| Window | G | IP | ERA | WHIP | K | BB |
|---|---|---|---|---|---|---|
| Last 7 days | 1 | 6 | 12.00 | 2.00 | 4 | 4 |
| Last 30 days | 5 | 25 | 5.04 | 1.28 | 20 | 7 |
| 2026 season | 20 | 96 | 5.34 | 1.35 | 61 | 30 |
How Zack 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 | 62 | 6.64 | 1.48 | 39 | 23 | 20 |
| In relief | 33 | 2.94 | 1.13 | 22 | 7 | 5 |
| Home | 55 | 5.37 | 1.36 | 38 | 15 | 14 |
| Away | 40 | 5.31 |
Last appearance · Jul 18 · 96 pitches
| Pitch | Count | Usage | Avg Velo | Max |
|---|---|---|---|---|
SplitterFS | 28 | 29% | 83.3 mph | 85.5 |
SliderSL | 27 | 28% | 87.5 mph | 89.2 |
SinkerSI | 19 | 20% | 90.9 mph | 92.2 |
Four-Seam FastballFF | 15 | 16% | 91.1 mph | 93.4 |
SweeperST | 7 | 7% | 79.1 mph | 80.5 |
| Date | Opp | IP | H | R | ER | BB | K | HR | ERA |
|---|---|---|---|---|---|---|---|---|---|
| 2026-07-18 | @ Athletics | 6 | 8 | 8 | 8 | 4 | 4 | 2 | 5.34 |
| 2026-07-10 | vs New York Yankees | 4 | 5 |
| Year | Team | W | L | G | IP | ERA | WHIP | K | BB | HR | K/9 | BB/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | Minnesota Twins | 0 | 2 | 8 | 20.1 | 6.20 | 1.77 | 14 | 11 | 3 | 6.20 | 4.87 |
| 1.35 |
| 23 |
| 15 |
| 11 |
| 1 |
| 1 |
| 0 |
| 5 |
| 1 |
| 4.90 |
| 2026-07-04 | vs Pittsburgh Pirates | 6 | 4 | 1 | 1 | 1 | 3 | 0 | 5.02 |
| 2026-06-28 | @ Baltimore Orioles | 5 | 3 | 2 | 2 | 2 | 3 | 1 | 5.29 |
| 2026-06-23 | vs Philadelphia Phillies | 4 | 5 | 2 | 2 | 0 | 5 | 1 | 5.40 |
| 2026-06-17 | vs Kansas City Royals | 5 | 7 | 4 | 4 | 2 | 2 | 4 | 5.45 |
| 2026-06-12 | vs Seattle Mariners | 1 | 4 | 5 | 5 | 1 | 0 | 1 | 5.32 |
| 2026-06-06 | @ Arizona Diamondbacks | 5 | 2 | 1 | 1 | 1 | 4 | 0 | 4.76 |
| 2026-05-31 | vs San Diego Padres | 6 | 5 | 2 | 2 | 2 | 5 | 0 | 5.01 |
| 2026-05-25 | @ Cleveland Guardians | 7 | 5 | 1 | 1 | 2 | 7 | 0 | 5.23 |
| 2019 |
| Minnesota Twins |
| 6 |
| 0 |
| 29 |
| 37.0 |
| 2.68 |
| 1.16 |
| 32 |
| 9 |
| 4 |
| 7.78 |
| 2.19 |
| 2020 | Minnesota Twins | 0 | 0 | 6 | 6.1 | 9.95 | 2.37 | 3 | 3 | 5 | 4.26 | 4.26 |
| 2021 | San Francisco Giants | 4 | 0 | 63 | 61.2 | 2.92 | 1.14 | 63 | 24 | 7 | 9.19 | 3.50 |
| 2022 | San Francisco Giants | 3 | 3 | 39 | 44.1 | 5.08 | 1.38 | 39 | 13 | 8 | 7.92 | 2.64 |
| 2023 | Boston Red Sox | 0 | 0 | 2 | 3.0 | 9.00 | 2.00 | 2 | 3 | 0 | 6.00 | 9.00 |
| 2023 | Tampa Bay Rays | 3 | 6 | 26 | 87.0 | 3.93 | 1.15 | 72 | 9 | 13 | 7.45 | 0.93 |
| 2023 | 3 | 6 | 28 | 90.0 | 4.10 | 1.18 | 74 | 12 | 13 | 7.40 | 1.20 |
| 2024 | Tampa Bay Rays | 8 | 10 | 29 | 156.1 | 3.63 | 1.25 | 141 | 31 | 22 | 8.12 | 1.78 |
| 2025 | Tampa Bay Rays | 8 | 8 | 22 | 133.1 | 3.58 | 1.12 | 89 | 21 | 26 | 6.01 | 1.42 |
| 2025 | Cincinnati Reds | 2 | 0 | 10 | 53.1 | 4.39 | 1.07 | 41 | 11 | 10 | 6.92 | 1.86 |
| 2025 | 10 | 8 | 32 | 186.2 | 3.81 | 1.10 | 130 | 32 | 36 | 6.27 | 1.54 |
| 2026 | Washington Nationals | 7 | 7 | 20 | 96.0 | 5.34 | 1.35 | 61 | 30 | 25 | 5.72 | 2.81 |
| Career | — | 41 | 36 | 254 | 698.2 | 4.08 | 1.23 | 557 | 165 | 123 | 7.18 | 2.13 |
