Head to Head
| LTA British Tour | 2020/10/03 13:30 | Julian Cash v Billy Harris | 6-7,3-6 |
| UK Tennis Series | 2020/08/16 07:00 | Julian Cash v Billy Harris | 3-6,6-3,10-4 |
| UK Tennis Series | 2020/07/31 14:30 | Billy Harris v Julian Cash | 7-5,6-2 |
| UK Tennis Series | 2020/07/23 09:00 | Billy Harris v Julian Cash | 7-6,6-2 |
Home History
| UK Pro League | 2021/03/07 17:00 | Joshua Paris v Billy Harris | 6-3,6-4 |
| UK Pro League | 2021/03/06 17:00 | Anton Matusevich v Billy Harris | 6-4,3-6,4-10 |
| UK Pro League | 2021/03/05 14:00 | Billy Harris v Andrew Watson | 6-2,6-1 |
| UK Pro League | 2021/03/04 11:15 | Mark Whitehouse v Billy Harris | 3-6,6-3,5-10 |
| UK Pro League | 2021/03/03 17:00 | Billy Harris v George Houghton | 6-3,6-2 |
| UK Pro League | 2021/03/02 11:15 | Billy Harris v Daniel Cox | 1-6,4-6 |
| UK Pro League | 2021/03/01 17:00 | Billy Harris v Sean Hodkin | 6-4,6-2 |
| ITF M15 Antalya | 2021/01/29 07:00 | Maxime Mora v Billy Harris | 6-1,6-2 |
Away History
| UTR Pro Tennis Series Cancun | 2020/11/21 19:00 | Julian Cash v Juan A H Serrano | 4-6,3-6 |
| UTR Pro Tennis Series Cancun | 2020/11/19 17:00 | Julian Cash v Ivar Jose Aramburu Contreras | 6-4,6-3 |
| UTR Pro Tennis Series Cancun | 2020/11/18 14:00 | Julian Cash v Alan F R Fierros | 7-6,6-2 |
| UTR Pro Tennis Series Cancun | 2020/11/16 15:30 | Julian Cash v Emilio Vila | 6-3,3-6,5-3 |
| LTA British Tour | 2020/10/11 10:15 | Anton Matusevich v Julian Cash | 5-7,6-1,10-6 |
| LTA British Tour | 2020/10/10 13:00 | Julian Cash v Michael Shaw | 6-2,6-3 |
| LTA British Tour | 2020/10/10 10:15 | Sean Hodkin v Julian Cash | 5-7,4-6 |
| LTA British Tour | 2020/10/09 15:20 | George Houghton v Julian Cash | 0-6,7-6,6-10 |