| ATP Brisbane | 01/05 02:35 | 25 |
[87] James Duckworth
v
Alex Michelsen [38]
|
7-6,6-7,3-6 | |
| 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] Jakub Mensik
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 | |
| ATP Toronto | 08/05 02:00 | 27 |
[34] Alex Michelsen v
Karen Khachanov
[16]
|
4-6,6-7 | |
| ATP Toronto | 08/02 16:30 | 26 |
[34] Alex Michelsen v
Learner Tien
[61]
|
6-3,6-3 | |
| ATP Toronto | 07/31 16:30 | 25 |
[10] Lorenzo Musetti
v
Alex Michelsen [34]
|
6-3,6-7,4-6 | |
| ATP Toronto | 07/29 16:30 | 24 |
[143] Tomas Barrios Vera
v
Alex Michelsen [34]
|
6-7,3-6 | |
| ATP Washington | 07/22 22:05 | 25 |
[34] Alex Michelsen v
Daniel Evans
[144]
|
4-6,4-6 | |
| Wimbledon | 07/01 10:00 | 23 |
[32] Alex Michelsen v
Miomir Kecmanovic
[49]
|
2-6,6-3,3-6,6-3,6-7 | |
| ATP Mallorca | 06/27 16:00 | 28 |
[83] Corentin Moutet
v
Alex Michelsen [33]
|
6-4,7-6 | |
| ATP Mallorca | 06/26 16:00 | 27 |
[33] Alex Michelsen v
Roberto Bautista Agut
[43]
|
6-4,7-6 | |
| ATP Mallorca | 06/25 12:30 | 26 |
[33] Alex Michelsen v
Sarita Suwanna'ihan
[101] |
6-4,6-4 | |
| ATP Halle | 06/20 09:30 | 27 |
[33] Alex Michelsen v
Daniil Medvedev
[11]
|
4-6,3-6 | |
| ATP Halle | 06/18 14:35 | 26 |
[33] Alex Michelsen v
Stefanos Tsitsipas
[25]
|
7-6,7-5 | |
| ATP Halle | 06/17 11:20 | 25 |
[18] Francisco Cerundolo
v
Alex Michelsen [33]
|
6-2,5-7,4-6 | |
| ATP Stuttgart | 06/12 09:00 | 26 |
[35] Alex Michelsen v
Justin Engel
[281] |
4-6,4-6 | |
| ATP Stuttgart | 06/10 16:20 | 25 |
[35] Alex Michelsen v
Gael Monfils
[42]
|
6-4,4-6,6-3 | |
| French Open | 05/25 13:45 | 23 |
[33] Alex Michelsen v
Juan Manuel Cerundolo
[109]
|
3-6,2-6,4-6 | |
| ATP Geneva | 05/18 12:45 | 25 |
[40] Nuno Borges
v
Alex Michelsen [32]
|
4-6,6-3,6-3 | |
| ATP Rome | 05/09 12:40 | 24 |
[32] Alex Michelsen v
Laslo Djere
[64]
|
0-6,3-6 |
Alex T. Michelsen (born 25 August 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 best doubles ranking of No. 67, achieved on 30 June 2025.