Mark Leiter Jr.
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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.
Mark Leiter Jr.
Pitcher2025 · Regular Season
Worth knowingMark Leiter Jr. comes in 17th of 288 relief pitchers in wins, at 6.
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.
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Game log59 games
| Date | Opp | IP | W | L | SV | H | HR | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 26, 2025 |  BAL | 0.2 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0.00 | 3.00 |
| Sep 19, 2025 | @BAL | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 1.00 |
| Sep 16, 2025 | @ MIN | 1.2 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0.00 | 0.60 |
| Sep 14, 2025 | @ BOS | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.00 | 1.00 |
| Sep 10, 2025 |  DET | 0.1 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 27.00 | 6.00 |
| Sep 9, 2025 | DET | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | — | — |
| Sep 5, 2025 |  TOR | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 9.00 | 2.00 |
| Aug 28, 2025 | @ CWS | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| Aug 25, 2025 |  WSH | 0.1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 27.00 | 3.00 |
| Aug 22, 2025 | BOS | 1 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 9.00 | 2.00 |
| Aug 21, 2025 | BOS | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| Aug 19, 2025 | @ TB | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| Aug 16, 2025 | @ STL | 0.2 | 0 | 0 | 0 | 3 | 1 | 1 | 0 | 13.50 | 4.50 |
| Aug 15, 2025 | @STL | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.00 | 1.50 |
| Aug 13, 2025 | MIN | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.00 | 1.00 |
| Aug 9, 2025 |  HOU | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| Aug 6, 2025 | @ TEX | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| Aug 5, 2025 | @TEX | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| July 6, 2025 | @ NYM | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.00 | 1.50 |
| July 3, 2025 | @TOR | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 1.00 |
| July 1, 2025 | @TOR | 0.1 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 54.00 | 6.00 |
| June 30, 2025 | @TOR | 0.1 | 0 | 1 | 0 | 3 | 0 | 1 | 0 | 54.00 | 9.00 |
| June 24, 2025 | @ CIN | 1 | 0 | 1 | 0 | 3 | 0 | 0 | 1 | 9.00 | 4.00 |
| June 23, 2025 | @CIN | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0.00 | 1.00 |
| June 19, 2025 |  LAA | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| June 18, 2025 | LAA | 0.2 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0.00 | 3.00 |
| June 15, 2025 | @BOS | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0.00 | 1.00 |
| June 12, 2025 | @ KC | 0.1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0.00 | 3.00 |
| June 11, 2025 | @KC | 0.1 | 0 | 0 | 0 | 4 | 1 | 0 | 0 | 54.00 | 12.00 |
| June 7, 2025 | BOS | 1 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 0.00 | 1.00 |
| June 5, 2025 |  CLE | 0.1 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0.00 | 6.00 |
| June 3, 2025 | CLE | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0.00 | 1.00 |
| May 31, 2025 | @ LAD | 0.2 | 0 | 0 | 0 | 4 | 1 | 0 | 0 | 54.00 | 6.00 |
| May 28, 2025 | @LAA | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 0.00 | 1.00 |
| May 26, 2025 | @LAA | 0.2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 1.50 |
| May 25, 2025 | @ COL | 1.1 | 1 | 0 | 0 | 0 | 0 | 2 | 1 | 0.00 | 0.75 |
| May 22, 2025 | TEX | 1 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 0.00 | 2.00 |
| May 20, 2025 | TEX | 1.1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| May 17, 2025 | NYM | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.00 | 1.00 |
| May 16, 2025 | NYM | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 1.00 |
| May 13, 2025 | @ SEA | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| May 12, 2025 | @SEA | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 1.00 |
| May 9, 2025 | @ ATH | 0.2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 1.50 |
| May 3, 2025 | TB | 0.1 | 0 | 1 | 0 | 2 | 0 | 1 | 1 | 54.00 | 9.00 |
| April 30, 2025 | @BAL | 1 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 0.00 | 2.00 |
| April 27, 2025 | TOR | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0.00 | 0.00 |
| April 25, 2025 | TOR | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.00 | 1.00 |
| April 22, 2025 | @CLE | 0.2 | 0 | 1 | 0 | 3 | 0 | 1 | 1 | 13.50 | 6.00 |
| April 19, 2025 | @TB | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0.00 |
| April 18, 2025 | @TB | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0.00 | 1.00 |
| April 16, 2025 | KC | 1.1 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| April 13, 2025 |  SF | 0.2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0.00 | 1.50 |
| April 12, 2025 | SF | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0.00 | 1.00 |
| April 9, 2025 | @DET | 0.1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| April 5, 2025 | @ PIT | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 |
| April 3, 2025 |  ARI | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0.00 | 1.00 |
| April 1, 2025 | ARI | 0.1 | 0 | 1 | 0 | 1 | 1 | 1 | 2 | 81.00 | 9.00 |
| March 30, 2025 |  MIL | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| March 27, 2025 | MIL | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 0.00 |
| Season | G | GS | IP | W | L | SV | ERA | WHIP | H | HR | K | BB |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 36 | 0 | 33.2 | 0 | 1 | 4 | 4.28 | 1.31 | 33 | 2 | 38 | 11 |
| 2025 | 59 | 0 | 48.1 | 6 | 7 | 2 | 4.84 | 1.53 | 57 | 5 | 54 | 17 |
2024 | 60 | 0 | 58 | 4 | 5 | 0 | 4.50 | 1.33 | 55 | 8 | 86 | 22 |
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