| UTR Pro Florida | 2023/12/10 17:51 | Chad Miller v John Chin | 1-6,2-6 |
| UTR Pro Florida | 2023/08/04 13:30 | John Chin v Will Peters | 1-6,1-6 |
| UTR Pro Florida | 2023/08/02 15:00 | Juan Jose Bianchi v John Chin | 6-3,3-6,1-6 |
| UTR Pro Florida | 2023/08/01 12:00 | Gabriel Hurtado v John Chin | 6-4,0-6,6-1 |
| UTR Pro Florida | 2023/07/30 16:21 | John Chin v 쿠하르, 맷 | 2-6,1-6 |
| ITF M15 South Bend | 2023/06/21 15:00 | John Chin v 오졸린스, 카를리스 | 1-6,3-6 |
| ITF M15 Santo Domingo | 2022/12/01 16:30 | John Chin v Lilov, Victor | 2-6,2-6 |
| ITF M15 Santo Domingo | 2022/11/30 13:30 | Marshall, Kaipo v John Chin | 6-4,3-6,4-6 |
| UTR Pro Tennis Series Florida | 2022/10/18 20:12 | Kozlov, Boris v Yannik Rahman | 1-6,2-6 |
| UTR Pro Tennis Series Florida | 2022/10/17 16:30 | Rudy Quan v Kozlov, Boris | 4-6,6-3,6-3 |
| ITF USA F32 | 2018/11/15 20:50 | Kozlov, Boris v 그라시 마주치, 주안 파블로 | 6-7,4-6 |
| ITF USA F32 | 2018/11/15 15:00 | Cabrera, Juan Ignacio v Kozlov, Boris | 7-6,4-6,10-12 |
| ITF USA F32 | 2018/11/10 18:00 | Gomez Montesa, Sergio v Kozlov, Boris | 6-7,4-6 |
| ITF USA F21 Qual | 2018/07/30 15:00 | Kozlov, Boris v 코즈비노브, 알렉산더 | 6-4,6-7,2-6 |
| ITF USA F20 Qual | 2018/07/21 15:00 | Kozlov, Boris v 소델룬드, 칼 | 3-6,1-6 |
| ITF USA F19B Qual | 2018/07/15 15:00 | 페레즈, 알프레도 v Kozlov, Boris | 6-3,6-3 |