← Pittsburgh Pirates
Mason Montgomery
Pittsburgh Pirates
RP · #46 · Bats L · Throws L · 6'2" · 205 lb · Age 26 · 3 yrs in MLB
2026 grade
96.3
- Runs prevented
- +15.1
- IP · ERA
- 68.2 · 2.88
- K · BB
- 105 · 26
- Rank
- 8 of 205 relievers
What the grade is made of
Runs each part saves or costs against an average pitcher facing the same batters. Contact counts a quarter for how it turned out, because over a season that's mostly the fielders and luck.
- Strikeouts105 vs 62 avg+11.8
- Home runs allowed6 vs 8 avg+3.4
- Contact allowed (how it turned out counts a quarter)140 vs 179 avg−1.1
- Hit batters1 vs 3 avg+0.8
- Parks pitched in+0.3
2026 game log: pitching
Game grades need 3 batters faced; starts are ranked against starts, relief outings against relief outings.
| Game | Result | Dec | IP | H | R | ER | BB | K | HR | PC | Grade |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sun, Sep 27@DET | W 4-2 | S | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 14 | 87.9 |
| Sat, Sep 26@DET | L 3-4 | L | 0.2 | 3 | 3 | 3 | 0 | 1 | 1 | 20 | 3.4 |
| Thu, Sep 24vsSTL | W 2-1 | S | 1.0 | 0 | 0 | 0 | 0 | 3 | 0 | 17 | 83.7 |
| Sun, Sep 20vsKC | W 4-3 | S | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 11 | 42.9 |
| Sat, Sep 19vsKC | W 6-5 | S | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 | 21 | 65.2 |
| Thu, Sep 17vsMIL | W 7-4 | S | 1.1 | 0 | 0 | 0 | 2 | 2 | 0 | 29 | 60.9 |
| Sun, Sep 13@CHC | W 4-3 | S | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 72.8 |
| Thu, Sep 10@CHW | W 2-0 | S | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 14 | 55.1 |
| Wed, Sep 9@CHW | W 4-2 | S | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 17 | 76.8 |
| Sun, Sep 6vsLAA | W 1-0 | S | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 | 16 | 65.0 |
| Fri, Sep 4vsLAA | W 1-0 | S | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 21 | 57.8 |
| Thu, Sep 3vsSF | W 5-2 | S | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 11 | 83.7 |
| Tue, Sep 1vsSF | W 13-12 | W | 1.0 | 2 | 0 | 0 | 0 | 0 | 0 | 15 | 13.2 |
| Sun, Aug 30@STL | W 5-4 | S | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 77.9 |
| Sat, Aug 29@STL | W 6-2 | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 14 | 77.9 | |
| Tue, Aug 25@SD | W 1-0 | S | 1.0 | 0 | 0 | 0 | 1 | 2 | 0 | 24 | 62.0 |
| Mon, Aug 24@SD | W 3-2 | 1.1 | 1 | 0 | 0 | 0 | 1 | 0 | 12 | 53.9 | |
| Fri, Aug 21@LAD | L 4-5 | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 13 | 74.1 | |
| Wed, Aug 19vsDET | W 4-3 | W | 1.0 | 2 | 0 | 0 | 0 | 2 | 0 | 26 | 36.1 |
| Tue, Aug 18vsDET | W 4-1 | S | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 15 | 93.7 |
| Sun, Aug 16vsBOS | W 8-3 | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 11 | 83.7 | |
| Fri, Aug 14vsBOS | W 8-4 | S | 0.1 | 0 | 0 | 0 | 0 | 1 | 0 | 6 | – |
| Sun, Aug 9vsNYM | L 1-11 | 1.0 | 0 | 0 | 0 | 0 | 3 | 0 | 15 | 84.3 | |
| Mon, Aug 3@MIL | W 4-3 | S | 1.0 | 1 | 0 | 0 | 0 | 3 | 0 | 18 | 55.7 |
| Fri, Jul 31@CIN | L 7-8 | 0.2 | 0 | 0 | 0 | 1 | 1 | 0 | 12 | 86.3 | |
| Thu, Jul 30@CIN | L 2-3 | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 7 | 86.3 | |
| Mon, Jul 27vsARI | W 3-2 | W | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 | 20 | 93.8 |
| Sun, Jul 26vsCHC | W 8-7 | S | 1.0 | 2 | 2 | 2 | 0 | 2 | 1 | 25 | 12.9 |
| Fri, Jul 24vsCHC | L 2-3 | 1.0 | 0 | 0 | 0 | 0 | 3 | 0 | 15 | 85.7 | |
| Wed, Jul 22@NYY | W 5-3 | W | 1.1 | 0 | 0 | 0 | 1 | 2 | 0 | 19 | 69.9 |
| Sun, Jul 19@CLE | W 7-1 | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 14 | 81.8 | |
| Sat, Jul 18@CLE | L 3-5 | GS | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 | 14 | 57.2 |
| Sat, Jul 11vsMIL | W 3-2 | S | 1.0 | 0 | 0 | 0 | 1 | 2 | 0 | 27 | 65.5 |
| Wed, Jul 8vsATL | L 0-3 | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 | 16 | 58.6 | |
| Sun, Jul 5@WSH | W 11-5 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 16 | 83.7 | |
| Sat, Jul 4@WSH | W 7-1 | H | 0.1 | 0 | 0 | 0 | 0 | 1 | 0 | 4 | – |
| Thu, Jul 2@PHI | W 6-1 | 1.0 | 0 | 0 | 0 | 0 | 3 | 0 | 14 | 87.4 | |
| Mon, Jun 29@PHI | W 11-7 | 1.0 | 0 | 0 | 0 | 1 | 2 | 0 | 19 | 65.5 | |
| Fri, Jun 26vsCIN | L 4-6 | L | 0.2 | 2 | 2 | 2 | 0 | 2 | 1 | 23 | 9.3 |
| Thu, Jun 25vsSEA | W 5-1 | H | 1.1 | 0 | 0 | 0 | 0 | 2 | 0 | 15 | 93.7 |
| Tue, Jun 23vsSEA | L 2-3 | 1.0 | 1 | 0 | 0 | 0 | 3 | 0 | 19 | 58.0 | |
| Fri, Jun 19@COL | L 3-4 | L | 0.2 | 3 | 2 | 2 | 0 | 1 | 0 | 24 | 12.5 |
| Tue, Jun 16@ATH | W 6-5 | W | 1.0 | 0 | 0 | 0 | 1 | 2 | 0 | 21 | 65.4 |
| Sat, Jun 13vsMIA | W 3-2 | B | 1.1 | 2 | 0 | 0 | 0 | 0 | 0 | 15 | 35.1 |
| Sun, Jun 7@ATL | L 2-3 | GS | 1.0 | 1 | 0 | 0 | 2 | 2 | 0 | 25 | 35.9 |
| Sat, Jun 6@ATL | L 3-6 | 1.0 | 0 | 0 | 0 | 1 | 0 | 0 | 20 | 63.0 | |
| Wed, Jun 3@HOU | L 9-11 | 0.2 | 2 | 3 | 3 | 1 | 2 | 0 | 26 | 9.5 | |
| Sat, May 30vsMIN | W 10-9 | H | 0.2 | 2 | 2 | 2 | 2 | 0 | 0 | 25 | 12.4 |
| Thu, May 28vsCHC | L 2-7 | 1.2 | 0 | 0 | 0 | 0 | 2 | 0 | 27 | 96.4 | |
| Sun, May 24@TOR | W 4-1 | H | 1.2 | 0 | 0 | 0 | 0 | 2 | 0 | 18 | 96.1 |
| Thu, May 21@STL | W 6-2 | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 | 8 | 42.9 | |
| Tue, May 19@STL | L 6-9 | L | 0.0 | 2 | 3 | 2 | 0 | 0 | 1 | 5 | – |
| Fri, May 15vsPHI | L 9-11 | 1.1 | 1 | 1 | 1 | 0 | 0 | 1 | 15 | 29.5 | |
| Thu, May 14vsCOL | W 7-2 | GS | 1.0 | 1 | 0 | 0 | 0 | 3 | 0 | 14 | 54.3 |
| Sun, May 10@SF | L 6-7 | 1.2 | 0 | 0 | 0 | 0 | 1 | 0 | 19 | 96.0 | |
| Thu, May 7@ARI | W 4-2 | H | 0.2 | 1 | 0 | 0 | 1 | 0 | 0 | 16 | 32.0 |
| Thu, Apr 30vsSTL | L 5-10 | 1.0 | 0 | 0 | 0 | 1 | 0 | 0 | 12 | 65.0 | |
| Mon, Apr 27vsSTL | L 2-4 | GS | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 7 | 64.9 |
| Sat, Apr 25@MIL | W 6-3 | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 | 20 | 63.3 | |
| Fri, Apr 24@MIL | W 6-0 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 9 | 74.1 | |
| Fri, Apr 17vsTB | W 5-1 | H | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 | 16 | 58.0 |
| Wed, Apr 15vsWSH | W 2-0 | GS | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 11 | 49.0 |
| Tue, Apr 14vsWSH | L 4-5 | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 | 18 | 42.9 | |
| Sat, Apr 11@CHC | W 4-3 | H | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 | 13 | 53.8 |
| Fri, Apr 10@CHC | W 2-0 | W | 0.2 | 0 | 0 | 0 | 1 | 2 | 0 | 17 | 49.5 |
| Sun, Apr 5vsBAL | W 8-2 | 1.0 | 3 | 1 | 1 | 0 | 3 | 0 | 25 | 21.4 | |
| Fri, Apr 3vsBAL | W 5-4 | H | 0.2 | 0 | 0 | 0 | 0 | 1 | 0 | 9 | – |
| Wed, Apr 1@CIN | W 8-3 | H | 0.2 | 1 | 2 | 2 | 1 | 1 | 1 | 15 | 11.1 |
| Sun, Mar 29@NYM | W 4-3 | 1.0 | 2 | 0 | 0 | 0 | 3 | 0 | 20 | 34.9 | |
| Thu, Mar 26@NYM | L 7-11 | 1.1 | 1 | 2 | 2 | 3 | 2 | 0 | 42 | 26.5 |
Scores, box scores and play-by-play from ESPN. The run values and park factors behind the grades were worked out from Retrosheet's play-by-play: the information used here was obtained free of charge from and is copyrighted by Retrosheet. Interested parties may contact Retrosheet at www.retrosheet.org.