← Miami Marlins
Jack Ralston
Miami Marlins
RP · #79 · Bats R · Throws R · 6'6" · 231 lb · Age 29 · 1 yr in MLB
2026 grade
13.7
- Runs prevented
- −3.5
- IP · ERA
- 17.1 · 5.71
- K · BB
- 19 · 9
- Rank
- Not qualified
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.
- Home runs allowed5 vs 2 avg−3.8
- Strikeouts19 vs 17 avg+0.6
- Walks8 vs 6 avg−0.5
- Contact allowed (how it turned out counts a quarter)42 vs 49 avg+0.1
- Parks pitched in+0.1
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sat, Sep 26vsATL | L 3-8 | L | 1.1 | 3 | 3 | 3 | 1 | 2 | 1 | 33 | 18.0 |
| Thu, Sep 24@CHC | L 1-2 | L | 1.1 | 3 | 2 | 2 | 0 | 2 | 1 | 24 | 4.3 |
| Tue, Sep 22@CHC | W 8-2 | 1.0 | 0 | 0 | 0 | 2 | 0 | 0 | 21 | 61.9 | |
| Fri, Sep 18@SD | L 2-8 | 1.0 | 0 | 0 | 0 | 1 | 2 | 0 | 21 | 46.8 | |
| Wed, Sep 16@ARI | W 4-3 | H | 2.0 | 1 | 1 | 1 | 0 | 4 | 1 | 31 | 49.6 |
| Mon, Sep 14@ARI | L 7-8 | L | 0.1 | 1 | 1 | 1 | 0 | 0 | 1 | 6 | – |
| Sun, Sep 13vsLAD | W 6-4 | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 21 | 43.8 | |
| Wed, Sep 9vsNYM | L 14-15 | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 | 13 | 65.5 | |
| Tue, Sep 8vsNYM | L 5-7 | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 14 | 58.3 | |
| Sun, Sep 6vsCHC | W 10-3 | 1.0 | 1 | 0 | 0 | 1 | 2 | 0 | 23 | 40.3 | |
| Fri, Sep 4vsCHC | L 1-6 | 0.1 | 0 | 3 | 3 | 3 | 0 | 0 | 17 | 18.8 | |
| Wed, Sep 2@KC | W 9-6 | H | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 88.5 |
| Mon, Aug 31@WSH | L 3-6 | 0.2 | 2 | 1 | 1 | 0 | 1 | 1 | 23 | 9.2 | |
| Sat, Aug 29@WSH | L 4-5 | 1.1 | 0 | 0 | 0 | 0 | 1 | 0 | 15 | 93.3 | |
| Tue, Aug 25vsBOS | L 3-7 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 85.0 | |
| Sun, Aug 23vsWSH | W 6-2 | H | 2.0 | 2 | 0 | 0 | 0 | 2 | 0 | 31 | 69.2 |
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.