Stadium: Court 18 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Norman | 2019/07/13 15:00 | Rapp, Austin v Mark Whitehouse | 4-6,3-6 |
| ITF M25 Harlingen | 2019/09/26 23:30 | Smith, Logan v Rapp, Austin | 6-4,7-6 |
| ITF M25 Harlingen | 2019/09/25 23:00 | Roelofse, Ruan v Rapp, Austin | 6-7,2-6 |
| Houston, Singles Qualifying M-ITF-USA-28A | 2019/09/21 17:30 | Rapp, Austin v Hugo Gaston | 2-6,2-6 |
| Houston, Singles Qualifying M-ITF-USA-28A | 2019/09/21 01:00 | Greif, Lukas v Rapp, Austin | 3-6,3-6 |
| Houston, Singles Qualifying M-ITF-USA-28A | 2019/09/20 00:00 | Farren, Connor v Rapp, Austin | 5-7,6-7 |
| Houston, Singles Qualifying M-ITF-USA-28A | 2019/09/19 01:35 | Rapp, Austin v Nicolas Mejia | 4-6,7-6,6-3 |
| ITF M15 Champaign | 2019/09/12 17:30 | Rapp, Austin v Zachary Svajda | 2-6,2-6 |
| ITF M15 Champaign | 2019/09/11 22:05 | Rapp, Austin v Hills, Langford | 6-3,6-4 |
| ITF M25 Norman | 2019/10/02 15:00 | Mark Whitehouse v Stalder, Reese | 1-6,2-6 |
| ITF M25 Harlingen | 2019/09/25 14:55 | Caruana, Liam v Mark Whitehouse | 6-3,6-7,6-3 |
| Challenger - Glasgow | 2019/09/16 20:00 | Mark Whitehouse v Antoine Escoffier | 5-7,2-6 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/08 09:00 | Jurij Rodionov v Mark Whitehouse | 6-4,6-3 |
| Chiswick, Singles W-ITF-GBR-09A | 2019/08/06 10:45 | Mark Whitehouse v Pauffley, Neil | 6-3,4-6,6-2 |
| ITF M25 Roehampton | 2019/08/01 09:30 | Mark Whitehouse v Jack Draper | 3-6,5-7 |
| ITF M25 Roehampton | 2019/07/31 15:40 | Mark Whitehouse v Anton Matusevich | 7-6,7-6 |
| ITF M25 Roehampton | 2019/07/31 10:00 | Mark Whitehouse v Alexis Gautier | 6-4,6-2 |