Stadium: Center Round: 1
| ITF M15 Claremont | 2019/02/05 20:30 | Nick Chappell v William Griffith | 7-6,7-5 |
| US Pro Tennis Series West Coast | 2020/06/17 16:00 | Gage Brymer v William Griffith | 6-3,6-0 |
| US Pro Tennis Series West Coast | 2020/06/16 17:10 | Alexander Sarkissian v William Griffith | 6-3,7-6 |
| US Pro Tennis Series West Coast | 2020/06/12 16:00 | Collin Altamirano v William Griffith | 6-4,2-6,5-10 |
| US Pro Tennis Series West Coast | 2020/06/11 20:20 | Joshua Ortlip v William Griffith | 2-6,5-7 |
| US Pro Tennis Series West Coast | 2020/06/10 20:35 | Christian Langmo v William Griffith | 7-6,1-6,4-10 |
| ITF M15 Heraklion | 2020/03/04 11:05 | Lucas Catarina v William Griffith | 6-2,6-0 |
| ITF M15 Heraklion | 2020/03/03 08:30 | William Griffith v Matt Kuhar | 6-1,6-0 |
| ITF M15 Heraklion | 2020/02/20 14:30 | Antonio Cayetano March v William Griffith | 6-4,1-6,6-2 |
| US Pro Tennis Series West Coast | 2020/06/17 20:25 | Joshua Ortlip v Nick Chappell | 6-3,6-3 |
| US Pro Tennis Series West Coast | 2020/06/16 21:50 | Brayden Schnur v Nick Chappell | 4-6,6-4,10-4 |
| US Pro Tennis Series West Coast | 2020/06/15 18:15 | Alec Adamson v Nick Chappell | 2-6,6-7 |
| US Pro Tennis Series West Coast | 2020/06/14 16:00 | Gage Brymer v Nick Chappell | 7-5,6-3 |
| US Pro Tennis Series West Coast | 2020/06/13 18:40 | Brandon Holt v Nick Chappell | 3-6,6-3,10-4 |
| US Pro Tennis Series West Coast | 2020/06/09 16:00 | Martin Redlicki v Nick Chappell | 3-6,6-7 |
| US Pro Tennis Series West Coast | 2020/06/08 19:30 | Nick Chappell v Alec Adamson | 6-2,6-3 |
| US Pro Tennis Series West Coast | 2020/06/07 16:00 | Collin Altamirano v Nick Chappell | 6-3,6-0 |