| Window | G | IP | ERA | WHIP | K | BB |
|---|---|---|---|---|---|---|
| Last 30 days | 4 | 3 | 14.73 | 2.45 | 2 | 3 |
| 2026 season | 30 | 73 | 4.76 | 1.38 | 73 | 33 |
How Kai-Wei 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 | 44 | 5.52 | 1.59 | 43 | 21 | 7 |
| In relief | 29 | 3.64 | 1.08 | 30 | 12 | 3 |
| Home | 41 | 4.32 | 1.32 | 47 | 21 | 8 |
| Away | 32 | 5.34 |
Last appearance · Sep 5 · 17 pitches
| Pitch | Count | Usage | Avg Velo | Max |
|---|---|---|---|---|
SinkerSI | 7 | 41% | 92.7 mph | 93.7 |
SweeperST | 7 | 41% | 84.0 mph | 84.7 |
CurveballCU | 1 | 6% | 81.4 mph | 81.4 |
ChangeupCH | 1 | 6% | 87.0 mph | 87.0 |
Four-Seam FastballFF | 1 | 6% | 93.7 mph | 93.7 |
| Date | Opp | IP | H | R | ER | BB | K | HR | ERA |
|---|---|---|---|---|---|---|---|---|---|
| 2026-09-05 | vs Arizona Diamondbacks | 0 | 0 | 1 | 1 | 2 | 1 | 0 | 4.76 |
| 2026-09-01 | vs Chicago White Sox | 2 | 3 |
| Year | Team | W | L | G | IP | ERA | WHIP | K | BB | HR | K/9 | BB/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | San Francisco Giants | 0 | 0 | 4 | 11.0 | 9.82 | 2.09 | 7 | 8 | 2 | 5.73 | 6.55 |
| 1.47 |
| 26 |
| 12 |
| 2 |
| 3 |
| 3 |
| 1 |
| 1 |
| 0 |
| 4.66 |
| 2026-08-29 | @ New York Mets | 1 | 3 | 2 | 2 | 0 | 0 | 0 | 4.42 |
| 2026-08-26 | @ New York Yankees | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.22 |
| 2026-08-23 | vs Athletics | 1 | 1 | 0 | 0 | 0 | 4 | 0 | 4.24 |
| 2026-07-24 | @ Chicago White Sox | 2 | 2 | 2 | 2 | 1 | 1 | 0 | 4.35 |
| 2026-07-19 | vs Baltimore Orioles | 2 | 1 | 0 | 0 | 1 | 3 | 0 | 4.21 |
| 2026-06-27 | @ Detroit Tigers | 3 | 8 | 5 | 4 | 1 | 1 | 1 | 4.36 |
| 2026-06-21 | vs Cleveland Guardians | 6 | 4 | 1 | 1 | 1 | 4 | 0 | 4.03 |
| 2026-06-15 | vs Detroit Tigers | 3 | 6 | 5 | 5 | 2 | 9 | 3 | 4.31 |
| 2025 |
| San Francisco Giants |
| 2 |
| 4 |
| 8 |
| 29.2 |
| 6.37 |
| 1.55 |
| 39 |
| 17 |
| 2 |
| 11.83 |
| 5.16 |
| 2026 | Houston Astros | 5 | 7 | 30 | 73.2 | 4.76 | 1.38 | 73 | 33 | 10 | 8.92 | 4.03 |
| Career | — | 7 | 11 | 42 | 114.1 | 5.67 | 1.50 | 119 | 58 | 14 | 9.37 | 4.57 |
