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.
Infobox
Country (sports)
United Kingdom
Born
(2002-01-22) 22 January 2002 (age 23)Hull, England
Height
1.98 m (6 ft 6 in)
Plays
Left-handed (two-handed backhand)
College
Tennessee
Prize money
$ 141,750
Career record
1–1 (at ATP Tour level, Grand Slam level, and in Davis Cup)
Career titles
0
Highest ranking
No. 192 (28 August 2023)
Current ranking
No. 317 (30 June 2025)
Wimbledon
2R (2023)
US Open
Q1 (2025)
Tables
Multi-metric bars
World heat map
ATP Challenger (0–1)
ATP Challenger (0–1)
Legend
ATP Challenger (0–1)
ITF WTT (8–0)
ITF WTT (8–0)
Legend
ITF WTT (8–0)
Ranked list
Legend
ATP Challenger (0–1)
ITF WTT (8–0)
· ATP Challenger and ITF World Tennis Tour finals › Singles: 8 (8–0)
Multi-metric bars
World heat map
USA M15, South Bend
USA M15, South Bend
Result
Win
W–L
1–0
Date
Jun 2022
Tournament
USA M15, South Bend
Tier
WTT
Opponent
Sekou Bangoura
Score
6–3, 7–5
USA M25, Decatur
USA M25, Decatur
Result
Win
W–L
2–0
Date
Aug 2022
Tournament
USA M25, Decatur
Tier
WTT
Opponent
Ezekiel Clark
Score
6–3, 6–3
USA M25, East Lansing
USA M25, East Lansing
Result
Win
W–L
3–0
Date
Jul 2024
Tournament
USA M25, East Lansing
Tier
WTT
Opponent
Aidan McHugh
Score
6–2, 6–2
USA M25, Louisville
USA M25, Louisville
Result
Win
W–L
4–0
Date
Oct 2024
Tournament
USA M25, Louisville
Tier
WTT
Opponent
Tyler Zink
Score
6–2, 6–3
USA M25, Harlingen
USA M25, Harlingen
Result
Win
W–L
5–0
Date
Oct 2024
Tournament
USA M25, Harlingen
Tier
WTT
Opponent
Tadeas Paroulek
Score
6–0, 6–1
USA M25, Norman
USA M25, Norman
Result
Win
W–L
6–0
Date
Oct 2024
Tournament
USA M25, Norman
Tier
WTT
Opponent
Juan Carlos Aguilar
Score
6–1, 6–3
UK M25, Sunderland
UK M25, Sunderland
Result
Win
W–L
7–0
Date
Jan 2025
Tournament
UK M25, Sunderland
Tier
WTT
Opponent
Ryan Peniston
Score
6–4, 6–2
USA M25, Bakersfield
USA M25, Bakersfield
Result
Win
W–L
8–0
Date
Mar 2025
Tournament
USA M25, Bakersfield
Tier
WTT
Opponent
Alex Rybakov
Score
6–2, 6–4
MarketBeat Open, US
MarketBeat Open, US
Result
Loss
W–L
8–1
Date
Oct 2025
Tournament
MarketBeat Open, US
Tier
Challenger
Opponent
Patrick Kypson
Score
7–6(7–2), 6–7(4–7), 5–7
Ranked list
Result
W–L
Date
Tournament
Tier
Surface
Opponent
Score
Win
1–0
Jun 2022
USA M15, South Bend
WTT
Hard
Sekou Bangoura
6–3, 7–5
Win
2–0
Aug 2022
USA M25, Decatur
WTT
Hard
Ezekiel Clark
6–3, 6–3
Win
3–0
Jul 2024
USA M25, East Lansing
WTT
Hard
Aidan McHugh
6–2, 6–2
Win
4–0
Oct 2024
USA M25, Louisville
WTT
Hard
Tyler Zink
6–2, 6–3
Win
5–0
Oct 2024
USA M25, Harlingen
WTT
Hard
Tadeas Paroulek
6–0, 6–1
Win
6–0
Oct 2024
USA M25, Norman
WTT
Hard (i)
Juan Carlos Aguilar
6–1, 6–3
Win
7–0
Jan 2025
UK M25, Sunderland
WTT
Hard (i)
Ryan Peniston
6–4, 6–2
Win
8–0
Mar 2025
USA M25, Bakersfield
WTT
Hard (i)
Alex Rybakov
6–2, 6–4
Loss
8–1
Oct 2025
MarketBeat Open, US
Challenger
Hard (i)
Patrick Kypson
7–6(7–2), 6–7(4–7), 5–7
Multi-metric bars
World heat map
ATP Challenger (3–0)
ATP Challenger (3–0)
Legend
ATP Challenger (3–0)
ITF World Tennis Tour (6–2)
ITF World Tennis Tour (6–2)
Legend
ITF World Tennis Tour (6–2)
Ranked list
Legend
ATP Challenger (3–0)
ITF World Tennis Tour (6–2)
Multi-metric bars
World heat map
Hard (7–2)
Hard (7–2)
Clay (0–0)
Clay (0–0)
Grass (2–0)
Grass (2–0)
Carpet (0–0)
Carpet (0–0)
Ranked list
Finals by surface
Hard (7–2)
Clay (0–0)
Grass (2–0)
Carpet (0–0)
· ATP Challenger and ITF World Tennis Tour finals › Doubles: 11 (9–2)