| Challenger Puerto Vallarta | 03/05 18:20 | 14 | Esteban Estrada v Nick Chappell | 0-6,0-6 | |
| ATP Acapulco | 03/01 00:00 | 25 | [85] Nuno Borges v Nick Chappell [432] | 6-3,7-6 | |
| ATP Acapulco | 02/27 01:25 | 19 | [453] Nick Chappell v Rubin Statham [492] | 6-4,6-0 | |
| ATP Acapulco | 02/26 03:40 | 14 | [125] Steve Johnson v Nick Chappell [453] | 6-4,1-6,2-6 | |
| Challenger Monterrey | 02/24 02:50 | 26 | [89] Denis Kudla v Nick Chappell [453] | 6-3,6-4 | |
| Challenger Monterrey | 02/21 23:20 | 25 | Nick Chappell v Jesse Flores | 6-3,6-2 | |
| Challenger Monterrey | 02/20 19:30 | 19 | Nick Chappell v Maxime Mora | 6-4,6-3 | |
| Challenger Monterrey | 02/19 21:00 | 14 | Nick Chappell v Cesar Ramirez | 7-6,6-2 | |
| ATP Dallas | 02/05 23:10 | 14 | [191] Brandon Holt v Nick Chappell [448] | 6-3,6-2 | |
| Challenger Cleveland | 01/30 23:35 | 25 | [448] Nick Chappell v Mitchell Krueger [229] | 3-6,6-7 | |
| ITF M15 Edmond | 01/25 19:05 | 25 | Aidan Kim v Nick Chappell | 7-6,6-7,7-5 | |
| ITF M15 Ithaca | 01/20 17:00 | 27 | Mac Kiger v Nick Chappell | 2-6,6-3,6-4 | |
| ITF M15 Ithaca | 01/19 16:00 | 26 | Lucas Renard v Nick Chappell | 6-2,6-7,3-6 | |
| ITF M15 Ithaca | 01/18 16:00 | 25 | Aman Sharma v Nick Chappell | 1-6,2-6 | |
| Challenger Champaign | 11/16 01:15 | 25 | [283] Lucas Gerch v Nick Chappell [439] | 6-3,6-4 | |
| Challenger Calgary | 11/07 22:55 | 25 | [435] Nick Chappell v Dominik Koepfer [259] | 2-6,6-7 | |
| Challenger Charlottesville | 10/30 19:35 | 14 | Nick Chappell v Murphy Cassone | 5-7,3-6 | |
| Challenger Las Vegas | 10/23 16:30 | 14 | Nick Chappell v Simon Carr | 2-6,5-7 | |
| Challenger Tiburon | 10/05 18:00 | 26 | [416] Nick Chappell v Mitchell Krueger [208] | 3-6,7-6,5-7 | |
| Challenger Tiburon | 10/04 17:00 | 25 | [416] Nick Chappell v Nicolas Mejia [287] | 7-6,3-6,6-1 | |
| Challenger Tiburon | 10/03 17:00 | 19 | [416] Nick Chappell v Alfredo Perez [464] | 6-3,7-5 | |
| Challenger Tiburon | 10/02 20:20 | 14 | Nick Chappell v Colin Markes | 6-1,6-3 | |
| ATP Tokyo | 10/01 04:40 | 14 | Nick Chappell v Aziz Dougaz | Cancelled | |
| Challenger Charleston | 09/25 14:00 | 14 | Nick Chappell v Patrick Kypson | 6-4,2-6,0-6 | |
| Challenger Columbus | 09/23 17:40 | 27 | [451] Nick Chappell v Emilio Gomez [114] | 3-6,1-6 | |
| Challenger Columbus | 09/22 15:00 | 26 | [188] Enzo Couacaud v Nick Chappell [451] | 4-6,7-6,4-6 | |
| Challenger Columbus | 09/20 16:10 | 25 | [451] Nick Chappell v Alexis Galarneau [244] | 1-6,6-1,6-3 | |
| Challenger Cary | 09/16 22:05 | 27 | [479] Nick Chappell v Jordan Thompson [102] | 3-6,1-6 | |
| Challenger Cary | 09/16 01:45 | 26 | Ryan Harrison v Nick Chappell | 4-6,6-4,2-6 | |
| Challenger Cary | 09/13 18:00 | 25 | Nick Chappell v Daniil Glinka | 6-2,7-6 |
Nick Chappell (born September 19, 1992) is a Canadian-born American tennis player.
Chappell has a career high ATP singles ranking of 329 achieved on November 8, 2021. He also has a career high ATP doubles ranking of 416 achieved on June 27, 2016.
Chappell made his ATP main draw debut at the 2022 Los Cabos Open after qualifying for the main draw in singles, defeating Maxime Janvier and Aziz Dougaz to qualify.
He also qualified for the 2023 Mexican Open defeating second qualifying seed Steve Johnson and New Zealander Rubin Statham.