World No. 534 Sander Jong is 26 and plays right-handed. No clear favourite surface: Hard 3-1, Clay 24-10, Grass 1-1. With 59.1% of first serves in play and 76% of them turned into points, the first delivery is a steady asset. A real threat on return: 116.8% of break points are converted. 234.3% of service games held: breaking this serve is hard.

Mixed recent form, 3-2 over the last 5. No match in our data has lasted longer than the 32-game duel with L. Wiedenmann. Open any of these matches for BananaCore's pick, a predicted scoreline and the serve and return figures behind them. Latest tournament on record: ITF Men M25 Zaragoza.

Serving and returning

1st serves in

—

Won on 1st serve

—

Won on 2nd serve

—

Aces per match

2.6

Double faults per match

2.7

Break points saved

—

Return games won

—

Points won on return

50.3%

Service points won

—

All points won

114.2%

Career Past 12 months

Titles

Finals

Semi-final runs

Tournaments played

Results by tournament 2 titles

ITF M15 Haren Men ITF Winner ITF M15 Villena 2 Men ITF Winner ITF M15 Dubrovnik Men ITF Final ITF M25 Gijón Men ITF Final ITF M25 Sabadell 2 Men ITF Final ITF M15 Alkmaar Men ITF Quarter-Finals ITF M25 Deauville Men ITF Quarter-Finals ITF M25 Oldenzaal Men ITF Quarter-Finals ITF M25 The Hague Men ITF Quarter-Finals ITF M15 Sharm El Sheikh Men ITF Round of 16 ITF M15 The Hague Men ITF Round of 16 Hamburg, Germany Challenger Round of 32 Bad Rappenau, Germany Challenger Round of 32 ITF M15 Oegstgeest Men ITF Round of 32

ITF M15 Offenbach Men ITF Round of 32

ITF M15 Sharm El Sheikh 2 Men ITF Round of 32 ITF M25 Angers Men ITF Round of 32 ITF M25 Louny Men ITF Round of 32 ITF M25 Saint-Dizier Men ITF Round of 32 ITF M25 Troisdorf Men ITF Round of 32 's-Hertogenbosch ATP Qualifying Bunschoten, Netherlands Challenger Qualifying

Sorted by best result, not by date

Year by year

2026

2026in progress

4–3

W–L

Matches

3–2

Tiebreaks

7.4

Aces per match

4.1

Double faults per match

1st serves in 59.4%

Won on 1st serve 73%

Won on 2nd serve 50.2%

Break points converted 37%

Break points saved 52.8%

2025

2–1

W–L

Matches

0–2

Tiebreaks

13.3

Aces per match

3.3

Double faults per match

1st serves in 59.3%

Won on 1st serve 83.1%

Won on 2nd serve 51.8%

Break points converted 50%

Break points saved 81.8%

Official singles figures for this season, as published by the tour. Don't expect the wins and losses to match our Predictions tab: that record covers only the matches we forecast. A dash marks a figure with no data yet.

Common questions

How often do our calls on Sander Jong come true?

28 of our 40 graded predictions on Sander Jong's matches were right, 70%. The latest 22 are listed below, each pick next to its result.

Which opponent has Sander Jong met most in our records?

Manvydas Balciunas, 2 times, with Sander Jong at 2-0 in those matches.