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Kai-Wei Teng

#17 - Relief Pitcher

Houston Astros

Bats / Throws Right / Right
Date of Birth 12/1/1998 (27)
Height, Weight 6'4", 241 lb
Hometown Taichung, TWN

2026 Season Stats

Needs more playing time to qualify
MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
0 16.2 2.16 0.90 25.0% 9.4%
- 1
Sv
- 9.0
IP
- 5.72
ERA
- 1.60
WHIP
- 22.0%
K%
- 11.3%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
94.9 9.7% 28.4% 52.9% 3.5% 5.18 2.49
- 94.2
FB MPH
- 11.9%
SwStr%
- 28.4%
CSW%
- 49.6%
Str-ICR
- 4.2%
MTK%
- 4.96
PLV
- 3.75
PLA
Saves List
Rank
48th
Holds List
Rank
58th
Saves+Holds List
Rank
81st

Articles

4/25/2026Relief Pitcher Streamer Rankings Fantasy Baseball: 4/25Rick Graham

4/24/2026Waiver Relief: Week 5Alex Kamberis

4/24/2026Relief Pitcher Streamer Rankings Fantasy Baseball: 4/24Rick Graham

4/23/2026Fantasy Reliever Rankings: Closers, Holds & SOLDs - 4/23Rick Graham

4/23/2026Relief Pitcher Streamer Rankings Fantasy Baseball: 4/23Rick Graham

See More Articles
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Kai-Wei Teng Overview

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team G GS IP W-L Sv Hld ERA WHIP xERA FIP xFIP PLA K% BB% H/9 HR/9 BABIP HR/FB% LOB% ICR GB% SwStr% CSW% IPR PLV
2024 SF 4 0 11.0 0-0 0 0 9.82 2.09 9.24 6.71 5.43 4.45 12.7% 14.5% 12.3 1.64 .351 40.0% 56.6% 41.0% 46.2% 8.3% 24.0% 0.24 4.76
2025 SF 8 7 29.2 2-4 0 0 6.37 1.55 3.49 3.82 4.52 4.77 28.1% 12.2% 8.8 0.61 .365 10.5% 57.8% 32.9% 39.5% 12.0% 30.4% 0.59 4.74
2026 HOU 11 0 16.2 1-1 0 2 2.16 0.90 2.93 4.67 3.80 2.49 25.0% 9.4% 4.9 1.62 .154 27.3% 100.0% 31.0% 47.6% 9.7% 28.4% 0.50 5.18
RP MLB Percentile - - - --- - - - - - - - - - - - - - - - - - - - - -
RP MLB AVG 7 0 9.0 0-1 1 1 5.72 1.60 4.89 5.34 4.80 3.75 22.0% 11.3% 9.5 1.29 .308 19.1% 71.6% 38.5% 43.3% 11.9% 28.4% 0.48 4.96
Career 23 7 57.1 3-5 0 2 5.81 1.47 4.43 4.61 4.47 4.05 24.0% 12.0% 8.3 1.10 .307 20.0% 63.3% 34.4% 43.3% 10.7% 28.6% 0.50 4.85

Kai-Wei Teng Repertoire

2024 2025 2026 All
Hide MLB Percentile | Hide MLB Average

Kai-Wei Teng Game Log

Kai-Wei Teng Standard

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team G GS IP W-L QS Sv Hld P Strikes Balls TBF H 1B 2B 3B HR K BB HB WP
2024 SF 4 0 11.0 0-0 0 0 0 204 116 88 55 15 11 2 0 2 7 8 1 1
2025 SF 8 7 29.2 2-4 0 0 0 573 356 217 139 29 22 5 0 2 39 17 7 0
2026 HOU 11 0 16.2 1-1 0 0 2 257 162 95 64 9 6 0 0 3 16 6 0 2
RP MLB Percentile - - - --- - - - - - - - - - - - - - - - -
RP MLB AVG 7 0 9.0 0-1 0 1 1 169 107 63 43 9 6 2 0 1 10 5 1 1
Career 23 7 57.1 3-5 0 0 2 1,034 634 400 258 53 39 7 0 7 62 31 8 3

Kai-Wei Teng Advanced

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team K% BB% AVG SLG OPS wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA xERA
2024 SF 12.7% 14.5% .326 .500 .936 .410 .351 .385 .356 .471 .370 .505 89.5 94.4 13.5 9.24
2025 SF 28.1% 12.2% .254 .351 .732 .335 .365 .382 .192 .292 .262 .313 88.6 86.9 14.3 3.49
2026 HOU 25.0% 9.4% .155 .310 .544 .249 .154 .214 .191 .271 .226 .312 88.0 92.1 15.8 2.93
RP MLB Percentile - - - - - - - - - - - - - - - -
RP MLB AVG 22.0% 11.3% .257 .415 .761 .338 .308 .339 .248 .337 .293 .382 88.4 89.6 13.4 4.89
Career 24.0% 12.0% .243 .372 .729 .336 .307 .338 .226 .331 .278 .367 88.7 89.6 14.5 4.43

Kai-Wei Teng Pitch › Mix

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Year Team FF% (MPH) SI% (MPH) FC% (MPH) SL% (MPH) ST% (MPH) CB% (MPH) CH% (MPH) FS% (MPH) KN% (MPH) Fastball% Secondary%
2024 SF 5.9% (93.6) 44.1% (92.7) - 15.2% (86.9) 9.3% (83.3) 22.1% (82.0) 3.4% (88.1) - - 50.0% 50.0%
2025 SF 24.8% (93.2) 12.4% (92.9) - - 38.6% (84.4) 13.8% (83.0) 10.3% (87.7) - - 37.2% 62.7%
2026 HOU 29.2% (94.9) 18.7% (94.1) - - 37.4% (85.3) 7.8% (82.9) 7.0% (88.3) - - 47.9% 52.1%
RP MLB Percentile - - - - - - - - - - -
RP MLB AVG 34.7% (94.2) 26.8% (93.8) 21.2% (89.2) 27.9% (85.5) 23.2% (82.5) 18.1% (80.8) 19.1% (86.0) 19.9% (86.5) - (-) 47.3% 52.6%
Career 22.1% (93.8) 20.2% (93.1) - 3.0% (86.9) 32.5% (86.9) 13.9% (82.7) 8.1% (87.9) - - 42.4% 57.5%

Kai-Wei Teng Pitch › Results

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team FF CSW% SI CSW% FC CSW% SL CSW% ST CSW% CB CSW% CH CSW% FS CSW% KN CSW% Fastball CSW% Secondary CSW%
2024 SF 16.7% (1) 26.7% (4) - 22.6% (4) 15.8% (1) 26.7% (7) 14.3% (0) - - 25.5% 22.5%
2025 SF 26.8% (16) 29.6% (1) - - 36.2% (36) 29.1% (7) 18.6% (8) - - 27.7% 32.0%
2026 HOU 21.3% (5) 39.6% (3) - - 31.3% (15) 30.0% (1) 11.1% (1) - - 28.5% 28.4%
RP MLB Percentile - - - - - - - - - - -
RP MLB AVG 26.5% (6) 27.9% (3) 28.0% (4) 31.0% (6) 28.7% (6) 28.0% (4) 22.4% (5) 25.0% (7) - (-) 27.9% 28.4%
Career 24.5% (22) 30.6% (8) - 22.6% (4) 33.6% (52) 28.5% (15) 16.7% (9) - - 27.4% 29.6%

Kai-Wei Teng Batted Ball › Contact

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team GB% LD% FB% PU% SS% Pull% Cent% Oppo% Foul Str% PC% Fl&B% Solid% Brl% ICR
2024 SF 46.2% 23.1% 12.8% 17.9% 33.3% 35.9% 35.9% 28.2% 13.7% 59.0% 25.6% 7.7% 7.7% 41.0%
2025 SF 39.5% 25.0% 25.0% 10.5% 36.8% 40.8% 35.5% 23.7% 18.5% 67.0% 23.7% 5.3% 3.9% 32.9%
2026 HOU 47.6% 16.7% 26.2% 9.5% 31.0% 47.6% 21.4% 31.0% 18.3% 69.1% 23.8% 4.8% 2.4% 31.0%
RP MLB Percentile - - - - - - - - - - - - - -
RP MLB AVG 43.3% 22.1% 24.5% 10.1% 35.4% 41.6% 33.6% 24.8% 17.3% 61.3% 25.0% 5.9% 7.9% 38.5%
Career 43.3% 22.3% 22.3% 12.1% 34.4% 41.4% 31.8% 26.8% 17.5% 65.5% 24.2% 5.7% 4.5% 34.4%

Kai-Wei Teng Batted Ball › Outcomes

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team AVG wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA HR/FB ICR IPA%
2024 SF .326 .410 .351 .385 .356 .471 .370 .505 89.5 94.4 13.5 40.0% 41.0% 29.1%
2025 SF .254 .335 .365 .382 .192 .292 .262 .313 88.6 86.9 14.3 10.5% 32.9% 18.0%
2026 HOU .155 .249 .154 .214 .191 .271 .226 .312 88.0 92.1 15.8 27.3% 31.0% 20.3%
RP MLB Percentile - - - - - - - - - - - - - -
RP MLB AVG .257 .338 .308 .339 .248 .337 .293 .382 88.4 89.6 13.4 19.1% 38.5% 25.1%
Career .243 .336 .307 .338 .226 .331 .278 .367 88.7 89.6 14.5 20.0% 34.4% 20.9%

Kai-Wei Teng Approach › Plate Discipline

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Year Team Zone% Str% Swing% O-Sw% Whiff% Foul Str% Con% Z-Con% O-Con% CS% SwStr% CSW% BIP% PLUS% IPR Str-ICR
2024 SF 43.1% 56.9% 41.2% 19.8% 20.2% 13.7% 79.8% 90.2% 52.2% 15.7% 8.3% 24.0% 19.1% 49.5% 0.24 41.2%
2025 SF 45.7% 62.1% 43.8% 28.0% 27.5% 18.5% 72.5% 89.6% 41.4% 18.3% 12.0% 30.4% 13.3% 57.1% 0.59 53.4%
2026 HOU 45.5% 63.0% 44.4% 30.0% 21.9% 18.3% 78.1% 84.7% 66.7% 18.7% 9.7% 28.4% 16.3% 59.5% 0.50 52.9%
RP MLB Percentile - - - - - - - - - - - - - - - -
RP MLB AVG 43.9% 62.6% 46.1% 30.3% 25.6% 17.3% 74.4% 83.8% 58.4% 16.5% 11.9% 28.4% 16.8% 57.0% 0.48 49.6%
Career 45.2% 61.3% 43.4% 26.8% 24.7% 17.5% 75.3% 88.5% 50.0% 17.9% 10.7% 28.6% 15.2% 56.2% 0.50 50.9%

Kai-Wei Teng Approach › Locations

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2024 SF 43.1% 31.4% 20.6% 48.0% 28.9% 21.1% 50.0% 32.4% 47.1% 3.9%
2025 SF 45.7% 25.7% 22.2% 52.1% 30.9% 25.5% 43.5% 29.0% 48.8% 7.5%
2026 HOU 45.5% 29.2% 21.0% 49.8% 37.0% 29.6% 33.5% 30.0% 49.0% 6.6%
RP MLB Percentile - - - - - - - - - -
RP MLB AVG 43.9% 34.8% 26.4% 38.8% 36.2% 22.7% 41.0% 30.3% 43.4% 6.3%
Career 45.2% 27.7% 21.6% 50.7% 32.0% 25.7% 42.3% 29.9% 48.5% 6.6%

Kai-Wei Teng Approach › Counts

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Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2024 SF 60.8% 15.7% 23.5% 16.1% 50.9% 41.8% 17.7% 12.5% 14.6%
2025 SF 55.0% 12.0% 33.0% 12.4% 67.6% 55.4% 25.4% 25.9% 20.6%
2026 HOU 53.7% 14.4% 31.9% 13.8% 56.3% 43.8% 21.7% 26.8% 19.5%
RP MLB Percentile - - - - - - - - -
RP MLB AVG 58.5% 13.1% 29.0% 13.7% 59.5% 49.7% 21.1% 26.3% 19.6%
Career 55.8% 13.3% 30.9% 13.5% 61.2% 49.6% 22.9% 24.1% 19.4%

Kai-Wei Teng PLV

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2024 SF 204 4.76 42.6% 17.6% 39.7% 2.9% 5.4% 5.3 +6 4.45
2025 SF 573 4.74 45.0% 14.5% 40.5% 4.5% 7.5% 2.9 +4 4.77
2026 HOU 257 5.18 49.8% 18.3% 31.9% 17.9% 3.5% -1.7 -4 2.49
RP MLB Percentile - - - - - - - - - -
RP MLB AVG 169 4.96 45.8% 17.9% 36.3% 9.5% 4.2% 1.5 +1 3.75
Career 1,034 4.85 45.7% 16.1% 38.2% 7.5% 6.1% 6.5 +6 4.05
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