| Window | G | IP | ERA | WHIP | K | BB |
|---|---|---|---|---|---|---|
| Last 7 days | 1 | 5 | 14.40 | 1.80 | 2 | 1 |
| Last 30 days | 5 | 28 | 5.79 | 1.14 | 21 | 8 |
| 2026 season | 9 | 50 | 4.97 | 1.20 | 42 | 17 |
How Jameson ranks vs qualified MLB pitchers in 2026. Higher percentile = better. The chip on each bar is the percentile (e.g. 11%ile means better than 11% of qualified players).
| Split | IP | ERA | WHIP | K | BB | HR |
|---|---|---|---|---|---|---|
| As starter | 50 | 4.97 | 1.20 | 42 | 17 | 16 |
| Home | 22 | 3.63 | 1.25 | 22 | 10 | 6 |
| Away | 28 | 6.04 | 1.16 | 20 | 7 | 10 |
Last appearance · May 16 · 90 pitches
| Pitch | Count | Usage | Avg Velo | Max |
|---|---|---|---|---|
Four-Seam FastballFF | 32 | 36% | 92.3 mph | 93.3 |
ChangeupCH | 22 | 24% | 84.2 mph | 85.1 |
CurveballCU | 15 | 17% | 79.3 mph | 81.1 |
CutterFC | 10 | 11% | 86.9 mph | 88.6 |
SweeperST | 6 | 7% | 79.3 mph | 80.8 |
SinkerSI | 5 | 6% | 93.2 mph | 93.7 |
| Date | Opp | IP | H | R | ER | BB | K | HR | ERA |
|---|---|---|---|---|---|---|---|---|---|
| 2026-05-16 | @ Chicago White Sox | 5 | 8 | 8 | 8 | 1 | 2 | 5 | 4.97 |
| 2026-05-10 | @ Texas Rangers | 5 | 4 | 1 | 1 |
| Year | Team | W | L | G | IP | ERA | WHIP | K | BB | HR | K/9 | BB/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2016 | Pittsburgh Pirates | 5 | 4 | 18 | 104.0 | 3.38 | 1.12 | 85 | 17 | 13 | 7.36 | 1.47 |
| 2017 | Pittsburgh Pirates |
| 2 |
| 4 |
| 0 |
| 3.94 |
| 2026-05-05 | vs Cincinnati Reds | 5 | 5 | 2 | 2 | 1 | 5 | 2 | 4.24 |
| 2026-04-29 | @ San Diego Padres | 7 | 3 | 3 | 3 | 1 | 6 | 2 | 4.41 |
| 2026-04-24 | @ Los Angeles Dodgers | 5 | 4 | 4 | 4 | 3 | 4 | 1 | 4.55 |
| 2026-04-18 | vs New York Mets | 6 | 5 | 1 | 1 | 3 | 4 | 1 | 3.97 |
| 2026-04-12 | vs Pittsburgh Pirates | 6 | 6 | 6 | 6 | 2 | 10 | 3 | 4.86 |
| 2026-04-06 | @ Tampa Bay Rays | 6 | 7 | 4 | 3 | 0 | 4 | 2 | 2.53 |
| 2026-03-31 | vs Los Angeles Angels | 4 | 2 | 0 | 0 | 4 | 3 | 0 | 0.00 |
| 8 |
| 7 |
| 25 |
| 133.2 |
| 4.44 |
| 1.48 |
| 125 |
| 46 |
| 11 |
| 8.42 |
| 3.10 |
| 2018 | Pittsburgh Pirates | 14 | 10 | 32 | 191.0 | 3.20 | 1.18 | 179 | 46 | 20 | 8.43 | 2.17 |
| 2019 | Pittsburgh Pirates | 2 | 3 | 7 | 37.1 | 4.10 | 1.13 | 30 | 8 | 4 | 7.23 | 1.93 |
| 2021 | New York Yankees | 8 | 6 | 29 | 144.1 | 4.30 | 1.21 | 140 | 44 | 24 | 8.73 | 2.74 |
| 2022 | New York Yankees | 14 | 5 | 32 | 177.1 | 3.91 | 1.13 | 151 | 32 | 26 | 7.66 | 1.62 |
| 2023 | Chicago Cubs | 8 | 10 | 30 | 154.1 | 4.84 | 1.28 | 140 | 41 | 27 | 8.16 | 2.39 |
| 2024 | Chicago Cubs | 12 | 8 | 28 | 165.1 | 3.27 | 1.13 | 125 | 33 | 21 | 6.80 | 1.80 |
| 2025 | Chicago Cubs | 11 | 7 | 23 | 129.2 | 3.68 | 1.06 | 98 | 27 | 24 | 6.80 | 1.87 |
| 2026 | Chicago Cubs | 2 | 3 | 9 | 50.2 | 4.97 | 1.20 | 42 | 17 | 16 | 7.46 | 3.02 |
| Career | — | 84 | 63 | 233 | 1287.2 | 3.91 | 1.19 | 1,115 | 311 | 186 | 7.79 | 2.17 |
