Stadium: Court 10 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Champaign | 2019/06/05 17:00 | Gamble, Luke Jacob v Strong Kirchheimer | 3-6,3-6 |
| ITF - M15 Kalmar | 2019/05/13 09:40 | Gamble, Luke Jacob v Svensson, Daniel | 6-7,0-6 |
| Karlskrona, Singles Qualifying M-ITF-SWE-01A | 2019/05/08 11:55 | Hansson, Gustav v Gamble, Luke Jacob | 6-3,6-2 |
| Karlskrona, Singles Qualifying M-ITF-SWE-01A | 2019/05/07 08:15 | Gamble, Luke Jacob v Nokic, Almir | 6-7,6-3,10-7 |
| Karlskrona, Singles Qualifying M-ITF-SWE-01A | 2019/05/06 08:15 | Gamble, Luke Jacob v Birgerson, Simon | 6-2,6-4 |
| Accra, Singles M-ITF-GHA-01A | 2019/05/03 11:35 | Eric Vanshelboim v Gamble, Luke Jacob | 4-6,6-2,6-4 |
| Accra, Singles M-ITF-GHA-01A | 2019/05/01 12:10 | Armaah, Bernard Ashitey v Gamble, Luke Jacob | 3-6,1-6 |
| Abuja, Singles Qualifying M-ITF-NGR-02A | 2019/04/25 09:00 | Niels Lootsma v Gamble, Luke Jacob | 6-4,7-5 |
| ITF M15 Cancun | 2019/09/18 14:00 | Mantilla, Felipe v Findel-Hawkins, Jack | 6-3,4-6,2-6 |
| ITF M15 Cancun | 2019/09/11 14:00 | Mantilla, Felipe v Mendoza, Alejandro | 7-6,6-7,4-6 |
| ITF - M25 Pensacola | 2019/05/10 15:00 | Juan Pablo Varillas v Mantilla, Felipe | 6-4,6-1 |
| ITF - M25 Pensacola | 2019/05/09 16:25 | Mwendwa Mbithi v Mantilla, Felipe | 5-7,3-6 |
| ITF - M25 Pensacola | 2019/05/08 19:10 | Adrian Andreev v Mantilla, Felipe | 4-6,2-6 |
| Puerto Vallarta, Mexico | 2019/04/29 16:00 | Krainik, Pavel v Mantilla, Felipe | 6-3,6-4 |
| Challenger Leon | 2019/04/23 16:00 | Gomez, Lucas v Mantilla, Felipe | 7-6,6-4 |
| Challenger Leon | 2019/04/22 15:00 | Camilo Ugo Carabelli v Mantilla, Felipe | 1-6,6-7 |