Stadium: Court E Round: 25 Ground: Hardcourt outdoor
| ITF M15 Claremont | 2019/02/07 18:00 | Jenson Brooksby v Jumpei Yamasaki | 6-2,6-1 |
| ITF M15 Claremont | 2019/02/06 18:00 | Dusty H. Boyer v Jumpei Yamasaki | 6-4,3-6,6-7 |
| ITF M25 Weston | 2019/01/29 18:20 | Jumpei Yamasaki v Patrick Kypson | 2-6,3-6 |
| ITF M25 Palm Coast | 2019/01/23 18:05 | Matic Spec v Jumpei Yamasaki | 6-3,7-6 |
| ITF M25 Hong Kong | 2019/01/04 04:20 | Jumpei Yamasaki v Evan Furness | 0-6,4-6 |
| ITF M25 Hong Kong | 2019/01/03 10:10 | Jumpei Yamasaki v Alen Avidzba | 7-5,7-6 |
| ITF M25 Hong Kong | 2019/01/02 08:05 | Zsombor Piros v Jumpei Yamasaki | 6-7,5-7 |
| ITF M25 Hong Kong | 2019/01/01 02:00 | Jumpei Yamasaki v Runhao Hua | 6-2,6-0 |
| Challenger Yokohama | 2019/02/25 04:10 | Blake Ellis v Daniel Nguyen | 6-3,5-7,5-7 |
| Challenger Chennai | 2019/02/06 06:30 | Gastao Elias v Blake Ellis | 6-2,7-6 |
| Challenger Chennai | 2019/02/04 05:40 | Blake Ellis v Siddharth Vishwakarma | 6-2,6-2 |
| Challenger Launceston | 2019/01/28 23:00 | Lloyd Harris v Blake Ellis | 6-2,6-3 |
| Challenger Launceston | 2019/01/27 23:00 | Blake Ellis v Christopher O'Connell | 7-6,6-4 |
| Australian Open | 2019/01/08 01:20 | Dominik Koepfer v Blake Ellis | 3-6,6-0,6-3 |
| ATP Brisbane | 2018/12/29 05:05 | Blake Ellis v Ugo Humbert | 4-6,3-6 |
| Australian Open WC | 2018/12/10 01:50 | Blake Ellis v James Duckworth | 7-5,4-6,5-7,2-6 |