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