| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2019 | 9/16 | 8/11 | 1/4 | 0/1 | 0/0 | 0/0 | 0/0 |
| 2018 | 14/7 | 9/5 | 5/2 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2017 | 1/1 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2015 | 2/1 | 0/0 | 2/1 | 0/0 | 0/0 | 0/0 | 0/0 |
| TOTAL | 26/25 | 18/17 | 8/7 | 0/1 | 0/0 | 0/0 | 0/0 |
| perc. % | 50.98 % | 51.43 % | 53.33 % | 0 % | 0 % | 0 % | 0 % |
Grey Hamilton / scheduled / last
| no matches found |
Grey Hamilton form / year 2019 / surface: Hard
Grey Hamilton / year 2019 / surface: Hard
| 13.10.19 | q 1 | Noah Berry | Grey Hamilton | 7-5, 1-6, 10-8 |  | match details |  M25 Waco | Hard |
| 30.09.19 | q 2 | Mate Zsiga | Grey Hamilton | 6-4, 7-5 | | match details | M25 Norman | Hard |
| 29.09.19 | q 1 | Grey Hamilton | Percy Young | 6-0, 6-0 |  | match details | ||
| 19.09.19 | 2nd round | Carl Soderlund | Grey Hamilton | 6-1, 6-0 | | match details | M15 Fayetteville | Hard |
| 17.09.19 | 1st round | Grey Hamilton | Matej Vocel | 6-3, 6-4 | | match details | ||
| 10.09.19 | 1st round | Andrew Watson | Grey Hamilton | 6-1, 6-1 | | match details | M15 Champaign | Hard |
| 30.07.19 | 1st round | Axel Geller | Grey Hamilton | 6-2, 6-0 | | match details | M25 Decatur | Hard |
| 02.07.19 | 1st round | Ben Jones | Grey Hamilton | 4-6, 6-4, 7-65 | | match details |  M15 Cancun | Hard |
| 25.06.19 | 1st round | Axel Geller | Grey Hamilton | 6-0, 6-3 | | match details | M15 Cancun | Hard |
| 18.06.19 | 1st round | Evan Zhu | Grey Hamilton | 2-6, 6-3, 6-2 | | match details | M25 Tulsa | Hard |
| 11.06.19 | 1st round | Alexander Lebedev | Grey Hamilton | 6-4, 6-4 | | match details | M25 Wichita | Hard |
| 17.03.19 | fin | Antoine Bellier | Grey Hamilton | 6-3, 6-3 | | match details | M15 Arcadia | Hard |
| 16.03.19 | 1/2 | Grey Hamilton | Alan Kohen | 6-3, 7-5 | | match details | ||
| 15.03.19 | 1/4 | Grey Hamilton | Gonzalo Lama | 1-6, 7-5, 6-2 | | match details | ||
| 14.03.19 | 2nd round | Grey Hamilton | Christian Langmo | 6-4, 6-0 | | match details | ||
| 13.03.19 | 1st round | Grey Hamilton | Michail Pervolarakis | 3-6, 6-4, 6-4 | | match details | ||
| 12.03.19 | qual. | Grey Hamilton | Gergely Madarasz | 7-5, 6-1 | | match details | ||
| 11.03.19 | q 1 | Grey Hamilton | Pierce Brazil Rollins | 6-3, 6-3 | | match details | ||
| 05.02.19 | q 1 | George Goldhoff | Grey Hamilton | 7-5, 6-3 | | match details | M15 Claremont | Hard |