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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

MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
0 73.2 4.76 1.38 22.2% 10.0%
215th 3
Sv
37th 47.0
IP
239th 4.24
ERA
207th 1.35
WHIP
183rd 22.6%
K%
199th 9.9%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
93.3 11.5% 30.2% 48.7% 6.1% 4.74 4.36
261st 94.6
FB MPH
193rd 12.2%
SwStr%
88th 28.5%
CSW%
260th 51.2%
Str-ICR
289th 4.7%
MTK%
321st 4.94
PLV
300th 3.53
PLA

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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 4.76 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 30 10 73.2 5-7 0 4 4.76 1.38 4.58 4.76 4.69 4.36 22.2% 10.0% 8.4 1.22 .296 19.2% 71.3% 41.9% 42.9% 11.5% 30.2% 0.52 4.74
RP MLB Percentile 39 92 89 80-3 0 45 32 39 32 29 28 15 48 42 43 38 43 37 41 15 46 43 74 59 8
RP MLB AVG 37 2 47.0 3-3 3 6 4.24 1.35 4.23 4.23 4.29 3.53 22.6% 9.9% 8.3 1.11 .289 17.6% 72.6% 36.8% 43.8% 12.2% 28.5% 0.50 4.94
Career 42 17 114.1 7-11 0 4 5.67 1.50 4.75 4.70 4.70 4.47 22.8% 11.1% 8.9 1.10 .319 18.4% 65.5% 39.7% 42.5% 11.4% 29.6% 0.51 4.74

Kai-Wei Teng Repertoire

2024 2025 2026 All
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Kai-Wei Teng Game Log

Kai-Wei Teng Standard

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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 30 10 73.2 5-7 2 0 4 1,266 792 474 329 69 43 14 2 10 73 33 13 5
RP MLB Percentile 39 92 89 80-3 95 0 45 89 90 9 90 10 13 10 6 10 88 10 0 5
RP MLB AVG 37 2 47.0 3-3 0 3 6 793 507 286 204 43 28 8 1 6 46 19 2 2
Career 42 17 114.1 7-11 2 0 4 2,043 1,264 779 523 113 76 21 2 14 119 58 21 6

Kai-Wei Teng Advanced

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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 22.2% 10.0% .245 .415 .766 .342 .296 .330 .231 .334 .272 .367 88.9 89.6 15.8 4.58
RP MLB Percentile 48 42 44 37 31 27 43 41 55 32 59 41 27 45 32 32
RP MLB AVG 22.6% 9.9% .240 .389 .712 .314 .289 .320 .235 .315 .279 .358 87.7 89.2 13.2 4.23
Career 22.8% 11.1% .256 .407 .775 .348 .319 .349 .234 .338 .281 .372 88.9 89.2 15.1 4.75

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 SF5.9% (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 SF24.8% (93.2)12.4% (92.9)--38.6% (84.4)13.8% (83.0)10.3% (87.7)-- 37.2% 62.7%
2026 HOU27.3% (93.3)16.7% (93.2)-1.7% (85.5)35.4% (84.2)9.2% (82.4)9.9% (87.0)-- 43.9% 56.1%
RP MLB Percentile 24 (24) 33 (34) - - 84 (73) 31 (68) 30 (55) - - 34.9% 64.8%
RP MLB AVG 38.6% (94.6) 26.6% (94.0) 20.2% (89.4) 25.8% (85.9) 21.3% (82.4) 15.5% (80.3) 16.7% (86.2) 18.5% (86.6) 43.0% (61.7) 48.5% 51.3%
Career24.4% (93.3)18.2% (93.0)-2.6% (86.3)33.7% (84.2)11.8% (82.5)9.4% (87.2)-- 42.6% 57.3%

Kai-Wei Teng Pitch › Results

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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 SF16.7% (1)26.7% (4)-22.6% (4)15.8% (1)26.7% (7)14.3% (0)-- 25.5% 22.5%
2025 SF26.8% (16)29.6% (1)--36.2% (36)29.1% (7)18.6% (8)-- 27.7% 31.8%
2026 HOU25.8% (29)34.6% (14)-38.1% (6)33.7% (66)30.2% (16)20.8% (15)-- 29.1% 31.0%
RP MLB Percentile 39 (38) 90 (28) - - 78 (2) 60 (24) 46 (32) - - 65.6% 69.3%
RP MLB AVG 27.1% (29) 27.4% (12) 26.7% (13) 29.9% (25) 28.4% (18) 26.9% (12) 21.6% (17) 22.6% (18) 20.1% (9) 27.8% 28.8%
Career25.9% (46)31.7% (19)-28.8% (10)34.0% (103)29.2% (30)19.9% (23)-- 28.4% 30.5%

Kai-Wei Teng Batted Ball › Contact

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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 42.9% 22.4% 24.8% 10.0% 39.0% 41.4% 31.4% 27.1% 15.8% 58.2% 28.1% 5.7% 8.1% 41.9%
RP MLB Percentile 46 43 56 54 21 51 28 64 14 16 17 47 27 15
RP MLB AVG 43.8% 21.6% 24.4% 10.3% 34.6% 40.9% 33.6% 25.5% 18.2% 62.9% 24.5% 5.8% 6.8% 36.8%
Career 42.5% 23.1% 23.4% 11.1% 37.8% 40.6% 32.9% 26.5% 16.3% 60.3% 26.8% 5.8% 7.1% 39.7%

Kai-Wei Teng Batted Ball › Outcomes

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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 .245 .342 .296 .330 .231 .334 .272 .367 88.9 89.6 15.8 19.2% 41.9% 26.7%
RP MLB Percentile 44 27 43 41 55 32 59 41 27 45 32 37 15 29
RP MLB AVG .240 .314 .289 .320 .235 .315 .279 .358 87.7 89.2 13.2 17.6% 36.8% 24.4%
Career .256 .348 .319 .349 .234 .338 .281 .372 88.9 89.2 15.1 18.4% 39.7% 24.7%

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 45.2% 62.6% 43.9% 29.3% 26.3% 15.8% 73.7% 84.4% 55.2% 18.6% 11.5% 30.2% 16.6% 57.1% 0.52 48.7%
RP MLB Percentile 60 34 15 28 54 14 54 52 68 85 43 74 42 34 59 26
RP MLB AVG 44.4% 63.8% 47.4% 31.7% 25.6% 18.2% 74.4% 83.9% 58.6% 16.3% 12.2% 28.5% 17.1% 58.3% 0.50 51.2%
Career 45.1% 61.9% 43.6% 27.9% 26.0% 16.3% 74.0% 86.5% 51.1% 18.3% 11.4% 29.6% 15.9% 56.3% 0.51 49.2%

Kai-Wei Teng Approach › Locations

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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 45.2% 31.0% 22.1% 46.9% 37.7% 25.5% 36.8% 31.6% 46.3% 6.0%
RP MLB Percentile 60 27 95 91 56 17 29 65 73 27
RP MLB AVG 44.4% 34.5% 27.0% 38.5% 36.3% 22.9% 40.8% 29.8% 43.2% 6.6%
Career 45.1% 29.5% 22.0% 48.5% 34.9% 25.1% 40.0% 31.0% 47.1% 6.2%

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 58.4% 13.1% 28.5% 14.2% 59.8% 47.1% 22.9% 25.8% 20.2%
RP MLB Percentile 44 32 29 42 39 26 72 41 60
RP MLB AVG 58.5% 12.1% 29.9% 14.5% 61.0% 50.1% 21.1% 26.8% 19.2%
Career 57.7% 13.1% 29.3% 13.9% 60.9% 48.8% 23.0% 24.7% 19.9%

Kai-Wei Teng PLV

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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 45.2% 14.3% 40.5% 4.7% 7.3% 2.9 +4 4.76
2026 HOU 1,266 4.74 42.1% 18.5% 39.4% 2.7% 6.1% 3.6 +1 4.36
RP MLB Percentile 89 8 11 69 21 21 17 35 40 15
RP MLB AVG 793 4.94 46.0% 17.3% 36.7% 9.3% 4.7% 0.6 -1 3.53
Career 2,043 4.74 43.0% 17.2% 39.7% 3.3% 6.4% 11.9 +12 4.47
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