| ATP Newport | 07/19 17:25 | 26 | [129] James Duckworth v Alex Michelsen [190] | 6-4,3-6,0-6 | |
| ATP Newport | 07/18 15:00 | 25 | [190] Alex Michelsen v Maxime Cressy [105] | 6-7,6-4,7-5 | |
| Challenger Chicago | 07/16 18:00 | 29 | [252] Yuta Shimizu v Alex Michelsen [250] | 5-7,2-6 | |
| Challenger Chicago | 07/16 16:00 | 28 | [155] Juncheng Shang v Alex Michelsen [250] | 6-4,5-7,3-6 | |
| Challenger Chicago | 07/14 18:10 | 27 | Kei Nishikori v Alex Michelsen | 6-7,6-3,1-6 | |
| Challenger Chicago | 07/13 16:55 | 26 | [250] Alex Michelsen v Aleksandar Kovacevic [120] | 6-4,6-2 | |
| Challenger Chicago | 07/11 17:20 | 25 | [246] Li Tu v Alex Michelsen [250] | 6-7,7-6,6-7 | |
| ATP Mallorca | 06/26 12:00 | 25 | [250] Alex Michelsen v Christopher Eubanks [77] | 3-6,7-6,5-7 | |
| ATP Mallorca | 06/25 13:10 | 19 | [291] Lloyd Harris v Alex Michelsen [246] | 6-7,6-4,6-1 | |
| ATP Mallorca | 06/24 12:50 | 14 | [298] Daniel Masur v Alex Michelsen [246] | 5-7,4-6 | |
| Challenger Blois | 06/20 10:55 | 25 | [340] Murkel Dellien v Alex Michelsen [246] | 6-3,7-5 | |
| Challenger Blois | 06/19 12:25 | 19 | [246] Alex Michelsen v Juan Bautista Otegui [431] | 5-7,6-3,6-3 | |
| Challenger Blois | 06/18 12:20 | 14 | Alex Michelsen v Axel Garcian | 6-3,6-3 | |
| Challenger Nottingham | 06/15 12:05 | 26 | [139] Gabriel Diallo v Alex Michelsen [257] | 3-6,7-5,6-3 | |
| Challenger Nottingham | 06/13 15:20 | 25 | [257] Alex Michelsen v Aleksandar Vukic [91] | 2-6,7-6,6-4 | |
| Challenger Nottingham | 06/12 11:45 | 19 | [186] Laurent Lokoli v Alex Michelsen [257] | 2-6,6-4,2-6 | |
| Challenger Nottingham | 06/11 15:40 | 45 | Harry Wendelken v Alex Michelsen | 6-4,3-6,5-7 | |
| Challenger Little Rock | 06/01 16:00 | 26 | [259] Alexis Galarneau v Alex Michelsen [262] | 3-6,6-3,6-3 | |
| Challenger Little Rock | 05/30 20:25 | 25 | [262] Alex Michelsen v Denis Yevseyev [310] | 4-6,6-3,7-5 | |
| Challenger Savannah | 04/24 18:45 | 25 | [263] Alex Michelsen v Patrick Kypson [378] | 6-4,3-6,6-7 | |
| Challenger Tallahassee | 04/21 19:55 | 27 | [163] Enzo Couacaud v Alex Michelsen [274] | 7-5,7-5 | |
| Challenger Tallahassee | 04/20 16:30 | 26 | [486] Lucas Pouille v Alex Michelsen [274] | 3-6,5-7 | |
| Challenger Tallahassee | 04/18 15:00 | 25 | [274] Alex Michelsen v Camilo Ugo Carabelli [130] | 5-7,6-3,6-2 | |
| ITF M25 Calabasas | 03/26 19:30 | 29 | [312] Alex Michelsen v Nathan Ponwith [457] | 3-6,7-6,5-7 | |
| ITF M25 Calabasas | 03/25 19:50 | 28 | [312] Alex Michelsen v Luke Saville [81] | 6-2,6-1 | |
| ITF M25 Calabasas | 03/24 16:55 | 27 | Alex Michelsen v Kris Van Wyk | 7-5,7-6 | |
| ITF M25 Calabasas | 03/23 22:20 | 26 | Alex Michelsen v Murphy Cassone | 6-4,6-4 | |
| ITF M25 Calabasas | 03/23 18:00 | 25 | Alex Michelsen v Colin Markes | 6-3,6-2 | |
| ITF M25 Bakersfield | 03/18 22:50 | 28 | Alex Michelsen v Kyle Kang | 2-6,1-6 | |
| ITF M25 Bakersfield | 03/17 18:00 | 27 | [306] Alex Michelsen v Naoki Nakagawa [455] | 6-4,6-1 |