Face à face
| UK Pro League | 2021/04/09 09:00 | Billy Harris v Cash, Julian | 3-6,5-7 |
| UK Pro League | 2021/03/15 15:30 | Billy Harris v Cash, Julian | 7-6,7-6 |
| LTA British Tour | 2020/10/03 13:30 | Cash, Julian v Billy Harris | 6-7,3-6 |
| UK Tennis Series | 2020/08/16 07:00 | Cash, Julian v Billy Harris | 3-6,6-3,10-4 |
| UK Tennis Series | 2020/07/31 14:30 | Billy Harris v Cash, Julian | 7-5,6-2 |
| UK Tennis Series | 2020/07/23 09:00 | Billy Harris v Cash, Julian | 7-6,6-2 |
Home History
| UK Pro League | 2021/08/26 10:15 | Sean Hodkin v Cash, Julian | 3-6,6-7 |
| UK Pro League | 2021/08/24 13:00 | Cash, Julian v Ewan Moore | 7-6,7-6 |
| UK Pro League | 2021/08/23 13:00 | Cash, Julian v Patten, Henry | 7-6,2-6,6-10 |
| ITF M15 Bratislava | 2021/08/17 08:00 | Cash, Julian v Eero Vasa | 4-6,3-6 |
| ITF M15 Bratislava | 2021/08/16 08:00 | Cash, Julian v Polakovic, Samo | 6-1,6-4 |
| ITF M15 Telavi | 2021/08/05 06:30 | Cash, Julian v Oleg Prihodko | 1-6,5-7 |
| ITF M15 Telavi | 2021/08/04 08:50 | Cash, Julian v Saba Purtseladze | 6-1,7-5 |
| ITF M15 Telavi | 2021/08/03 09:55 | Aliaksandr Liaonenka v Cash, Julian | 6-7,6-7 |
Away History
| UK Pro League | 2021/08/26 10:15 | Pinnington Jones, Jack v Billy Harris | 1-6,4-6 |
| UK Pro League | 2021/08/24 10:00 | Billy Harris v Jack Gibbens | 6-2,6-2 |
| UK Pro League | 2021/08/23 10:00 | Billy Harris v Paris, Joshua | 6-7,1-6 |
| ITF M15 Xativa | 2021/08/04 16:30 | Billy Harris v Carlos Lopez Montagud | 6-3,4-6,6-7 |
| UTR Pro Tennis Series Mulheim | 2021/07/31 10:00 | Billy Harris v Dhoe, Benjamin | 4-6,2-6 |
| UTR Pro Tennis Series Mulheim | 2021/07/30 12:32 | Billy Harris v Vilardo, Francesco | 6-3,6-4 |
| UTR Pro Tennis Series Mulheim | 2021/07/29 07:00 | Billy Harris v Sandkaulen, Tim | 6-7,3-6 |
| UTR Pro Tennis Series Mulheim | 2021/07/28 12:00 | Billy Harris v Matthew Thomson | 6-2,3-6,5-1 |