| Thomas Cup | 2021/10/13 17:20 | Samuel Hsiao v Christo Popov | L | 0-2 |
| Thomas Cup | 2021/10/11 17:00 | Viktor Axelsen v Samuel Hsiao | L | 2-0 |
| Internazionali di Polonia | 2021/09/24 12:40 | Samuel Hsiao v Magnus Johannesen | L | 0-2 |
| Open d'Austria | 2021/05/28 14:05 | Samuel Hsiao v Alex Lanier | L | 1-2 |
| Slovenia Int. | 2021/05/20 10:20 | Samuel Hsiao v Panji Ahmad Maulana | L | 1-2 |
| Portuguese Int. Qual | 2021/05/06 15:20 | Adi Pratama v Samuel Hsiao | L | 2-0 |
| Portuguese Int. Qual | 2021/05/06 12:30 | Samuel Hsiao v Jonas Schwarz | W | 2-1 |
| Masters d'Orleans | 2021/03/24 13:25 | Samuel Hsiao v June Wei Cheam | L | 0-2 |