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How to read this page
A player page shows one box score, because a hitter and a pitcher share almost no column — which half you get follows the one he appears in. Every rate is built from summed counts, so a batting average is hits over at bats across whatever window you picked rather than an average of nightly averages. Pitchers rank against starters or relievers, which is the split the sport itself draws. A dash means no number for that cell, or a zero in a roster column that counts.
Michael Petersen
Pitcher2026 · Regular Season
For contextIn hits per 9, Michael Petersen is 30th of 247 relief pitchers, at 6.3.
94th beats 94% of the Relief Pitchers; 1 is the best of however many the row says. Higher is always better, whichever way the stat runs. Red to green by where the placing sits. A stat with no better end is left unpainted.
Cardsall 4 shown▶
Playing TimeDefensevs Relief Pitchers▶
ResultsDefensevs Relief Pitchers▶
CommandDefensevs Relief Pitchers▶
ReliefDefensevs Relief Pitchers▶
Game log64 games
| Date | Opp | IP | W | L | SV | H | HR | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 23, 2026 | @ CHC | 0.2 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0.00 | 1.50 |
| Sep 22, 2026 | @CHC | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0.00 | 2.00 |
| Sep 19, 2026 | @ SD | 1.1 | 0 | 0 | 0 | 2 | 0 | 4 | 0 | 6.75 | 1.50 |
| Sep 15, 2026 | @ ARI | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0.00 | 1.00 |
| Sep 14, 2026 | @ARI | 1 | 0 | 0 | 0 | 2 | 0 | 3 | 0 | 0.00 | 2.00 |
| Sep 12, 2026 |  LAD | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| Sep 9, 2026 |  NYM | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| Sep 2, 2026 | @ KC | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| Aug 30, 2026 | @ WSH | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 1.00 |
| Aug 29, 2026 | @WSH | 0.2 | 0 | 1 | 0 | 1 | 0 | 1 | 2 | 0.00 | 4.50 |
| Aug 25, 2026 |  BOS | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0.00 | 2.00 |
| Aug 23, 2026 | WSH | 0.1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0.00 | 3.00 |
| Aug 22, 2026 | WSH | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| Aug 18, 2026 | @ PHI | 1 | 0 | 1 | 0 | 4 | 0 | 0 | 0 | 36.00 | 4.00 |
| Aug 16, 2026 | @ CIN | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 9.00 | 1.00 |
| Aug 15, 2026 | @CIN | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| Aug 11, 2026 |  PIT | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0.00 | 1.00 |
| Aug 9, 2026 |  LAA | 1 | 1 | 0 | 0 | 0 | 0 | 2 | 1 | 0.00 | 1.00 |
| Aug 7, 2026 | LAA | 1.1 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0.00 | 1.50 |
| Aug 2, 2026 | @NYM | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0.00 | 1.00 |
| July 30, 2026 | @NYM | 0.2 | 0 | 1 | 0 | 3 | 0 | 1 | 0 | 27.00 | 4.50 |
| July 26, 2026 | SD | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| July 24, 2026 | SD | 0.2 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0.00 | 3.00 |
| July 19, 2026 | @ MIL | 1.1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| July 17, 2026 | @MIL | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0.00 | 2.00 |
| July 12, 2026 |  CLE | 1 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 9.00 | 2.00 |
| July 8, 2026 |  SEA | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| July 7, 2026 | SEA | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| July 5, 2026 | @ ATH | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| July 3, 2026 | @ATH | 0.1 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0.00 | 6.00 |
| June 29, 2026 | @ COL | 1.1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 6.75 | 0.75 |
| June 26, 2026 | @ STL | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 1.00 |
| June 24, 2026 |  TEX | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0.00 | 0.00 |
| June 22, 2026 | TEX | 0.2 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0.00 | 3.00 |
| June 21, 2026 |  SF | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| June 19, 2026 | SF | 1 | 0 | 0 | 0 | 2 | 1 | 1 | 0 | 18.00 | 2.00 |
| June 17, 2026 | @PHI | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0.00 | 0.00 |
| June 13, 2026 | @PIT | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0.00 | 0.00 |
| June 11, 2026 | ARI | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| June 9, 2026 | ARI | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 0.00 | 3.00 |
| June 7, 2026 |  TB | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| June 6, 2026 | TB | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 9.00 | 2.00 |
| June 2, 2026 | @WSH | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0.00 | 1.00 |
| June 1, 2026 | @WSH | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.00 | 1.00 |
| May 29, 2026 | @NYM | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| May 27, 2026 | @ TOR | 0.2 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 13.50 | 4.50 |
| May 24, 2026 | NYM | 1.1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| May 22, 2026 | NYM | 0.2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 1.50 |
| May 19, 2026 |  ATL | 1.1 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0.00 | 1.50 |
| May 15, 2026 | @TB | 1.1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| May 9, 2026 | WSH | 0.2 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 40.50 | 6.00 |
| May 7, 2026 |  BAL | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| May 5, 2026 | BAL | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| April 28, 2026 | @LAD | 0.1 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 27.00 | 9.00 |
| April 27, 2026 | @LAD | 1.1 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0.00 | 0.75 |
| April 22, 2026 | STL | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0.00 | 0.00 |
| April 19, 2026 | MIL | 1.2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 5.40 | 0.60 |
| April 14, 2026 | @ATL | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 0.50 |
| April 11, 2026 | @ DET | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| April 8, 2026 | CIN | 1 | 0 | 0 | 1 | 2 | 0 | 2 | 0 | 0.00 | 2.00 |
| April 4, 2026 | @ NYY | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 3 | 18.00 | 4.00 |
| April 3, 2026 | @NYY | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 9.00 | 2.00 |
| March 30, 2026 |  CWS | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| March 29, 2026 | COL | 1 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| Season | G | GS | IP | W | L | SV | ERA | WHIP | H | HR | K | BB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 64 | 0 | 64 | 3 | 4 | 1 | 3.09 | 1.14 | 45 | 5 | 81 | 28 |
| 2025 | 15 | 0 | 18 | 0 | 0 | 0 | 4.00 | 1.39 | 18 | 3 | 17 | 7 |
| 2024 | 16 | 0 | 19.2 | 3 | 1 | 0 | 5.95 | 1.63 | 21 | 3 | 14 | 11 |
About MLB Research
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Every number the site holds for a Major League team and the players who played for it, in one place. Pick a club, a season and a set of games, and read it. Nothing here needs an account.
Where the numbers come from
The same tables the boards read, resolved through one shared definition per stat. A rate is computed over the whole window rather than averaged across games, so a season figure is not the mean of the nightly ones.