| WTT - Contender Lima - Calificari | 06/15 22:30 | - | Chien-An Chen v Samuel Walker | W | 3-1 | |
| WTT - Contender Lima - Calificari | 06/15 16:30 | - | Chien-An Chen v Martin Bentancor | W | 3-0 | |
| WTT - Contender Lima - Calificari | 06/14 22:00 | - | Chen Chien An v Luka Mladenovic | W | 3-2 | |
| WTT Singapore Smash | 03/11 10:30 | 6 | Chien-An Chen v Tomislav Pucar | L | 2-3 | |
| WTT Singapore Smash | 03/09 09:35 | - | Chen Chien An v Martin Allegro | W | 3-2 | |
| WTT Singapore Smash | 03/08 10:45 | - | Chien-An Chen v Frane Kojic | W | 3-2 | |
| WTT Singapore Smash | 03/07 03:10 | - | Chien-An Chen v Alexandre Robinot | W | 3-0 | |
| World Championship | 11/24 00:40 | 57 | Marek Badowski v Chien-An Chen | L | 4-1 | |
| Campionatul Asiatic | 10/01 16:09 | - | Woojin Jang v Chen Chien An | L | 3-1 | |
| Campionatul Asiatic | 10/01 10:31 | - | Shunsuke Togami v Chien-An Chen | W | 2-3 | |
| Campionatul Asiatic | 10/01 08:31 | - | Yuto Kizukuri v Chen Chien An | W | 0-3 | |
| WTT Star Contender - Doha | 09/22 12:30 | 6 | Chien-An Chen v Ricardo Walther | L | 2-3 | |
| Jocurile Olimpice 2020 - Echipe - Masculin 2020 | 08/03 06:30 | 3 | Chien-An Chen v Timo Boll | L | 0-3 | |
| WTT Star Contender - Doha | 03/07 08:45 | - | Chien-An Chen v Noshad Alamiyan | L | 0-3 | |
| WTT Contender - Doha | 03/01 07:00 | - | Chien-An Chen v Benedek Olah | L | 1-3 | |
| Portugalia - Open | 02/14 20:00 | 5 | Chien-An Chen v Mihai Bobocica | L | 3-4 | |
| Portugalia - Open | 02/14 14:50 | 6 | Chien-An Chen v Tom Jarvis | W | 4-2 | |
| Team World Cup | 11/08 05:00 | - | Paul Drinkhall v Chien An Chen | W | 0-3 | |
| Team World Cup | 11/07 02:00 | - | Chien An Chen v Quadri Aruna | L | 2-3 | |
| Team World Cup | 11/06 09:00 | - | Xin Xu v Chien-An Chen | L | 3-0 | |
| German Open | 10/08 19:15 | - | Chien An Chen v Wen Sun | L | 3-4 | |
| Japonia - T League | 09/07 04:30 | - | Chen Chien An v Masataka Morizono | L | 0-3 | |
| Japonia - T League | 09/06 11:02 | - | Chen Chien An v Koki Niwa | L | 2-3 | |
| Japonia - T League | 08/31 09:30 | - | Koki Niwa v Chien An Chen | L | 3-0 | |
| Czech Open | 08/22 14:20 | 5 | Yun-Ju Lin v Chien An Chen | L | 4-3 | |
| Czech Open | 08/21 10:50 | - | Chien An Chen v Linfeng Zhu | W | 4-1 | |
| Bulgaria Open | 08/16 17:30 | 4 | Tomokazu Harimoto v Chien-An Chen | L | 4-2 | |
| Bulgaria Open | 08/15 12:55 | 5 | Chien-An Chen v Youngsik Jeoung | W | 4-2 | |
| Bulgaria Open | 08/14 10:20 | - | Chien-An Chen v Tristan Flore | W | 4-0 | |
| Korea Open | 07/03 09:00 | - | Chuqin Wang v Chien-An Chen | L | 4-0 |