Kai-Wei
Teng
PAge : 27Throws : R
#17
Kai-Wei Teng
#17P
Houston Astros
Height : 6' 4" · Weight : 109 kg · Bats : R · Throws : R · MLB debut : 2024-03-31
Born in : Taichung, Taiwan
MLB record
| Year | Team | PJ | V | D | MPM | MJ | RB | WHIP |
|---|---|---|---|---|---|---|---|---|
| 2026 | Houston Astros | 30 | 5 | 7 | 4.76 | 73.2 | 73 | 1.38 |
| 2025 | San Francisco Giants | 8 | 2 | 4 | 6.37 | 29.2 | 39 | 1.55 |
| 2024 | San Francisco Giants | 4 | 0 | 0 | 9.82 | 11.0 | 7 | 2.09 |
| Career totals | 42 | 7 | 11 | 5.67 | 114.1 | 119 | 1.50 | |
Advanced stats, 2026Relief pitcherMLB stats →
ERA
4.76
FIP
4.76
xFIP
4.69
ERA-
116
WHIP
1.38
K%
22.2 %
BB%
10.0 %
Strikeouts
73
Innings
73.7
Wins
5
Stats: MLB (statsapi) and Baseball Savant.
2027 projectionMLB trends →
Projected WAR
0.1
Strikeouts
51
2026 WAR
0.2
This season's pace, over the average of the last two workloads, adjusted for next year's age.
Trend
→ Stable (-3)
- 20250.3 WAR · 0.7 per full season
- 20260.2 WAR · 0.2 per full season
Outlook, age included
+7 · 27 y.o. · prime years
It is only a projection. It knows nothing about injuries, trades or role changes.
Player ratings, 2026All ratings →
Ratings from 0 to 100, computed from Statcast and MLB stats over four seasons, never by hand. 75 = established regular, 87 = 90th percentile, 95+ = elite.
OV · Overall
63
Depth
- VEL
- Velocity
- 67
- STF
- Stuff
- 72
- CTL
- Control
- 70
- CNT
- Contact allowed
- 67
- STA
- Stamina
- —
- DUR
- Durability
- 56
- EX
- Experience
- 47
Why these ratings?Hide details
- VEL — Velocity : Fastball velocity
- STF — Stuff : Strikeouts, K − BB
- CTL — Control : Walks avoided
- CNT — Contact allowed : xwOBA, barrels and hard-hit balls allowed
- STA — Stamina : Innings per start and innings pitched
- DUR — Durability : Games played over several seasons
- EX — Experience : Seasons in the majors
WAR and PAL Rating, 2026How we rate →
WAR is fWAR (FanGraphs' version, distributed through MLB's API): wins added above a replacement player. PAL Rating scores performance from 0 to 100 against regulars in the same role (50 = median).
PAL: dimensions
A pitcher's WAR
Computed by MLB from FIP (strikeouts, walks, home runs). FIP: 4.76 · RA9-WAR: 0.0
StatcastStatcast leaderboards →
MLB's tracking of every ball, 2026 season. The percentile ranks the player among regulars in the role: 90th means better than 90% of them.
Fastball
93.3 mi/h
24th percentile
K%
22.2 %
43th percentile
BB%
10.0 %
42th percentile
xERA
4.95
13th percentile
xwOBA allowed
.339
13th percentile
Barrels allowed
8.1 %
30th percentile
| Season | Team | WAR | PAL | OV | Fastball | K% | BB% | xERA | xwOBA allowed |
|---|---|---|---|---|---|---|---|---|---|
| 2026 | HOU | 0.2 | 16 | 63 | 93.3 | 22.2 | 10.0 | 4.95 | .339 |
| 2025 | SF | 0.3 | 34 | 71 | 93.2 | 28.1 | 12.2 | 4.02 | .311 |
Game log, 2026
| Date | Opponent | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Sep 5 | vs AZ | 0.1 | 0 | 1 | 2 | 1 | 4.76 |
| Sep 1 | vs CWS | 2.0 | 3 | 3 | 1 | 1 | 4.66 |
| Aug 29 | @ NYM | 1.0 | 3 | 2 | 0 | 0 | 4.42 |
| Aug 26 | @ NYY | 0.1 | 0 | 0 | 0 | 0 | 4.22 |
| Aug 23 | vs ATH | 1.2 | 1 | 0 | 0 | 4 | 4.24 |
| Jul 24 | @ CWS | 2.0 | 2 | 2 | 1 | 1 | 4.35 |
| Jul 19 | vs BAL | 2.1 | 1 | 0 | 1 | 3 | 4.21 |
| Jun 27 | @ DET | 3.2 | 8 | 4 | 1 | 1 | 4.36 |
| Jun 21 | vs CLE | 6.0 | 4 | 1 | 1 | 4 | 4.03 |
| Jun 15 | vs DET | 3.1 | 6 | 5 | 2 | 9 | 4.31 |