[141] Ramkumar Ramanathan 4-6,6-3,6-2 Chien-Hsun Lo [411] 2019-04-11 06:30
Stadium: Centre Court Round: 26 Ground: Hardcourt indoor
Home History
| Challenger Taipei | 2019/04/10 03:40 | Ramkumar Ramanathan v Maverick Banes | 6-3,6-2 |
| ATP Miami | 2019/03/18 14:00 | Ramkumar Ramanathan v Lorenzo Sonego | 4-6,1-6 |
| Challenger Phoenix | 2019/03/11 18:50 | Ramkumar Ramanathan v Pedja Krstin | 2-6,4-6 |
| ATP Indian Wells | 2019/03/06 02:30 | Ramkumar Ramanathan v Filip Krajinovic | 4-6,0-6 |
| ATP Dubai | 2019/02/25 16:55 | Roberto Bautista-Agut v Ramkumar Ramanathan | 6-4,6-3 |
| ATP Delray Beach | 2019/02/16 16:00 | Marcelo Arevalo v Ramkumar Ramanathan | 6-2,3-6,7-6 |
| ATP New York | 2019/02/12 17:50 | Ramkumar Ramanathan v Jason Jung | 3-6,6-3,1-6 |
| ATP New York | 2019/02/11 18:00 | Ramkumar Ramanathan v Tim Smyczek | 6-3,3-6,7-5 |
Away History
| Challenger Taipei | 2019/04/08 09:40 | Collin Altamirano v Chien Hsun Lo | 5-7,7-5,3-6 |
| ITF M15 Sharm El Sheikh | 2019/03/19 08:00 | Chien Hsun Lo v Riccardo Maiga | 6-7,6-3,6-7 |
| ITF M15 Sharm El Sheikh | 2019/03/13 13:05 | Adrian Bodmer v Chien Hsun Lo | 6-7,7-5,7-5 |
| ITF M15 Sharm El Sheikh | 2019/03/07 10:20 | Adam Moundir v Chien Hsun Lo | 6-4,6-2 |
| ITF M25 Aktobe | 2019/02/19 11:05 | Chien Hsun Lo v Sagadat Ayap | 6-1,3-6,4-6 |
| ITF M25 Aktobe | 2019/02/13 07:10 | Chien Hsun Lo v Mikhail Elgin | 2-6,2-6 |
| Challenger Canberra | 2019/01/06 03:25 | Chien Hsun Lo v Marc-Andrea Huesler | 5-7,2-6 |
| ITF M25 Hong Kong | 2019/01/02 06:35 | Chien Hsun Lo v Alen Avidzba | 0-6,4-6 |