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Kai-Wei Teng
Kai-Wei Teng
Houston Astros • Pitcher
Age 27 • 6' 4" • 241 lb
Bats: R • Throws: R
MLB Debut: 2024-03-31
Born: Taichung • Taiwan
2026 Stats
W
4
L
6
ERA
4.36
WHIP
1.36
IP
64.0
SO
63
SV
0
HLD
3
G
23
GS
10
Career Stats
W
6
L
10
ERA
5.50
WHIP
1.49
IP
104.2
SO
109
SV
0
HLD
3
G
35
GS
17
Year-by-Year Pitching
Year Team GGSIP WLSVSO ERAWHIPAwards
2024 SF 4 — 11.0 — — — 7 9.82 2.09
2025 SF 8 7 29.2 2 4 — 39 6.37 1.55
2026 HOU 23 10 64.0 4 6 — 63 4.36 1.36
Spring Training
Pitching
YearTeamGGSIPWLSVSOERAWHIP
2021 SF 2—1.1 ———— 6.753.75
2025 SF 4—4.0 ——25 0.000.00
2026 HOU 6110.2 1——7 2.530.84
Game Logs
Season selector loads one year at a time.
Pitching
Date Opponent IP H R ER BB SO HR
2026-06-27 @ DET 3.2 8 5 4 1 1 1
2026-06-21 vs CLE 6.0 4 1 1 1 4 0
2026-06-15 vs DET 3.1 6 5 5 2 9 3
2026-06-09 @ LAA 4.0 7 7 5 3 5 0
2026-06-04 vs PIT 5.0 7 5 4 2 1 1
2026-05-29 vs MIL 5.0 3 3 3 4 7 2
2026-05-23 @ CHC 6.0 2 0 0 3 6 0
2026-05-16 vs TEX 5.0 2 0 0 4 7 0
2026-05-10 @ CIN 3.0 5 3 3 1 1 0
2026-05-04 vs LAD 2.0 1 0 0 0 2 0
2026-05-02 @ BOS 1.1 0 0 0 1 2 0
2026-04-28 @ BAL 3.0 5 2 2 0 2 0
2026-04-25 vs NYY 0.1 2 1 1 0 0 1
2026-04-21 @ CLE 2.2 0 0 0 1 2 0
2026-04-19 vs STL 2.0 1 0 0 1 3 0
2026-04-16 vs COL 2.0 1 0 0 0 0 0
2026-04-14 vs COL 1.1 0 1 1 2 2 0
2026-04-11 @ SEA 0.2 0 0 0 1 2 0
2026-04-08 @ COL 1.1 0 0 0 0 1 0
2026-04-07 @ COL 0.2 1 1 1 0 0 1
2026-04-04 @ ATH 2.1 2 0 0 0 3 0
2026-04-01 vs BOS 1.0 1 1 1 0 1 1
2026-03-28 vs LAA 2.1 1 0 0 1 2 0
Transactions
Entire history • newest first.
2026-07-17
Houston Astros activated RHP Kai-Wei Teng from the 15-day injured list.
2026-07-10
Houston Astros sent RHP Kai-Wei Teng on a rehab assignment to FCL Astros.
2026-07-10
Houston Astros sent RHP Kai-Wei Teng on a rehab assignment to FCL Astros.
2026-04-16
RHP Kai-Wei Teng changed number to 17.
2026-04-15
RHP Kai-Wei Teng changed number to 42.
2026-01-30
San Francisco Giants traded RHP Kai-Wei Teng to Houston Astros for C Jancel Villarroel and Future Considerations.
2025-08-31
San Francisco Giants recalled RHP Kai-Wei Teng from Sacramento River Cats.
2025-08-21
San Francisco Giants optioned RHP Kai-Wei Teng to Sacramento River Cats.
2025-08-01
San Francisco Giants selected the contract of RHP Kai-Wei Teng from Sacramento River Cats.
2024-11-29
San Francisco Giants signed free agent RHP Kai-Wei Teng to a minor league contract.
2024-11-29
RHP Kai-Wei Teng roster status changed by San Francisco Giants.
2024-11-22
RHP Kai-Wei Teng elected free agency.
2024-11-19
San Francisco Giants designated RHP Kai-Wei Teng for assignment.
2024-10-01
San Francisco Giants recalled RHP Kai-Wei Teng from Sacramento River Cats.
2024-04-20
San Francisco Giants optioned RHP Kai-Wei Teng to Sacramento River Cats.
2024-03-29
San Francisco Giants recalled RHP Kai-Wei Teng from Sacramento River Cats.
2024-03-11
San Francisco Giants optioned RHP Kai-Wei Teng to Sacramento River Cats.
2023-11-14
San Francisco Giants selected the contract of RHP Kai-Wei Teng from Sacramento River Cats.
2021-02-17
San Francisco Giants invited non-roster RHP Kai-Wei Teng to spring training.
2021-02-17
P Kai-Wei Teng assigned to San Francisco Giants .
2019-07-31
San Francisco Giants traded RHP Sam Dyson to Minnesota Twins for RF Jaylin Davis, RHP Kai-Wei Teng and RHP Prelander Berroa.
2017-10-20
Minnesota Twins signed free agent RHP Kai-Wei Teng to a minor league contract.
Scouting Report
Statcast-style percentiles • Basenerd theme
Season 2026
Ready
Basic Line
Season / Game
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Pitch Arsenal
Usage • Velo • Break • Spin • xwOBA
Pitch N Use% Velo HB IVB Spin xwOBA Whiff% Zone% Chase% BNStuff+ BNCtrl+
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Notes
Primary pitch summary
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Movement Profile (Induced Break)
Pitcher's View: HB vs Rise / Drop (in)
Circles: 12/18/24 in • Dots = pitch types (size ~ pitch count)
Pitch Location Heatmaps
KDE-style blur • fixed zone • catcher POV
vs. LHH
vs. RHH
Zone: left -0.7083 / right 0.7083 • bot 1.595 / top 3.394 • Domain: X [-2,2], Z [0,5]
Statcast Game Log
Per-game pitch metrics from Statcast
Date Pitches Velo BNStuff+ BNCtrl+ Whiff% Zone% Chase% K% BB% xwOBA
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