| Challenger Champaign | 11/17 18:55 | 27 | [374] Quinn, Ethan v 셀다루식, 니노 [305] | 6-3,6-3 | |
| Challenger Champaign | 11/15 17:00 | 26 | [374] Quinn, Ethan v 키르치헤머, 스트롱 [401] | 6-1,6-4 | |
| Challenger Champaign | 11/14 16:00 | 25 | [146] 나바, 에밀리오 v Quinn, Ethan [374] | 3-6,2-6 | |
| Challenger Knoxville | 11/07 15:00 | 25 | [267] 산드그렌, 테니스 v Quinn, Ethan [374] | 4-6,7-6,7-6 | |
| Challenger Charlottesville | 11/04 19:25 | 28 | [376] 마요, 아이단 v Quinn, Ethan [458] | 3-6,6-4,6-3 | |
| Challenger Charlottesville | 11/03 22:00 | 27 | [126] 파이레, 베노이트 v Quinn, Ethan [458] | 6-7,2-6 | |
| Challenger Charlottesville | 11/02 16:00 | 26 | [458] Quinn, Ethan v 나바, 에밀리오 [148] | 6-3,6-1 | |
| Challenger Charlottesville | 10/31 14:00 | 25 | [458] Quinn, Ethan v 크루에겔, 미트첼 [294] | 3-6,7-6,6-4 | |
| Challenger Charlottesville | 10/30 14:00 | 19 | Quinn, Ethan v Dylan Dietrich | 7-6,6-3 | |
| Challenger Charlottesville | 10/29 14:00 | 14 | Quinn, Ethan v Hopper, James | 6-0,6-3 | |
| Challenger Fairfield | 10/09 19:15 | 19 | [390] 키르치헤머, 스트롱 v Quinn, Ethan [466] | 7-6,7-5 | |
| Challenger Fairfield | 10/08 21:35 | 14 | 파누, 키란팔 v Quinn, Ethan | 2-6,7-6,4-6 | |
| Challenger Tiburon | 10/01 19:40 | 14 | [493] Quinn, Ethan v 마요, 아이단 [408] | 4-6,4-6 | |
| Charleston, SC, USA | 09/29 17:50 | 27 | [493] Quinn, Ethan v Abdullah Shelbayh [274] | 2-6,4-6 | |
| Charleston, SC, USA | 09/28 17:45 | 26 | [493] Quinn, Ethan v 마요, 아이단 [408] | 7-5,7-5 | |
| Charleston, SC, USA | 09/26 15:30 | 25 | [202] 갈라르네아우, 알렉시스 v Quinn, Ethan [492] | 2-6,6-7 | |
| Challenger Columbus | 09/19 16:00 | 25 | [399] Gomez, Federico Agustin v Quinn, Ethan [492] | 7-5,7-6 | |
| Challenger Cary | 09/12 00:20 | 25 | [207] 스바지다, 자차리 v Quinn, Ethan [491] | 4-6,6-3,6-4 | |
| US Open, New York, USA | 08/28 20:30 | 23 | [76] 자파타 미랄레스, 베르나베 v Quinn, Ethan [475] | 6-4,6-4,6-3 | |
| Challenger Stanford | 08/14 18:45 | 25 | [475] Quinn, Ethan v 나바, 에밀리오 [187] | 1-6,2-6 | |
| Challenger Cary | 08/07 20:30 | 25 | [465] Quinn, Ethan v 브로우벨, 기지스 [138] | 7-6,3-6,1-6 | |
| Atlanta, USA | 07/24 17:00 | 25 | [394] Quinn, Ethan v 부키크, 알렉산달 [82] | 6-7,3-6 | |
| Newport, USA | 07/19 17:00 | 26 | [14] 파울, 토미 v Quinn, Ethan [434] | 6-4,6-2 | |
| Newport, USA | 07/18 19:45 | 25 | [434] Quinn, Ethan v Mukund, S. [356] | 6-3,6-1 | |
| Challenger Chicago | 07/15 00:30 | 27 | [477] Quinn, Ethan v Shang, Juncheng [155] | 5-7,1-6 | |
| Challenger Chicago | 07/13 18:20 | 26 | [326] 스쿨케이트, 트리스탄 v Quinn, Ethan [477] | 6-4,3-6,2-6 | |
| Challenger Chicago | 07/11 15:00 | 25 | [399] 에스코베도, 에르네스토 v Quinn, Ethan [477] | 6-7,6-0,4-6 | |
| Challenger Bloomfield Hills | 07/05 14:00 | 25 | [385] Mukund, S. v Quinn, Ethan [477] | 7-5,4-6,7-6 | |
| Tulsa, Singles Main, M-ITF-USA-16A | 06/24 15:00 | 26 | 로드리구에스, 다니엘 v Quinn, Ethan | Cancelled | |
| Tulsa, Singles Main, M-ITF-USA-16A | 06/23 13:55 | 27 | [245] 왈톤, 아담 v Quinn, Ethan [395] | 6-2,7-6 |