Stadium: Court 1N Round: 26 Ground: Hardcourt outdoor
| ITF M15 Champaign | 2021/09/15 19:40 | Ryan Shane v Nathan Ponwith | 5-7,2-6 |
| ITF M25 Decatur | 2021/08/04 18:45 | Yunseong Chung v Nathan Ponwith | 6-2,6-1 |
| ITF M25 Decatur | 2021/08/03 16:20 | Alexander Petrov v Nathan Ponwith | 2-6,4-6 |
| ITF M25 Decatur | 2021/08/02 15:00 | Toby D. Boyer v Nathan Ponwith | 1-6,3-6 |
| ITF M25 Champaign | 2021/07/28 21:45 | Naoki Nakagawa v Nathan Ponwith | 4-6,7-5,6-2 |
| ITF M25 Champaign | 2021/07/27 17:05 | Nathan Ponwith v Jibril Nettles | 7-5,6-2 |
| ITF M25 Champaign | 2021/07/26 15:00 | Nathan Ponwith v Ozan Baris | 7-6,6-2 |
| ITF M15 Edwardsville | 2021/07/21 21:50 | William Griffith v Nathan Ponwith | 7-5,6-4 |
| ITF M25 Champaign | 2021/09/14 17:00 | Blaise Bicknell v Johannus Monday | 6-3,6-4 |
| ITF M15 Edwardsville | 2021/07/22 14:25 | Bruno Kuzuhara v Blaise Bicknell | 7-6,6-7,1-6 |
| ITF M15 Edwardsville | 2021/07/21 16:00 | Blaise Bicknell v Tristan Schoolkate | 2-6,6-3,7-6 |
| ITF M15 Edwardsville | 2021/07/19 14:00 | Blaise Bicknell v Micah Braswell | 7-6,2-6,10-6 |
| Davis Cup | 2021/07/03 15:40 | Justin Roberts v Blaise Bicknell | 6-2,3-6,4-6 |
| Davis Cup | 2021/07/02 15:20 | Blaise Bicknell v Quinton Vega | 6-4,6-1 |
| Davis Cup | 2021/07/01 15:35 | Blaise Bicknell v Jose Gilbert Gomez | 6-3,6-4 |
| Davis Cup | 2021/06/30 15:30 | Blaise Bicknell v Tomas Del Olmo | 6-2,6-3 |