-11.0000000004/8W 7-41.0200002004/4L 9-71.0030001324/3L 8-21.0110001113/30L 9-41.0100000003/29W 4-31.020000000
Regular Season Totals 20.325900016109
Michael Petersen Splits 2026
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SplitsGSIPWLERAKBBHBPCGHRERSVOSAVGHR
Overall 023.1110.02590016109110.1901Home 011.2100.016200844110.1900Away 011.2010.09700865000.1901Night 013.2010.015500943110.1880Day 09.2100.010400766000.1941vs Lefty 00.0000.0157001260000.2351vs Righty 00.0000.010200440000.1210March 02.0100.03000000000.0000April 010.1010.010500965110.2251May 09.0000.09300644000.1940June 02.0000.03100100000.1430Opponent vs BAL 0 2.0 0 0 0.0 3 0 0 0 0 0 0 0 0 0.000 0 vs TB 0 1.1 0 0 0.0 1 0 0 0 0 0 0 0 0 0.000 0 vs NYY 0 2.0 0 1 0.0 1 4 0 0 2 4 3 0 0 0.250 1 vs TOR 0 0.2 0 0 0.0 0 1 0 0 1 1 1 0 0 0.333 0 vs DET 0 1.0 0 0 0.0 0 0 0 0 0 0 0 0 0 0.000 0 vs CIN 0 1.0 0 0 0.0 2 0 0 0 2 0 0 1 1 0.400 0 vs MIL 0 1.2 0 0 0.0 1 0 0 0 1 1 1 0 0 0.167 0 vs WSH 0 2.2 0 0 0.0 3 1 0 0 5 3 3 0 0 0.385 0 vs NYM 0 3.0 0 0 0.0 4 0 0 0 1 0 0 0 0 0.111 0 vs ATL 0 3.1 0 0 0.0 2 2 0 0 1 0 0 0 0 0.091 0 vs CWS 0 1.0 0 0 0.0 1 0 0 0 0 0 0 0 0 0.000 0 vs LAD 0 1.2 0 0 0.0 2 1 0 0 3 1 1 0 0 0.375 0 vs COL 0 1.0 1 0 0.0 2 0 0 0 0 0 0 0 0 0.000 0 vs STL 0 1.0 0 0 0.0 3 0 0 0 0 0 0 0 0 0.000 0 Venue @ Atlanta 0 2.0 0 0 0.0 1 0 0 0 1 0 0 0 0 0.143 0 @ Tampa Bay 0 1.1 0 0 0.0 1 0 0 0 0 0 0 0 0 0.000 0 @ Detroit 0 1.0 0 0 0.0 0 0 0 0 0 0 0 0 0 0.000 0 @ Washington 0 2.0 0 0 0.0 3 1 0 0 1 0 0 0 0 0.143 0 @ Los Angeles 0 1.2 0 0 0.0 2 1 0 0 3 1 1 0 0 0.375 0 @ New York 0 1.0 0 0 0.0 1 0 0 0 0 0 0 0 0 0.000 0 @ Toronto 0 0.2 0 0 0.0 0 1 0 0 1 1 1 0 0 0.333 0 @ Miami 0 11.2 1 0 0.0 16 2 0 0 8 4 4 1 1 0.190 0
Michael Petersen Player Profile
Career History
Michael Petersen: Breaking News
Records first save of season
Petersen earned the save Wednesday against the Reds with a scoreless inning, giving up two hits and striking out two. Petersen entered the game with a three-run lead, and while he allowed back-to-back singles to Tyler Stephenson and Noelvi Marte, he ultimately got the job done. Petersen recorded the final out with runners on second and third when he struck out Matt McLain for his first save of the season. The 31-year-old right-hander has a 5.40 ERA and 6:4 K:BB through five innings to begin the season, and he'll revert to lower-leverage usage once closer Pete Fairbanks (personal) returns to the Marlins.
Will begin season in majors
Petersen has claimed a spot in the Marlins' Opening Day bullpen, Christina De Nicola of MLB.com reports. The 31-year-old right-hander did enough this spring to stick around the 26-man roster, producing a 3.12 ERA and 7:3 K:BB over 8.2 Grapefruit League innings. Petersen should handle a low-leverage role after contributing a 4.00 ERA, 1.39 WHIP and 17:7 K:BB in 18 big-league innings last season split between Atlanta and Miami.