Stadium: Court 2 Round: 26 Ground: Hardcourt indoor
| ITF M15 Tallahassee | 2021/10/27 14:00 | 싱클라이어, 콜린 v 샌, 리안 | 6-3,3-6,6-7 |
| ITF M15 Ithaca | 2021/10/06 18:35 | 스미스, 로이 v 샌, 리안 | 5-7,3-6 |
| ITF M15 Lubbock | 2021/09/30 15:00 | 샌, 리안 v 보룸, 찰레스 | 6-7,3-6 |
| ITF M15 Fayetteville | 2021/09/22 21:25 | 화이트하우스, 마르크 v 샌, 리안 | 6-1,6-0 |
| ITF M15 Champaign | 2021/09/15 19:40 | 샌, 리안 v 폰위드, 나단 | 5-7,2-6 |
| ITF M25 Champaign | 2021/07/27 15:00 | 샌, 리안 v 흐르브, 루카스 | 6-3,4-6,4-10 |
| ITF M25 Champaign | 2021/07/26 15:00 | 샌, 리안 v Alexander Petrov | 6-4,6-2 |
| ITF M15 Edwardsville | 2021/07/21 19:20 | 보이엘, 더스티 H v 샌, 리안 | 6-3,6-1 |
| ITF M15 Tallahassee | 2021/10/27 14:20 | Lakoseljac, Christian v 보이엘, 더스티 H | 5-7,7-6,7-6 |
| ITF M15 Tallahassee | 2021/10/26 13:00 | Lakoseljac, Christian v 헤르난데즈, 칼레스 | 7-6,6-3 |
| ITF M15 Tallahassee | 2021/10/25 13:00 | 수니쉬, 드루브 v Lakoseljac, Christian | 6-7,3-6 |
| Vero Beach, Fl, Singles Qualifying M-ITF-USA-17A | 2021/10/19 16:00 | Falck, Reece v Lakoseljac, Christian | 6-4,6-4 |
| Vero Beach, Fl, Singles Qualifying M-ITF-USA-17A | 2021/10/18 16:00 | 포스터-에스트위크, 마튜 v Lakoseljac, Christian | 4-6,6-7 |
| ITF M15 Naples | 2021/10/13 18:30 | Lakoseljac, Christian v 베이커, 블루 | 4-6,3-6 |
| ITF M15 Naples | 2021/10/12 13:30 | Statham, Rubin v Lakoseljac, Christian | 6-3,6-0 |
| ITF M15 Naples | 2021/10/11 14:30 | 오버미어, 카일 v Lakoseljac, Christian | 4-6,0-6 |