Stadium: HEB01 Round: 44 Ground: Hardcourt outdoor
| Houston, Singles Qualifying M-ITF-USA-28A | 2019/09/15 14:00 | Kyle Overmyer v Irizarry, Eduardo Neftali | 3-6,3-6 |
| ITF M15 Norman | 2019/07/08 14:00 | Andrew Fenty v Allen, Leighton | 7-6,6-2 |
| ITF M15 Pittsburgh | 2019/07/03 21:30 | Phillips, Luke v Allen, Leighton | 7-5,6-3 |
| ITF M15 Pittsburgh | 2019/07/02 14:00 | Hale, Darryl v Allen, Leighton | 4-6,3-6 |
| ITF M15 Pittsburgh | 2019/07/01 14:00 | Allen, Leighton v Giddens, Maxwell | 6-4,0-6,10-8 |
| Tulsa, Singles Main, M-ITF-USA-16A | 2019/06/17 15:00 | George Goldhoff v Allen, Leighton | 6-2,6-2 |
| ITF - M25 Wichita | 2019/06/10 15:00 | AL Allaf, Kareem v Allen, Leighton | 6-1,6-1 |
| ITF - M25 Pensacola | 2019/05/06 14:00 | Adrian Andreev v Allen, Leighton | 6-4,6-0 |
| ITF USA F28B | 2018/10/21 15:00 | Allen, Leighton v Alastair Gray | 3-6,6-7 |