Stadium: Court 1 Round: 25 Ground: Hardcourt indoor
| Challenger Knoxville | 2021/11/10 19:45 | Christopher Eubanks v Go Soeda | 6-3,2-6,7-6 |
| Challenger Knoxville | 2021/11/08 17:50 | Go Soeda v Malek Jaziri | 6-4,7-6 |
| Challenger Charlottesville | 2021/11/03 16:00 | Emilio Nava v Go Soeda | 2-6,7-6,6-2 |
| Challenger Charlottesville | 2021/11/01 18:35 | Tatsuma Ito v Go Soeda | 6-7,5-7 |
| Challenger Biel | 2021/09/22 15:40 | Alexander Shevchenko v Go Soeda | 7-6,6-4 |
| Challenger Rennes | 2021/09/13 12:50 | Go Soeda v Tristan Lamasine | 6-7,4-6 |
| Challenger Cassis | 2021/09/07 08:00 | Hugo Grenier v Go Soeda | 6-4,6-7,6-1 |
| Challenger Saint-Tropez | 2021/08/31 08:30 | Dragos Nicolae Madaras v Go Soeda | 2-6,6-4,6-3 |
| Challenger Knoxville | 2021/11/09 17:10 | Blaz Rola v Thai-Son Kwiatkowski | 6-3,7-6 |
| Challenger Charlottesville | 2021/11/05 19:25 | Jeffrey John Wolf v Thai-Son Kwiatkowski | 7-5,6-4 |
| Challenger Charlottesville | 2021/11/04 20:00 | Yosuke Watanuki v Thai-Son Kwiatkowski | 6-7,1-6 |
| Challenger Charlottesville | 2021/11/02 23:10 | Thai-Son Kwiatkowski v Blaz Rola | 7-6,2-6,7-5 |
| Challenger Las Vegas | 2021/10/27 20:00 | Thai-Son Kwiatkowski v Ernesto Escobedo | 5-7,2-6 |
| Challenger Las Vegas | 2021/10/25 20:55 | Jason Jung v Thai-Son Kwiatkowski | 5-7,2-6 |
| ATP Indian Wells | 2021/10/06 22:00 | Botic Van De Zandschulp v Thai-Son Kwiatkowski | 6-4,4-6,6-2 |
| ATP Indian Wells | 2021/10/06 00:40 | Thai-Son Kwiatkowski v Ernests Gulbis | 6-4,6-2 |