Madrid 
Rolan Garros 
W100 Oeiras 
Concepcion 1 
Ostrava 
Cagliari 
Savannah 
W100 Tokyo 
Davis Сup Group I Tennis. Played Lo Chien-Hsun. Season 2019
Country 
Taiwan. Ranking ATP 0.
Taiwan. Ranking ATP 0.| Kaohsiung | ||||
|---|---|---|---|---|
| 16.09.2019 | First round | Noguchi Rio — Lo Chien-Hsun | 2:0 (6:2, 6:2) |
|
 Nanchang Challenger | ||||
| 22.04.2019 | First round | Santillan Akira — Lo Chien-Hsun | 2:0 (6:1, 6:2) |
|
| Taipei City Challenger | ||||
| 11.04.2019 | Third round | Ramanathan Ramkumar — Lo Chien-Hsun | 2:1 (4:6, 6:3, 6:2) |
|
| 10.04.2019 | Second round | Lo Chien-Hsun — Baghdatis Marcos (Retired) | 1:1 (6:7, 4:2) |
|
| 08.04.2019 | First round | Altamirano Collin — Lo Chien-Hsun | 1:2 (5:7, 7:5, 3:6) |
|