Stadium: Court 5 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Guam | 2019/06/05 02:40 | Ko Suzuki v Joseph W. Van Meter | 6-2,6-4 |
| ITF M15 - Karuizawa | 2019/06/02 02:00 | Ko Suzuki v Yuki Mochizuki | 4-6,6-4,2-6 |
| ITF M15 - Karuizawa | 2019/06/01 02:00 | Ko Suzuki v Soichiro Moritani | 6-4,6-2 |
| ITF M15 - Karuizawa | 2019/05/31 01:00 | Ko Suzuki v Goran Markovic | 6-1,6-4 |
| ITF M15 - Karuizawa | 2019/05/30 06:00 | Jordi Samper-Montana v Ko Suzuki | 4-6,6-0,6-7 |
| ITF M15 - Karuizawa | 2019/05/28 05:35 | Yuta Kikuchi v Ko Suzuki | 2-6,6-3,4-6 |
| ITF Japan F7 Qual | 2018/06/03 03:10 | Tomohiro Masabayashi v Ko Suzuki | 5-7,7-6,6-4 |
| ITF Japan F7 Qual | 2018/06/02 03:00 | Ko Suzuki v Yuki Matsuo | 5-7,6-0,6-4 |
| ITF M15 Guam | 2019/06/04 01:10 | Harry Thursfield v Karunuday Singh | 1-6,2-6 |
| ITF M25 - Nonthaburi | 2019/05/29 05:25 | Karunuday Singh v Yu Hsiou Hsu | 2-6,4-6 |
| ITF M25 - Luan | 2019/05/16 05:40 | Xin Gao v Karunuday Singh | 6-3,6-3 |
| ITF M25 - Luan | 2019/05/15 03:25 | Shi Hong Zeng v Karunuday Singh | 3-6,3-6 |
| ITF M25 Wuhan | 2019/05/07 02:00 | Karunuday Singh v Chukang Wang | 6-7,3-6 |
| ITF M25 Wuhan | 2019/05/06 07:05 | Karunuday Singh v Natthasith Kunsuwan | 6-4,6-2 |
| ITF M15 Wuhan | 2019/05/01 06:00 | Karunuday Singh v Sho Shimabukuro | 3-6,3-6 |
| ITF M15 Mornington | 2019/03/27 00:35 | Jacob Grills v Karunuday Singh | 6-3,7-5 |