Head to Head
| UK Tennis Series | 2020/08/13 13:00 | Billy Harris v Mark Whitehouse | 6-1,3-6,8-10 |
| UK Tennis Series | 2020/08/01 11:30 | Billy Harris v Mark Whitehouse | 6-7,7-6,10-6 |
| UK Tennis Series | 2020/07/24 11:30 | Mark Whitehouse v Billy Harris | 6-3,7-5 |
| UK Tennis Series | 2020/07/12 09:00 | Billy Harris v Mark Whitehouse | 5-7,4-6 |
Home History
| UK Pro League | 2021/03/03 15:30 | Mark Whitehouse v Andrew Watson | 7-6,6-2 |
| UK Pro League | 2021/03/02 10:00 | Mark Whitehouse v George Houghton | 6-7,4-6 |
| UK Pro League | 2021/03/01 15:30 | Mark Whitehouse v Daniel Cox | 3-6,6-4,4-10 |
| ITF M25 Naples | 2021/02/24 18:25 | Mark Whitehouse v Christian Harrison | 4-6,4-6 |
| ITF M25 Naples | 2021/02/23 17:15 | Wilson Leite v Mark Whitehouse | 3-6,6-3,5-10 |
| ITF M25 Naples | 2021/02/22 16:00 | Reese Stalder v Mark Whitehouse | 4-6,2-6 |
| ITF M25 Naples | 2021/02/15 16:00 | Michael Zhu v Mark Whitehouse | 6-0,6-2 |
| ITF M15 Parnu | 2020/11/05 09:30 | Patrik Niklas-Salminen v Mark Whitehouse | 6-4,6-4 |
Away History
| 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 |
| ITF M15 Antalya | 2021/01/28 08:00 | Geni Inoue v Billy Harris | 2-6,4-6 |
| ITF M15 Antalya | 2021/01/21 12:10 | Rudolf Molleker v Billy Harris | 6-3,6-4 |
| ITF M15 Antalya | 2021/01/20 14:10 | Billy Harris v Alex Rybakov | 6-4,6-4 |
| ITF M15 Antalya | 2021/01/19 06:30 | Vladislav Ivanov v Billy Harris | 5-7,4-6 |