Michael Petersen
#49 RP · Marlins
Height
6'7"
Weight
195 lbs
Age
31
College
N/A
Experience
2 yrs
Bats/Throws
R/R
C+
D
—
Fan Verdict
Grade this player:
Career StatsC+
| Year | Team | GP | ERA | W-L | K | WHIP | IP | SV |
|---|---|---|---|---|---|---|---|---|
| Career |  | 40 | 4.6551723 | 4-2 | 42 | 1.386207 | 0.0 | 1 |
Current Contract
Length
1 year
AAV
$780K/yr
Performance Analysis
C+
FCA+
Michael Petersen grades as an above average performer among MLB relief pitchers, earning a B Performance grade. He carries a 5.02 ERA (well above the league average of 4.20, a significant concern) and a 1.51 WHIP across 37.2 innings pitched with a 7.5 K/9 rate. As a sophomore at 31, Michael is a key contributor for the Marlins.
Fan & Media Sentiment
D
Negative
NegativeNeutralPositive
Michael Petersen enters the 2026 regular season as one of the more anonymous arms in Miami's bullpen, and public perception reflects exactly that — a D sentiment grade that signals near-total indifference rather than active criticism. The origin story here does him no favors: being traded from Atlanta to Miami for cash considerations is one of the loudest quiet statements an organization can make, effectively broadcasting that the Braves considered him surplus inventory despite his youth and modest salary, and early Marlins coverage has done nothing to rewrite that narrative, with reporting landing squarely in neutral territory and no standout performance headlines to shift the conversation. His on-field production tells a somewhat more encouraging story — a C+ performance grade suggests he's a functional, if unspectacular, piece of a major-league bullpen, which at 31 with only two years of experience makes him a developmental arm still working to carve out a defined role. Miami's recent roster activity — cycling through multiple pitchers and position players across the past two weeks — paints a picture of a front office aggressively filling depth, which means Petersen is competing for real estate rather than holding a guaranteed spot. With the Marlins sitting at 16-20 and trending in the wrong direction both in the standings and in the public eye, there is simply no platform here for a back-end reliever to generate positive buzz, and until Petersen either produces a string of high-leverage outings or the team's direction clarifies, his narrative sits firmly in cautiously observational territory — watchable, but not worth watching for.
Recent Games
| Date | OPP | Result | AB | H | R | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|
| Thu, 5/7 | vs BAL | W 4-3 | - | - | - | 0 | - | - | - |
| Tue, 5/5 | vs BAL | L 7-9 | - | - | - | 0 | - | - | - |
Transaction History
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About this player
Michael Petersen is a player in his 2nd MLB season listed at RP for the Marlins. FanVerdicts maintains four independent grades for every MLB player on an active roster — Contract Value Index for the deal itself, Performance for on-field production, Sentiment for media and fan reaction, and Fan Verdict for community voting. Current grades for Michael Petersen: Contract Value Index pending, Performance C+, Sentiment D, Fan Verdict pending.
Every grade refreshes on its own cadence as new data lands. Performance recalculates when MLB game stats post; Sentiment updates with new media coverage and fan discussion; Contract Value Index recomputes when contract terms change; Fan Verdict reflects live community voting on this profile. Contract details below show the structure (years, total value, average annual value, guarantees) the Contract Value Index grade is computed against.
For league-wide context, the MLB hub has team rankings, GM report cards, the transactions feed, and live scoreboards. The MLB player rankings page sorts every active player by performance and contract value within their position.