| ATP Paris | 10/27 15:10 | 24 |
[35] Alex Michelsen v
Zizou Bergs
[41]
|
3-6,6-2,2-6 | |
| ATP Vienna | 10/21 15:45 | 25 |
[21] Francisco Cerundolo
v
Alex Michelsen [34]
|
6-3,6-1 | |
| ATP Almaty | 10/18 13:00 | 28 |
[41] Corentin Moutet
v
Alex Michelsen [36]
|
7-5,6-4 | |
| ATP Almaty | 10/17 09:10 | 27 |
[102] Shintaro Mochizuki
v
Alex Michelsen [36]
|
3-6,6-3,2-6 | |
| ATP Almaty | 10/16 06:00 | 26 |
[84] Aleksandar Vukic
v
Alex Michelsen [36]
|
3-6,2-6 | |
| ATP Almaty | 10/15 07:45 | 25 |
[237] Beibit Zhukayev
v
Alex Michelsen [36]
|
2-6,3-6 | |
| ATP Shanghai | 10/04 05:55 | 24 |
[54] Arthur Rinderknech
v
Alex Michelsen [34]
|
6-3,6-4 | |
| ATP Tokyo | 09/25 06:55 | 25 |
[32] Alex Michelsen v
Ethan Quinn
[81]
|
5-7,2-6 | |
| Laver Cup | 09/19 21:55 | 2 |
[17] Andreescu/Robillard-Millette
v
Alex Michelsen [32]
|
6-1,6-7,10-8 | |
| US Open | 08/25 17:35 | 23 |
[54] Francisco Comesana
v
Alex Michelsen [32]
|
1-6,6-3,6-4,6-4 | |
| ATP Cincinnati | 08/11 15:00 | 25 |
[33] Alex Michelsen v
Holger Rune
[9]
|
6-7,3-6 | |
| ATP Cincinnati | 08/09 15:00 | 24 |
[33] Alex Michelsen v
Corentin Moutet
[44]
|
3-6,6-3,6-4 |
Alex T. Michelsen (born August 25, 2004) is an American professional tennis player. He has a career-high ATP singles ranking of world No. 30, achieved on 14 July 2025 and a doubles ranking of No. 67, achieved on 30 June 2025.