Stadium: Court 1 Round: 25 Ground: Hardcourt indoor
| ITF M25 Calabasas | 2019/03/19 18:55 | Jonathan Gray v William Griffith | 6-2,7-6 |
| ITF M25 Calabasas | 2019/03/18 17:00 | Michael Shabaz v William Griffith | 7-6,4-6,3-10 |
| ITF M25 Bakersfield | 2019/03/11 17:00 | William Griffith v David Fox | 3-6,6-3,8-10 |
| ITF M15 Tucson | 2019/02/12 19:00 | William Griffith v Liam Draxl | 3-6,2-6 |
| ITF M15 Claremont | 2019/02/05 20:30 | Nick Chappell v William Griffith | 7-6,7-5 |
| Challenger Fairfield | 2018/10/06 19:25 | Jan Choinski v William Griffith | 6-4,7-6 |
| ITF Canada F6 | 2018/09/04 15:40 | Alejandro Gomez v William Griffith | 6-2,6-2 |
| Challenger Aptos | 2018/08/04 20:55 | Alexander Ward v William Griffith | 7-6,7-6 |
| ITF M25 Kazan | 2019/03/15 07:00 | Savriyan Danilov v Julian Lenz | 6-1,6-2 |
| ITF M25 Kazan | 2019/03/13 10:45 | Alexandar Lazarov v Julian Lenz | 1-6,1-6 |
| ITF M25 Trento | 2019/03/02 13:00 | Julian Lenz v Jeremy Jahn | 6-7,3-6 |
| ITF M25 Trento | 2019/03/01 12:30 | Jelle Sels v Julian Lenz | 6-7,1-6 |
| ITF M25 Trento | 2019/02/28 10:00 | Yannick Mertens v Julian Lenz | 3-6,4-6 |
| ITF M25 Trento | 2019/02/26 11:40 | Lorenzo Musetti v Julian Lenz | 3-6,7-6,3-6 |
| ITF M25 Glasgow | 2019/02/19 10:00 | Julian Lenz v Gijs Brouwer | 2-6,2-6 |
| ITF M25 Oberentfelden | 2019/02/09 12:30 | Evan Furness v Julian Lenz | 6-2,6-3 |