Michael Petersen

Active on MLB Roster ... Miami Marlins
High Level
MLB
Years
2015-2026 (2024-2026)
Proper Name
Michael Kenechukwu Petersen
Positions
P (233)
Height / Weight
6-7 / 195
Bats / Throws
Right / Right
Birthdate
May 16,1994   Age:  32.027
High School
St. Francis (Mountain View,CA)
Colleges
West Valley College (Saratoga,CA), Riverside Community College (Riverside,CA)
Signing Bonus
$ 100,000
Service Time
0.086 (2025)
MLB Debut
MLBAM ID
Retrosheet#
petem001
Show More
[2023] Played for Great Britain in World Baseball Classic   [2026] Played for Great Britain in World Baseball Classic

Games - Pitching

CSV
Glossary
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yearteamsggscggrgfwlwpcttm-wtm-ltm-w%holdsvblsvgs%cg%inn1inn2inn3inn4inn5inn6inn7inn8inn9inn10inn11inn12innxip-sip-ravg_stavg_rellmiemigsc1gsc2
2024LAN,MIA160016531.75079.4381010.0--00111448310000.019.2--1.242
2025MIA,ATL150015000--87.5332010.0--00112145331000.018.0--1.272
Tot: 310031531.7501516.4843020.0--002235813641000.037.7--1.2114
g: Games Pitched ... gs: Games Started ... cg: Complete Games ... gr: Games Relieved ... gf: Games Finished ... w: Wins ... l: Losses ... wpct: Win Percentage ... tm-w: Team Wins in games pitched ... tm-l: Team losses in games pitched ... tm-w%: Team win% when pitching ... hold: Holds ... sv: Saves ... blsv: Blown Saves ... gs%: Games Started% ... cg%: Complete Games% ... inn#: Appearances in this inning ... innx: Appearances in 13th+ inning ... ip-s: Innings Pitched as Starter ... ip-r: Innings Pitched as Reliever ... avg_st: Average innings pitched per start ... avg_rel: Average innings pitched per relief appearance ... lmi: Left game mid-inning ... emi: Entered game mid-inning ... gsc1: Average Game Score using Bill James Formula (as starter) ... gsc2: Average Game Score using Tom Tango formula (as starter)

On Base - Pitching

CSV
Glossary
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2024LAN,MIA1690763333.367.367211110000126033002010013538.4654466914.5
2025MIA,ATL1579712526.316.32918701000123031100210011763.6401394816.7
Tot: 311691475833.343.3493918110002490641022200241250.00558511715.4
G: Games ... PA: Plate Appearances ... AB: At Bats ... ONBS: On base (H+BB+HBP) ... ONBS2: All On Base (H+BB+HBP+ERROR+FC+FO) ... OBP: On Base Percentage ... OBP2: On Base Percentage for ONBS2 ... H: Hits ... BB: Walks ... HBP: Hit by Pitch ... ROE: Reached on Error ... FC: Fielder`s Choice ... FO: Forceouts ... CI: Catcher`s Interference ... SGL: Singles ... DBL: Doubles ... TPL: Triples ... HR: Home Runs ... IFH: Infield Hits ... BNT: Bunts ... B-H: Bunt hits ... PH-H: Pinch Hits ... PH-HR: Pinch hit home runs ... HR1: Solo home runs ... HR2: 2-run Homers ... HR3: 3-run Homers ... HR4: Grand Slams ... IPHR: Inside the park homers ... RBI: Runs batted in ... HR-RBI: RBIS on Home Runs ... HR-RBI%: % of RBIs on Home Runs ... RBI2: Runs batted in on outs ... BB4: Walks on 4 pitches ... BB1OP: Walks with 1st base open ... RON: PA with runners on ... BR: # of Baserunners ... RBI%: % of opportunities with RBI ... OPP: RBI Opportunities Points ... CONV: RBIs points converted ... CONV%: Converted% ... LDOF: Leadoff ... OB: Leadoff onbase ... LD-OB%: Leadoff onbase% ... LAST: Last batter of game ... WOH: Walk-off Hits ... WOHR: Walk-off Home Runs

Outs - Pitching

CSV
Glossary
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yearteamsgpaaboutsgoaoratioflylopopout_ifout_ofout_prrbi_outsoso%so3swcalfcfogdpoppgdp%loc1loc2loc3loc4loc5loc6loc7loc8loc9
2024LAN,MIA1690765613290.4521447119421415.56395000150.0111676121611
2025MIA,ATL1579715211240.4613386316211721.523143001128.300435691213
Tot: 3116914710824530.453471213435633118.346238001273.711591212212824
G: Games ... PA: Plate Appearances ... AB: At Bats ... Outs: Outs ... GO: Groundouts ... AO: Air Outs ... ratio: Groundouts/Airouts ... FLY: Flyballs ... LO: Lineouts ... POP: Popouts ... OUT_IF: Infield Outs ... OUT_OF: Outfield Outs ... OUT_PR: Productive Outs ... RBI_OUT: RBIs on outs ... SO: Strikeouts ... SO%: Strikeout% ... SO3: Struck out on 3 pitches ... SW: Strikeouts swinging ... CAL: Strikeouts looking ... FC: Reached on fielders choice ... FO: Reached on forceout ... GDP: Grounded into Double Play ... OPP: Double play opportunities ... GDP%: Grounded into double play% ... LOC1-9: Balls hit to position location

Baserunning - Pitching

CSV
Glossary
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yearteamsgpaabsbsb2sb3sbhdisb%cscs2cs3cshpthrpckffwppbadv_outoobonbsrrs%inh-rinh-s%beq-rbeq-s%
2024LAN,MIA16907622000100.0000070171331339.39300.005120.00
2025MIA,ATL15797100000--000010230261142.314125.001119.09
Tot: 3116914722000100.00000803101592440.687114.2916212.50
G: Games ... PA: Plate Appearances ... AB: At Bats ... SB: Stolen Bases ... SB2: Steals of 2b ... SB3: Steals of 3b ... SBH: Steals of home ... DI: Advanced on defensive indifference ... SB%: Stolen base % ... CS: Caught stealing ... CS2: Caught stealing 2b ... CS3: Caught stealing 3b ... CSH: Caught stealing home ... PTHR: Pickoff throws ... PCKFF: Picked off ... WPPB: Advancement on wild pitch or passed ball ... ADV_OUT: Runner advanced on out ... OOB: Out on bases ... onbs Runners on base ... R: Runs scored ... RS%: % of times on base run scored ... inh-r Inherited runners ... inhr-s Inherited runners scored ... beq-r Bequeathed runners (runners on base when leaving game) ... beq-s Bequeathed runners scored ... % % related to prior 2 columns

Pitches - Pitching

CSV
Glossary
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yearteamsgpaabpitstrbalfouswcalinplayswingscontp-pastr%bal%swng%cont%fou%play%fpsfpswfpsw%fpipfpip%gbairgb%
2024LAN,MIA169076367234133872946641881514.0863.7636.2451.280.323.7117.4613842.21011.117470.36
2025MIA,ATL157971338216122793840551761344.2863.9136.0952.176.123.3716.3513341.81417.716390.41
Tot: 3116914770545025516667861193642854.1763.8336.1751.678.323.5516.91127142.02414.233860.38
G: Games ... PA: Plate Appearances ... AB: At bats ... PIT: Pitches ... STR: Strikes ... BAL: Balls ... FOU: Fouls ... SW: Swing and miss ... CAL: Called strikes ... INPLAY: Balls put in play ... SWINGS: Total swings ... CONT: Contacts ... P-PA: Pitches per plate appearance ... STR%: Strikes% ... Ball%: Balls% ... SWNG%: Swing % ... CONT%: Contact% (per swing) ... FOU%: Foul ball% ... PLAY: Ball in Play% ... FPS: First pitch strikes ... FPSW: First pitch swings ... FPSW%: First pitch swing%... FPIP: First pitches in play ... FPIP%: First pitches in play% ... RUNGO: Runners going while batting ... HIT_RUN: Hit and Runs ... GB Ground balls ... Air Balls in air ... GB% Groundball%