Head to Head
| ITF Spain F2 | 2017/01/25 08:30 | Billy Harris v Toby Martin | 4-6,6-3,18-16 |
| ITF Cyprus F1 | 2016/11/15 08:00 | Toby Martin v Billy Harris | 6-3,5-7,7-6 |
Home History
| UK Tennis Series | 2020/07/09 11:30 | Luke Johnson v Billy Harris | 6-4,6-7,10-4 |
| UK Tennis Series | 2020/07/08 14:15 | Billy Harris v Marcus Willis | 6-1,7-6 |
| UK Tennis Series | 2020/07/07 09:00 | Lloyd Glasspool v Billy Harris | 1-6,5-7 |
| UK Tennis Series | 2020/07/06 13:30 | Tom Hands v Billy Harris | 6-7,7-6,0-1 |
| LTA British Tour | 2020/07/04 13:00 | Billy Harris v Alastair Gray | 1-6,2-6 |
| LTA British Tour | 2020/07/04 09:00 | Lloyd Glasspool v Billy Harris | 4-6,3-6 |
| LTA British Tour | 2020/07/03 13:05 | Billy Harris v Sean Hodkin | 6-0,6-4 |
| ITF M15 Loule | 2020/03/12 11:00 | Billy Harris v Nicolo Turchetti | 6-3,6-3 |
Away History
| UK Tennis Series | 2020/07/09 10:15 | Tom Hands v Toby Martin | 7-5,6-2 |
| UK Tennis Series | 2020/07/08 15:30 | Luke Johnson v Toby Martin | 6-2,6-4 |
| UK Tennis Series | 2020/07/07 11:30 | Toby Martin v Marcus Willis | 3-6,3-6 |
| UK Tennis Series | 2020/07/06 15:00 | Lloyd Glasspool v Toby Martin | 6-3,6-3 |
| LTA British Tour | 2020/07/03 14:25 | Toby Martin v Arthur Fery | 0-6,3-6 |
| ITF - M15 Doha | 2019/12/18 13:55 | Aleksandre Bakshi v Toby Martin | 7-6,6-3 |
| ITF - M15 Doha | 2019/12/13 14:15 | Zizou Bergs v Toby Martin | 6-2,6-2 |
| ITF - M15 Doha | 2019/12/12 14:00 | Toby Martin v Adam Moundir | 7-6,5-7,6-4 |