Round: 25 Ground: Clay
| ITF USA F18 | 2017/06/14 20:40 | Johns, Collin v Hadavi, Shawn H | 6-2,3-6,3-6 |
| ITF USA F16 | 2017/05/02 18:00 | Johns, Collin v 올리비에리, 게나로 알베르토 | 4-6,4-6 |
| ITF USA F15 | 2017/04/27 20:55 | Johns, Collin v Willis, Marcus | 4-6,3-6 |
| ITF USA F15 | 2017/04/26 21:10 | 키르코브, 바실 v Johns, Collin | 1-6,1-6 |
| ITF USA F15 | 2017/04/25 14:00 | Johns, Collin v 로트사엘트, 알렉산드레 | 4-6,1-6 |
| ITF USA F15 | 2017/04/23 15:00 | Johns, Collin v 루이스, 헤이든 | 6-2,6-1 |
| ITF USA F15 | 2017/04/21 13:00 | Johns, Collin v Stillman, Tomas | 6-1,6-3 |
| Sarasota, USA, Qualifying | 2017/04/15 18:35 | Johns, Collin v 롤라, 블라즈 | 0-6,6-3,2-6 |
| ITF USA F22 Qual | 2016/06/26 15:30 | Mudge, Robbie v Speicher, John | 6-3,6-3 |
| ITF USA F20 Qual | 2016/06/19 17:00 | Speicher, John v 키르치헤머, 스트롱 | 4-6,2-6 |
| ITF USA F20 Qual | 2016/06/18 17:00 | Speicher, John v 반 메터, 요세프 W | 6-4,7-5 |
| ITF USA F18 | 2015/06/20 18:30 | 키르치헤머, 스트롱 v Speicher, John | 6-0,6-0 |