P | Athletics
Bats/Throws: R/R | 6' 1" 198 lbs | Age: 25
MLB Pipeline Rank
Athletics: No. 29
W L ERA G GS SV IP SO WHIP
2025 6 11 4.08 28 26 0 145.2 145 1.28
Career Minors 12 17 3.55 59 49 1 273.2 272 1.16
G W-L ERA IP SO WHIP
2025 28 6-11 4.08 145.2 145 1.28
Career Minors 59 12-17 3.55 273.2 272 1.16
  • ▾

Standard Minor League Pitching Statistics

SeasonTmLGLWLERAGGSSVIPHRERHRBBSOWHIP
2022 Stockton Ports CAL A 0 4 4.71 8 8 0 42.0 46 35 22 9 9 43 1.31
2024 3 Teams Minors 6 2 2.09 23 15 1 86.0 64 21 20 5 12 84 0.88
2024 Stockton Ports CAL A 3 2 1.67 9 5 0 32.1 26 6 6 1 4 37 0.93
2024 Lansing Lugnuts MID A+ 2 0 2.56 9 6 0 31.2 23 9 9 2 3 29 0.82
2024 Midland RockHounds TEX AA 1 0 2.05 5 4 1 22.0 15 6 5 2 5 18 0.91
2025 Midland RockHounds TEX AA 6 11 4.08 28 26 0 145.2 151 79 66 22 35 145 1.28
Midland RockHounds TEX AA 7 11 3.81 33 30 1 167.2 166 85 71 24 40 163 1.23
Lansing Lugnuts MID A+ 2 0 2.56 9 6 0 31.2 23 9 9 2 3 29 0.82
Stockton Ports CAL A 3 6 3.39 17 13 0 74.1 72 41 28 10 13 80 1.14

Scouting Report

2025

Scouting grades: Fastball: 45 | Curveball: 45 | Slider: 50 | Changeup: 55 | Control: 55 | Overall: 40

Zhuang signed with the A’s out of Taiwan in November 2021 after participating in the U-23 Baseball World Cup. On the older side as a 21-year-old at the time of his signing, he has risen through the system with success at each level. His 2024 campaign began at Single-A Stockton, went through High-A Lansing and ended at Double-A Midland. Across the three levels, he combined to post a 2.09 ERA in 23 games (15 starts) with 84 strikeouts and 12 walks over 86 innings. His surge through the organization helped him earn a spot on the Chinese Taipei roster for the WBC qualifiers this spring.

Zhuang relies heavily on his four-seam fastball, which can touch 95 mph but normally hovers in the 90-93 range. He also throws a low-80s split-finger offering with good diving action. His arsenal is rounded out by a low-80s slider, a mid-70s curveball with good bend and a low-80s changeup.

Zhuang does have a history of injuries, which brings some real concern as to whether he can hold up as a starter despite having the necessary pitch mix for the role. He can command it well, as evidenced by his low walk numbers. For now, the A’s are enjoying watching the rise of the man many in the organization have nicknamed ‘Z-Man.’ He is firmly on their prospect radar, and his age could actually help him move up quickly if the success continues.


Transactions

Team Date Transaction
11/18/2025 Athletics selected the contract of RHP Chen Zhong-Ao Zhuang from Midland RockHounds.
03/06/2025 activated RHP Chen Zhong-Ao Zhuang.
02/03/2025 RHP Chen Zhong-Ao Zhuang assigned to Chinese Taipei.
01/17/2025 Athletics invited non-roster RHP Chen Zhong-Ao Zhuang to spring training.
10/02/2024 Midland RockHounds activated RHP Chen Zhong-Ao Zhuang from the 7-day injured list.
08/31/2024 Midland RockHounds placed RHP Chen Zhong-Ao Zhuang on the 7-day injured list.
07/30/2024 RHP Chen Zhong-Ao Zhuang assigned to Midland RockHounds from Lansing Lugnuts.
07/04/2024 Lansing Lugnuts activated RHP Chen Zhong-Ao Zhuang from the temporarily inactive list.
06/28/2024 Lansing Lugnuts placed RHP Chen Zhong-Ao Zhuang on the temporarily inactive list.
05/29/2024 RHP Chen Zhong-Ao Zhuang assigned to Lansing Lugnuts from Stockton Ports.
11/06/2023 Stockton Ports activated RHP Chen Zhong-Ao Zhuang from the 60-day injured list.
07/20/2023 Stockton Ports transferred RHP Chen Zhong-Ao Zhuang from the 7-day injured list to the 60-day injured list.
04/06/2023 Stockton Ports placed RHP Chen Zhong-Ao Zhuang on the 7-day injured list.
09/30/2022 Stockton Ports activated RHP Chen Zhong-Ao Zhuang from the 7-day injured list.
09/30/2022 Stockton Ports activated RHP Chen Zhong-Ao Zhuang from the 7-day injured list.
06/09/2022 Stockton Ports placed RHP Chen Zhong-Ao Zhuang on the 7-day injured list.
06/09/2022 Stockton Ports placed RHP Chen Zhong-Ao Zhuang on the 7-day injured list.
04/05/2022 RHP Chen Zhong-Ao Zhuang assigned to Stockton Ports.
11/24/2021 Oakland Athletics signed free agent RHP Chen Zhong-Ao Zhuang to a minor league contract.