| Challenger Champaign | 11/11 16:00 | 25 | Micah Braswell v Johannus Monday | 7-6,6-4 | |
| Challenger Knoxville | 11/05 00:00 | 25 | Max Wiskandt v Johannus Monday | Cancelled | |
| Challenger Charlottesville | 11/01 18:00 | 28 | [207] Rafael Jodar v Johannus Monday [212] | Retired | |
| Challenger Charlottesville | 10/31 19:05 | 27 |
[212] Johannus Monday v
Mitchell Krueger
[242] 
|
6-4,6-4 | |
| Challenger Charlottesville | 10/30 15:00 | 26 |
Johannus Monday v
Cannon Kingsley
|
6-4,6-7,6-1 | |
| Challenger Charlottesville | 10/28 19:00 | 25 | Johannus Monday v Ronit Karki | 6-3,7-5 | |
| Challenger Sioux Falls | 10/26 18:00 | 29 |
[238] Johannus Monday v
Patrick Kypson
[166] 
|
7-6,6-7,5-7 | |
| Challenger Sioux Falls | 10/25 18:25 | 28 | [300] Mats Rosenkranz v Johannus Monday [238] | 4-6,6-7 | |
| Challenger Sioux Falls | 10/24 17:00 | 27 |
[287] Andres Martin
v
Johannus Monday [238] |
3-6,3-6 | |
| Challenger Sioux Falls | 10/22 18:30 | 26 | [329] Alfredo Perez v Johannus Monday [238] | 5-7,3-6 | |
| Challenger Sioux Falls | 10/21 17:35 | 25 | [238] Johannus Monday v Donev/Lazarov [181] | 2-6,6-4,6-4 | |
| Challenger Lincoln | 10/18 17:00 | 28 |
[230] Johannus Monday v
Martin Damm
[240] 
|
4-6,4-6 | |
| Challenger Lincoln | 10/17 16:00 | 27 |
[230] Johannus Monday v
Michael Mmoh
[315] 
|
6-3,6-3 | |
| Challenger Lincoln | 10/15 16:40 | 26 | [230] Johannus Monday v Antoine Ghibaudo [409] | 6-4,6-2 | |
| Challenger Lincoln | 10/14 01:25 | 25 | [230] Johannus Monday v Tyler Zink [278] | 6-4,6-4 | |
| Challenger Tiburon | 10/02 18:00 | 26 | [347] Tyler Zink v Johannus Monday [229] | 6-4,6-3 | |
| Challenger Tiburon | 09/30 22:25 | 25 |
[313] Alex Rybakov
v
Johannus Monday [228] |
3-6,6-4,2-6 | |
| Challenger Las Vegas | 09/23 20:35 | 25 | [293] Amreen Naaz v Johannus Monday [228] | 7-6,6-4 | |
| Challenger Columbus | 09/16 14:00 | 25 |
[239] Johannus Monday v
Darwin Blanch
[355] 
|
3-6,6-3,6-7 | |
| Challenger Winston-Salem | 09/08 22:10 | 25 | Blaise Bicknell v Johannus Monday | 6-4,5-7,7-5 | |
| US Open | 08/18 16:30 | 14 |
[231] Johannus Monday v
Harold Mayot
[152] 
|
5-7,3-6 | |
| Challenger Grodzisk Mazowiecki | 08/05 13:30 | 25 | [234] Johannus Monday v Itri [276] | 3-6,4-6 | |
| Challenger Segovia | 07/25 16:30 | 27 | [298] Nicolas Alvarez Varona v Johannus Monday [216] | 6-4,7-6 | |
| Challenger Segovia | 07/24 15:30 | 26 | [376] Inaki Montes-De La Torre v Johannus Monday [216] | 6-4,5-7,3-6 | |
| Challenger Segovia | 07/22 10:25 | 25 | [263] Arthur Reymond v Johannus Monday [216] | 4-6,6-7 | |
| Challenger Pozoblanco | 07/18 17:30 | 27 |
[227] Johannus Monday v
Daniel Merida
[233] 
|
3-6,7-5,4-6 | |
| Challenger Pozoblanco | 07/16 17:30 | 26 |
[227] Johannus Monday v
Matias Soto
[262] 
|
7-6,7-6 | |
| Challenger Pozoblanco | 07/15 16:00 | 25 | [227] Johannus Monday v Fabrizio Andaloro [358] | 6-4,7-6 | |
| Challenger Nottingham | 07/08 10:00 | 25 |
Edward Winter
v
Johannus Monday |
2-6,7-6,6-2 | |
| Wimbledon | 07/01 10:00 | 23 |
[224] Johannus Monday v
Tommy Paul
[13] 
|
4-6,4-6,2-6 |
Wikipedia - Johannus Monday
Johannus Monday (born 22 January 2002) is a British tennis player. He has a career high singles ranking of No. 212, achieved on 27 October 2025. He has a career high doubles ranking of No. 192 achieved on 28 August 2023.
History
After winning the title of the men's doubles of the Nottingham Open alongside Jacob Fearnley, the pair received wildcards for the 2023 Wimbledon Championships. He was also given a wildcard into the men's qualifying singles and beat Mili Poljicak before pushing the experienced Radu Albot to three sets. In the doubles, he and Fearnley beat Andre Goransson and Ben McLachlan in the opening round before losing to Matthew Ebden and Rohan Bopanna.
He won three consecutive singles titles on the ITF tennis tour in October 2024. His haul included the singles and doubles titles at the M25 Louisville, a singles victory in Norman, Oklahoma, and a singles victory in Harlingen, Texas.
He began 2025 with another title at that level in Sunderland before adding a fifth in six months in Bakersfield, United States in March 2025, defeating American Alex Rybakov in the final in straight sets to seal the title.
In June 2025, Monday was awarded a wildcard to make his major tournament main-draw singles debut at Wimbledon, where he lost to 13th seed Tommy Paul in the first round.
In September 2025, Monday combined with Patrick Harper to win the doubles title at the Columbus Challenger, defeating George Goldhoff and Theodore Winegar in the final.