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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 70.0 4.24 1.33 23.1% 9.7%
213th 3
Sv
38th 44.0
IP
210th 4.24
ERA
191st 1.35
WHIP
181st 22.6%
K%
200th 9.7%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
93.3 11.6% 30.2% 49.0% 6.1% 4.74 4.29
257th 94.6
FB MPH
219th 12.2%
SwStr%
127th 28.6%
CSW%
258th 51.1%
Str-ICR
289th 4.7%
MTK%
319th 4.94
PLV
295th 3.47
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 26 10 70.0 5-6 0 3 4.24 1.33 4.54 4.71 4.40 4.29 23.1% 9.7% 8.1 1.29 .286 22.2% 74.7% 42.1% 43.1% 11.6% 30.2% 0.53 4.74
RP MLB Percentile 32 93 89 82-5 0 41 40 43 34 29 39 16 48 41 48 32 54 22 55 17 49 36 62 53 8
RP MLB AVG 35 2 44.0 2-2 3 6 4.24 1.35 4.24 4.22 4.28 3.47 22.6% 9.7% 8.3 1.12 .290 17.7% 72.6% 37.1% 43.6% 12.2% 28.6% 0.51 4.94
Career 38 17 110.2 7-10 0 3 5.37 1.46 4.73 4.67 4.53 4.43 23.3% 11.0% 8.7 1.14 .314 20.3% 67.1% 39.7% 42.6% 11.4% 29.6% 0.52 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 26 10 70.0 5-6 2 0 3 1,190 747 443 308 63 40 11 2 10 71 30 12 5
RP MLB Percentile 32 93 89 82-5 96 0 41 90 90 9 90 11 13 19 5 8 88 10 0 7
RP MLB AVG 35 2 44.0 2-2 0 3 6 733 468 265 188 40 26 7 1 5 42 18 2 2
Career 38 17 110.2 7-10 2 0 3 1,967 1,219 748 502 107 73 18 2 14 117 55 20 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 23.1% 9.7% .237 .406 .747 .334 .286 .323 .231 .333 .275 .374 89.5 92.1 15.6 4.54
RP MLB Percentile 48 41 51 41 36 31 54 48 54 34 59 41 21 14 35 34
RP MLB AVG 22.6% 9.7% .241 .391 .713 .315 .290 .320 .236 .316 .281 .361 87.7 89.1 13.3 4.24
Career 23.3% 11.0% .251 .401 .764 .344 .314 .345 .234 .338 .283 .376 89.3 90.9 15.0 4.73

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 HOU27.7% (93.3)15.4% (93.3)-1.8% (85.5)35.6% (84.2)9.5% (82.4)10.1% (87.1)-- 43.1% 56.9%
RP MLB Percentile 25 (25) 30 (36) - - 84 (73) 33 (69) 32 (56) - - 32.6% 67.1%
RP MLB AVG 38.2% (94.6) 26.4% (93.9) 20.2% (89.4) 25.6% (85.6) 21.3% (82.4) 16.3% (79.7) 17.1% (86.1) 17.9% (86.6) 32.8% (68.2) 48.4% 51.5%
Career24.6% (93.3)17.5% (93.0)-2.6% (86.3)33.7% (84.3)12.1% (82.5)9.5% (87.3)-- 42.1% 57.9%

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% (27)34.4% (12)-38.1% (6)34.0% (64)31.0% (16)20.0% (13)-- 28.8% 31.2%
RP MLB Percentile 39 (38) 88 (28) - - 80 (2) 63 (24) 38 (34) - - 55.7% 64.3%
RP MLB AVG 27.0% (26) 27.4% (11) 26.7% (13) 29.5% (22) 28.3% (17) 26.9% (11) 21.5% (16) 22.8% (18) 22.0% (9) 27.9% 28.8%
Career25.8% (44)31.4% (17)-28.8% (10)34.2% (101)29.5% (30)19.4% (21)-- 28.1% 30.6%

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 43.1% 23.6% 23.1% 10.3% 39.0% 42.1% 30.3% 27.7% 16.2% 58.0% 27.7% 6.2% 8.2% 42.1%
RP MLB Percentile 49 27 35 57 24 57 21 66 22 18 21 41 33 17
RP MLB AVG 43.6% 21.7% 24.6% 10.1% 34.8% 41.0% 33.7% 25.3% 18.2% 62.6% 24.6% 5.9% 6.9% 37.1%
Career 42.6% 23.9% 22.3% 11.3% 37.7% 41.0% 32.3% 26.8% 16.6% 60.3% 26.5% 6.1% 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 .237 .334 .286 .323 .231 .333 .275 .374 89.5 92.1 15.6 22.2% 42.1% 26.6%
RP MLB Percentile 51 31 54 48 54 34 59 41 21 14 35 22 17 29
RP MLB AVG .241 .315 .290 .320 .236 .316 .281 .361 87.7 89.1 13.3 17.7% 37.1% 24.7%
Career .251 .344 .314 .345 .234 .338 .283 .376 89.3 90.9 15.0 20.3% 39.7% 24.5%

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 45.7% 62.8% 44.2% 28.9% 26.2% 16.2% 73.8% 84.4% 54.5% 18.6% 11.6% 30.2% 16.4% 57.5% 0.53 49.0%
RP MLB Percentile 65 31 17 22 47 22 47 41 67 81 36 62 43 32 53 25
RP MLB AVG 44.5% 63.9% 47.5% 31.8% 25.6% 18.2% 74.4% 83.9% 58.5% 16.4% 12.2% 28.6% 17.1% 58.4% 0.51 51.1%
Career 45.4% 62.0% 43.8% 27.7% 26.0% 16.6% 74.0% 86.5% 50.5% 18.2% 11.4% 29.6% 15.8% 56.5% 0.52 49.5%

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 45.7% 30.8% 22.2% 47.0% 37.9% 25.3% 36.8% 31.9% 45.9% 5.9%
RP MLB Percentile 65 28 97 91 56 22 30 73 71 23
RP MLB AVG 44.5% 34.5% 27.1% 38.4% 36.4% 22.9% 40.7% 29.9% 43.1% 6.6%
Career 45.4% 29.4% 22.0% 48.6% 34.9% 24.9% 40.1% 31.1% 46.8% 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 58.0% 13.1% 28.9% 13.9% 60.3% 47.8% 22.8% 25.3% 20.6%
RP MLB Percentile 39 32 37 45 43 29 67 29 55
RP MLB AVG 58.5% 12.1% 30.0% 14.4% 61.0% 50.2% 21.2% 26.8% 19.2%
Career 57.4% 13.1% 29.5% 13.7% 61.3% 49.2% 22.9% 24.4% 20.1%

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 1,190 4.74 42.9% 17.6% 39.5% 3.4% 6.1% 1.5 -1 4.29
RP MLB Percentile 90 8 16 54 19 19 16 45 53 16
RP MLB AVG 733 4.94 46.0% 17.4% 36.6% 9.3% 4.7% 0.7 0 3.47
Career 1,967 4.74 43.5% 16.7% 39.8% 3.7% 6.4% 9.7 +9 4.43
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