Statistics| Year | Team | G | IP | H | K | BB | ER | Win | Sav | WHIP | ERA |
|---|
| 2024 | Orioles | 4 | 5.33 | 10 | 4 | 3 | 10 | 0 | 0 | 2.438 | 16.88 |
| 2023 | Royals | 12 | 15.00 | 17 | 9 | 2 | 12 | 0 | 0 | 1.267 | 7.20 |
| 2022 | Royals | 21 | 104.00 | 108 | 70 | 47 | 61 | 4 | 0 | 1.490 | 5.28 |
| 2021 | Royals | 3 | 14.67 | 15 | 6 | 3 | 8 | 1 | 0 | 1.227 | 4.91 |
| Total MLB | 40 | 139.00 | 150 | 89 | 55 | 91 | 5 | 0 | 1.475 | 5.89 |
| | 2021 Projections |
|---|
| Source | | G | IP | H | K | BB | ER | Win | Sav | WHIP | ERA |
|---|
| RV Current | 8 | 9.41 | 9 | 9 | 3 | 4 | 0 | 0 | 1.292 | 4.27 |
2021 Game Log| October | | Pos | IP | H | K | BB | ER | Win | Sav | WHIP | ERA |
|---|
| 2021-10-01 | v Min | SP | 5.33 | 6 | 1 | 1 | 4 | 1 | 0 | 1.312 | 6.75 |
| Total | 5.33 | 6 | 1 | 1 | 4 | 1 | 0 | 1.312 | 6.75 |
| September | | Pos | IP | H | K | BB | ER | Win | Sav | WHIP | ERA |
|---|
| 2021-09-25 | @ Det | SP | 5.33 | 3 | 3 | 2 | 0 | 0 | 0 | 0.938 | 0.00 |
| 2021-09-17 | v Sea | SP | 4.00 | 6 | 2 | 0 | 4 | 0 | 0 | 1.500 | 9.00 |
| Total | 9.33 | 9 | 5 | 2 | 4 | 0 | 0 | 1.179 | 3.86 |
| | Date | Time | Headline |
|---|
| Mon Dec 18 2023 | 20:39 | Orioles Acquire Jonathan Heasley From Royals | | Thu May 12 2022 | 09:20 | Jon Heasley To Be Called Up To Start Thursday's Game | | Sat Sep 18 2021 | 09:03 | Jon Heasley Gives Up Four Runs In MLB Debut |
| |