Stadium: Court 5 Round: 25 Ground: Hardcourt indoor
| Waco, Singles M-ITF-USA-41A | 2019/10/13 15:00 | Berry, Noah v Hamilton, Grey | 7-5,1-6,10-8 |
| ITF M25 Norman | 2019/09/30 15:00 | Zsiga, Mate v Hamilton, Grey | 6-4,7-5 |
| ITF M15 Fayetteville | 2019/09/19 15:25 | Soderlund, Carl v Hamilton, Grey | 6-1,6-0 |
| ITF M15 Fayetteville | 2019/09/17 20:25 | Hamilton, Grey v Matej Vocel | 6-3,6-4 |
| ITF M15 Champaign | 2019/09/10 18:00 | Hamilton, Grey v Watson, Andrew | 1-6,1-6 |
| ITF M25 Decatur | 2019/07/30 17:30 | Hamilton, Grey v Geller, Axel | 2-6,0-6 |
| ITF M15 Cancun | 2019/07/02 13:30 | Ben Jones v Hamilton, Grey | 4-6,6-4,7-6 |
| ITF M15 Cancun | 2019/06/25 13:30 | Hamilton, Grey v Geller, Axel | 0-6,3-6 |
| Challenger Champaign | 2019/11/12 23:55 | Lucas Gerch v Emilio Gomez | 4-6,7-6,2-6 |
| Challenger Champaign | 2019/11/11 19:55 | Lucas Gerch v Gijs Brouwer | 7-6,6-2 |
| ITF M25 Malibu | 2019/11/07 17:20 | Sarkissian, Alexander v Lucas Gerch | 6-4,7-6 |
| ITF M25 Malibu | 2019/11/06 19:35 | Gabriel Diallo v Lucas Gerch | 6-4,6-7,6-7 |
| Playford City II, Australie | 2019/10/29 01:55 | Luke Saville v Lucas Gerch | 7-6,6-3 |
| Challenger Traralgon | 2019/10/23 00:25 | Harris, Andrew v Lucas Gerch | 6-2,6-3 |
| Challenger Fairfield | 2019/10/07 18:30 | Quiroz, Roberto v Lucas Gerch | 6-3,6-3 |
| ITF M25 Norman | 2019/10/03 15:00 | Lucas Gerch v Evan Zhu | 5-7,6-4,3-6 |