Risultati
| Challenger Shenzhen | 04/24 02:00 | 25 | [168] Yasutaka Uchiyama v Tristan Schoolkate [241] | Retired | |
| Challenger Gwangju | 04/16 04:40 | 25 | Lloyd Harris v Yasutaka Uchiyama | CANC | |
| Challenger Busan | 04/14 03:15 | 29 | Yasutaka Uchiyama v Seongchan Hong | 7-6,6-3 | |
| Challenger Busan | 04/13 03:30 | 28 | [107] James Duckworth v Yasutaka Uchiyama [241] | 3-6,6-4,6-7 | |
| Challenger Busan | 04/12 02:00 | 27 | [241] Yasutaka Uchiyama v Paul Jubb [424] | 4-6,7-5,6-3 | |
| Challenger Busan | 04/11 03:45 | 26 | [241] Yasutaka Uchiyama v Dane Sweeny [225] | 6-2,4-6,6-1 | |
| Challenger Busan | 04/09 01:00 | 25 | [173] Sho Shimabukuro v Yasutaka Uchiyama [241] | 3-6,0-6 | |
| Challenger Amburgo | 03/13 15:35 | 26 | [245] Yasutaka Uchiyama v Henri Squire [271] | 4-6,2-6 | |
| Challenger Amburgo | 03/11 14:30 | 25 | [172] Jan Choinski v Yasutaka Uchiyama [245] | 4-6,6-7 | |
| Challenger Lugano | 03/04 10:10 | 19 | [248] Yasutaka Uchiyama v Arthur Gea [449] | 3-6,3-6 | |
| Challenger Lugano | 03/03 13:10 | 14 | [248] Yasutaka Uchiyama v Jakub Paul [254] | 6-4,6-3 | |
| Challenger Burnie | 02/10 02:35 | 28 | [224] Dane Sweeny v Yasutaka Uchiyama [249] | Retired |
Wikipedia - Yasutaka Uchiyama
Yasutaka Uchiyama (Sapporo, 5 agosto 1994) è un tennista giapponese.