ATP · Rank #1326
William Jansen
ITF Men M25 Aldershot Hard ITF Men M25 Aldershot (Hard) 2 matches
ITF Men M25 Champaign IL Hard ITF Men M25 Champaign IL (Hard) 4 matches
W. Jansen
N. Honda
K. Bennani
W. Jansen
I. M. Fahim
W. Jansen
W. Jansen
K. Hance
ITF Men M25 Louisville Hard ITF Men M25 Louisville (Hard) 2 matches
Challenger Nottingham 3 Great Britain Grass Challenger Nottingham 3 Great Britain (Grass) 3 matches
ITF Men M15 Kayseri Hard ITF Men M15 Kayseri (Hard) 1 match
Challenger Nottingham 2 Great Britain Qualifying Grass Challenger Nottingham 2 Great Britain Qualifying (Grass) 1 match
Challenger Birmingham Great Britain Qualifying Grass Challenger Birmingham Great Britain Qualifying (Grass) 1 match
ITF Men M25 Columbus Hard ITF Men M25 Columbus (Hard) 1 match
From the matches in our database
William Jansen is a 20-year-old left-handed professional tennis player, currently ranked world No. 1326. The serve is the main weapon: 7.7 aces per match and 73.6% of first-serve points won over the last 52 weeks. Against serve the numbers sit mid-table — 37.1% of points won, 43% of break chances taken. Service games rarely slip away: 135.7% of them are held. No surface has produced a winning record so far — Hard 5-5, Grass 2-3.
Results keep swinging: 3 up and 2 down across the last 5. The longest match we have on record ran to 33 games, against F. Gill. More of the matches we cover came at ITF Men M25 Champaign IL than anywhere else — 4 of them. Predictions cover match winner and score, alongside serve, return and break-point statistics. Most recently seen in our data at ITF Men M25 Aldershot.
Frequently Asked Questions
How accurate are the AI predictions for William Jansen?
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Our model has graded 14 matches involving William Jansen and got 10 right — a hit rate of 71.4%. Every completed pick stays on the page, so the figure can be checked.