← Search

Joon Sung

Add to scout listFree account. Monday email when they play.
Northbrook, IL
4.0C year-end 2025
i
Computer — generated by the USTA algorithm from match play
185 matches · 119W–66L · seasons 2018–2026
Match history185 matches
W
2026-10-17 · #1 Doubles · 4.0 · with Douglas Ip championship
loading the estimate
2-6, 6-4, 1-0
L
2026-10-17 · #4 Doubles · 4.0 · with Douglas Ip championship
loading the estimate
6-4, 0-6, 0-1
W
2026-10-16 · #1 Doubles · 4.0 · with Douglas Ip championship
loading the estimate
6-4, 7-6
W
2026-08-23 · #3 Doubles · 4.0 · with Jason Hui championship
loading the estimate
6-0, 5-7, 1-0
L
2026-08-22 · #3 Doubles · 4.0 · with Jason Hui championship
loading the estimate
2-6, 3-6
W
2026-08-08 · #3 Doubles · 4.0 · with Jason Hui championship
loading the estimate
6-7, 6-4, 1-0
W
2026-08-02 · #2 Doubles · 4.0 · with Jason Hui championship
loading the estimate
4-6, 7-5, 1-0
W
2026-08-02 · #2 Doubles · 4.0 · with Jason Hui championship
loading the estimate
6-0, 6-0
L
2026-07-21 · CDTA S M40&O8.0 1.Nbk Marberry Tue 7 $28 $28 · #1 Doubles · 8.0 · with Patricia Bustamante mixed
doesn’t count toward your NTRP rating
5-7, 2-5
W
Default
2026-07-11 · CDTA S 40&OM4.0 1.Nielsen Phelps Sat 4 $22 · #2 Doubles · 4.0 · with Stefan Kutko
doesn’t count toward your NTRP rating
6-0, 6-0
W
2026-07-11 · CDTA S 18&OM4.0 11.Nielsen Hui Sun 5 $22 · #3 Doubles · 4.0 · with Aidan Kim
loading the estimate
6-3, 6-2
L
2026-06-20 · CDTA S M40&O8.0 1.Nbk Marberry Tue 7 $28 $28 · #1 Doubles · 8.0 · with Christine Munteanu mixed
doesn’t count toward your NTRP rating
3-6, 7-6, 0-1
Where you rank locallyagainst everyone at your level
Teams49 teams · 2019–2026
Over timerating by season, and how you rank
By level6 levels played
3.0
100%
4W–0L · 61.2% of games
3.5
1W–0L
not enough matches yet
4.0
67.4%
58W–28L · 55.4% of games
7.5mixed
80%
4W–1L · 62.1% of games
8.0mixed
57.8%
48W–35L · 54.8% of games
8.5mixed
2W–1L
not enough matches yet

Games won matters more than matches won — NTRP adjusts on margins.

By lineusually #1 Doubles, 51% of the time
#1 Doubles
51%
94 matches
#2 Doubles
25%
46 matches
#3 Doubles
21%
39 matches
#1 Singles
2%
3 matches
#4 Doubles
1%
2 matches
#2 Singles
1%
1 match

How often, across every team and every match we hold — including ones that do not count toward a rating. Advanced stats has a court-position table too, and it answers a different question: how well you do there, over matches that count. A team’s own page shows how that one team uses you.

Not affiliated with or endorsed by the USTA. Ratings labelled as published are USTA year-end figures; anything we describe as an estimate is ours, not USTA’s. Match data is from USTA TennisLink.

Success is a journey, not a destination. The doing is often more important than the outcome.
Arthur Ashe