| Window | G | IP | ERA | WHIP | K | BB |
|---|---|---|---|---|---|---|
| Last 30 days | 1 | 2 | 4.50 | 1.00 | 1 | 0 |
| 2026 season | 18 | 86 | 5.65 | 1.36 | 76 | 32 |
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 | 76 | 5.92 | 1.36 | 68 | 27 | 25 |
| As starter | 10 | 3.60 | 1.40 | 8 | 5 | 2 |
| As starter | 86 | 5.65 | 1.36 | 76 | 32 | 27 |
| Home | 38 |
Last appearance · Sep 4 · 29 pitches
| Pitch | Count | Usage | Avg Velo | Max |
|---|---|---|---|---|
CutterFC | 11 | 38% | 86.8 mph | 89.5 |
Four-Seam FastballFF | 5 | 17% | 90.6 mph | 92.0 |
CurveballCU | 5 | 17% | 79.3 mph | 80.7 |
SinkerSI | 3 | 10% | 90.6 mph | 91.7 |
SweeperST | 3 | 10% | 79.7 mph | 79.9 |
ChangeupCH | 2 | 7% | 86.2 mph | 86.2 |
| Date | Opp | IP | H | R | ER | BB | K | HR | ERA |
|---|---|---|---|---|---|---|---|---|---|
| 2026-09-04 | @ Kansas City Royals | 2 | 2 | 1 | 1 | 0 | 1 | 1 | 5.65 |
| 2026-08-10 | vs Boston Red Sox | 4 | 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 |
| 4.66 |
| 1.42 |
| 41 |
| 16 |
| 10 |
| Home | 4 | 0.00 | 1.00 | 3 | 3 | 0 |
| Home | 42 | 4.22 | 1.38 | 44 | 19 | 10 |
| Away | 37 | 7.23 | 1.29 | 27 | 11 | 15 |
| Away | 6 | 6.00 | 1.67 | 5 | 2 | 2 |
| Away | 43 | 7.06 | 1.34 | 32 | 13 | 17 |
| 0 |
| 0 |
| 3 |
| 3 |
| 0 |
| 5.68 |
| 2026-08-05 | @ Houston Astros | 4 | 6 | 3 | 3 | 2 | 4 | 1 | 5.96 |
| 2026-07-26 | @ Pittsburgh Pirates | 4 | 6 | 7 | 7 | 2 | 3 | 3 | 5.92 |
| 2026-07-20 | vs Detroit Tigers | 4 | 5 | 4 | 4 | 2 | 6 | 2 | 5.38 |
| 2026-06-07 | vs San Francisco Giants | 1 | 2 | 1 | 1 | 2 | 2 | 0 | 5.19 |
| 2026-06-02 | vs Athletics | 6 | 6 | 2 | 2 | 1 | 6 | 1 | 5.13 |
| 2026-05-27 | @ Pittsburgh Pirates | 5 | 5 | 4 | 4 | 2 | 4 | 2 | 5.37 |
| 2026-05-22 | vs Houston Astros | 4 | 8 | 4 | 4 | 1 | 5 | 1 | 5.20 |
| 2026-05-16 | @ Chicago White Sox | 5 | 8 | 8 | 8 | 1 | 2 | 5 | 4.97 |
| 2017 |
| Pittsburgh Pirates |
| 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 | 6 | 15 | 76.0 | 5.92 | 1.36 | 68 | 27 | 25 | 8.05 | 3.20 |
| 2026 | Toronto Blue Jays | 0 | 0 | 3 | 10.0 | 3.60 | 1.40 | 8 | 5 | 2 | 7.20 | 4.50 |
| 2026 | 2 | 6 | 18 | 86.0 | 5.65 | 1.36 | 76 | 32 | 27 | 7.95 | 3.35 |
| Career | — | 84 | 66 | 242 | 1323.0 | 3.99 | 1.20 | 1,149 | 326 | 197 | 7.82 | 2.22 |
