Stadium: Center Round: 24 Ground: Clay
| Challenger Sarasota | 2019/04/16 22:55 | Ryan Shane v Tennys Sandgren | 6-3,6-7,6-7 |
| Challenger Sarasota | 2019/04/15 18:40 | Daniel Nguyen v Ryan Shane | 6-7,5-7 |
| ITF M25 Calabasas | 2019/03/19 18:25 | Tom Fawcett v Ryan Shane | 6-3,7-6 |
| ITF M25 Bakersfield | 2019/03/14 04:10 | Ryan Shane v Alexander Ritschard | 5-7,5-7 |
| ITF M25 Glasgow | 2019/02/21 13:00 | Elmar Ejupovic v Ryan Shane | 6-7,7-6,6-2 |
| ITF M25 Glasgow | 2019/02/19 10:00 | Anton Matusevich v Ryan Shane | 3-6,3-6 |
| ITF M25 Barnstaple | 2019/02/14 13:00 | Danylo Kalenichenko v Ryan Shane | 6-3,6-4 |
| ITF M25 Barnstaple | 2019/02/13 10:00 | Botic Van De Zandschulp v Ryan Shane | 1-6,3-6 |
| Challenger Sarasota | 2019/04/16 19:30 | Peter Polansky v Collin Altamirano | 6-1,6-4 |
| Challenger Sarasota | 2019/04/15 19:45 | Evgeny Karlovskiy v Collin Altamirano | 7-6,4-6,4-6 |
| Challenger Taipei | 2019/04/08 09:40 | Collin Altamirano v Chien Hsun Lo | 5-7,7-5,3-6 |
| Challenger Monterrey | 2019/04/01 23:05 | Carlos Gomez-Herrera v Collin Altamirano | 6-1,6-4 |
| Challenger St Brieuc | 2019/03/25 13:20 | Collin Altamirano v Lucas Miedler | 3-6,3-6 |
| Challenger Drummondville | 2019/03/13 23:20 | Ricardas Berankis v Collin Altamirano | 6-4,7-5 |
| Challenger Drummondville | 2019/03/12 15:25 | Manuel Guinard v Collin Altamirano | 4-6,3-6 |
| Challenger Chennai | 2019/02/06 04:30 | Gianluca Mager v Collin Altamirano | 6-3,6-1 |