Statistics| Year | Team | G | IP | BF | H | HR | K | BB | IBB | HB | ER | Win | Sav | WHIP | ERA | K/BB | BABIP | FIP | kwERA |
|---|
| 2024 | Cubs | 9 | 10.00 | 38 | 3 | 0 | 11 | 4 | 0 | 0 | 0 | 0 | 0 | 0.700 | 0.00 | 2.75 | .130 | 2.10 | 3.19 |
| 2023 | Cubs | 69 | 64.33 | 269 | 48 | 7 | 77 | 24 | 0 | 8 | 25 | 1 | 4 | 1.119 | 3.50 | 3.21 | .268 | 3.61 | 3.39 |
| 2022 | Cubs | 35 | 67.67 | 282 | 52 | 10 | 73 | 25 | 2 | 7 | 30 | 2 | 3 | 1.138 | 3.99 | 2.92 | .251 | 4.19 | 3.56 |
| 2018 | Tot | 20 | 23.33 | 123 | 35 | 7 | 22 | 12 | 3 | 2 | 20 | 0 | 0 | 2.014 | 7.71 | 1.83 | .350 | 6.53 | 4.30 |
| 2018 | Blue Jays | 8 | 6.67 | 39 | 13 | 2 | 9 | 4 | 1 | 1 | 10 | 0 | 0 | 2.550 | 13.50 | 2.25 | .478 | 6.10 | 3.82 |
| 2018 | Phillies | 12 | 16.67 | 84 | 22 | 5 | 13 | 8 | 2 | 1 | 10 | 0 | 0 | 1.800 | 5.40 | 1.62 | .298 | 6.70 | 4.52 |
| 2017 | Phillies | 27 | 90.67 | 395 | 90 | 18 | 84 | 31 | 2 | 7 | 50 | 3 | 0 | 1.335 | 4.96 | 2.71 | .282 | 5.02 | 3.93 |
| Total MLB | 160 | 256.00 | 1107 | 228 | 42 | 267 | 96 | 7 | 24 | 125 | 6 | 7 | 1.266 | 4.39 | 2.78 | .274 | 4.47 | 3.72 |
| 2020 | Spring | 0 | 0.00 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.00 | 0.00 | n.a. | 3.10 | n.a. |
2020 Game Log | | Date | Time | Headline |
|---|
| Tue Aug 22 2023 | 00:15 | Mark Leiter Jr. Escapes With Save Monday | | Sat Jun 3 2023 | 08:27 | Mark Leiter Jr. Registers His Third Save On Friday | | Wed May 24 2023 | 23:48 | Mark Leiter Jr. Closes Out Mets; New Favorite For Saves? | | Sat May 6 2023 | 10:32 | Mark Leiter Jr. Grabs The Save Friday | | Mon May 1 2023 | 22:18 | Mark Leiter Jr. Secures Another Hold | | Sat Apr 8 2023 | 10:31 | Mark Leiter Jr. Earns A Hold Friday | | Thu Feb 2 2023 | 13:38 | Mark Leiter Jr. Re-Signs With Cubs | | Thu Jan 19 2023 | 18:31 | Mark Leiter Jr. Clears Waivers, Outrighted To Minors |
| |
