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Ji Sung Nam

15/08/1993 · right-handed

Global Elo

1514

Record

4-7

ATP / Tour Record

Wins: 4
Losses: 7
Matches: 11

Challenger Record

Wins: 93
Losses: 105
Matches: 198

Elo and Record by Surface

Clay 1347

Wins: 0
Losses: 0
Matches: 0

Challenger

Wins: 5
Losses: 13
Matches: 18

Hard 1539

Wins: 3
Losses: 7
Matches: 10

Challenger

Wins: 87
Losses: 91
Matches: 178

Grass 1561

Wins: 1
Losses: 0
Matches: 1

Elo Over Time

2010-05-10 2026-09-11 · 1530

209 matches in this range.

Performance vs. the Odds

Career record grouped by how big a favorite the market made Ji Sung Nam, based on their average odds.

Heavy favorite (odds below 1.30) 0W–0L · 0.0%

Favorite (odds 1.30-1.80) 1W–0L · 100.0%

Even match (odds 1.80-2.20) 2W–2L · 50.0%

Underdog (odds 2.20-4.00) 0W–0L · 0.0%

Heavy underdog (odds above 4.00) 1W–2L · 33.3%

8 matches with market odds since 2026-05-24.

Serve & Return

Serve and return win rates from the last 10 matches at the selected level.

1st Serve In % 59.5%

1st Serve Points Won % 66.8%

2nd Serve Points Won % 48.7%

Return Points Won vs 1st Serve % 32.2%

Return Points Won vs 2nd Serve % 52.8%

Aces per Service Game 0.39

Double Faults per Service Game 0.32

Based on the last 10 ATP/Grand Slam matches.

1st Serve In % 59.4%

1st Serve Points Won % 72.1%

2nd Serve Points Won % 46.0%

Return Points Won vs 1st Serve % 29.5%

Return Points Won vs 2nd Serve % 44.8%

Aces per Service Game 0.59

Double Faults per Service Game 0.24

Based on the last 10 Challenger matches.

Break Point Performance

How the player handles the biggest points, from the last 10 matches at the selected level.

Break Points Saved % 63.0%

Break Points Converted % 52.5%

Based on the last 10 ATP/Grand Slam matches.

Break Points Saved % 54.0%

Break Points Converted % 42.1%

Based on the last 10 Challenger matches.

Recent Matches

L Hard Shanghai challenger · QF · 2026-09-11

vs Luca Castelnuovo #461

6-4 6-4

Ji Sung Nam Luca Castelnuovo

17 Aces 3

0 Double Faults 2

- Service Points -

- First Serve In -

34 First Serve Won 25

8 Second Serve Won 7

3 Break Points Saved 3

4 Break Points Faced 6

- Winners -

- Unforced Errors -

2.0 Average Odds 1.8

W Hard Shanghai challenger · R16 · 2026-09-10

vs Denis Yevseyev #444

6-2 6-2

Ji Sung Nam Denis Yevseyev

5 Aces 3

1 Double Faults 0

- Service Points -

- First Serve In -

29 First Serve Won 30

11 Second Serve Won 8

2 Break Points Saved 4

2 Break Points Faced 8

- Winners -

- Unforced Errors -

1.9 Average Odds 1.9

W Hard Shanghai challenger · 1. round · 2026-09-08

vs Rei Sakamoto #157

7-6 6-4

Ji Sung Nam Rei Sakamoto

7 Aces 3

2 Double Faults 0

60 Service Points 66

30 First Serve In 41

24 First Serve Won 30

14 Second Serve Won 16

2 Break Points Saved 3

5 Break Points Faced 5

- Winners -

- Unforced Errors -

8.5 Average Odds 1.1

W Hard Shanghai challenger · qualification - round of 16 · 2026-09-07

vs Kaito Uesugi #1394

6-2 7-5

Ji Sung Nam Kaito Uesugi

1 Aces 2

2 Double Faults 2

62 Service Points 61

42 First Serve In 49

27 First Serve Won 33

6 Second Serve Won 5

1 Break Points Saved 3

6 Break Points Faced 5

- Winners -

- Unforced Errors -

1.4 Average Odds 2.6

W Hard Shanghai challenger · qualification - 1. round · 2026-09-06

vs Joshua Charlton #755

7-6 6-2

Ji Sung Nam Joshua Charlton

5 Aces 2

0 Double Faults 3

56 Service Points 82

37 First Serve In 54

33 First Serve Won 38

13 Second Serve Won 11

0 Break Points Saved 8

0 Break Points Faced 10

- Winners -

- Unforced Errors -

2.0 Average Odds 1.7

L Hard Zhangjiagang challenger · qualification - 1. round · 2026-08-30

vs Dominik Palan #506

6-4 6-3

Ji Sung Nam Dominik Palan

7 Aces 2

7 Double Faults 1

66 Service Points 48

43 First Serve In 26

28 First Serve Won 23

8 Second Serve Won 12

3 Break Points Saved 2

7 Break Points Faced 3

- Winners -

- Unforced Errors -

1.9 Average Odds 1.8

L Clay Prostejov challenger · qualification - 1. round · 2026-05-31

vs Jan Kumstat #679

6-4 6-4

Ji Sung Nam Jan Kumstat

6 Aces 7

5 Double Faults 1

69 Service Points 49

33 First Serve In 29

23 First Serve Won 24

15 Second Serve Won 14

7 Break Points Saved 2

10 Break Points Faced 3

17 Winners 29

25 Unforced Errors 22

5.5 Average Odds 1.1

L Clay Vicenza challenger · qualification - 1. round · 2026-05-24

vs Laurent Lokoli #402

7-5 6-4

Ji Sung Nam Laurent Lokoli

6 Aces 4

3 Double Faults 3

62 Service Points 64

38 First Serve In 40

29 First Serve Won 24

15 Second Serve Won 17

3 Break Points Saved 3

4 Break Points Faced 6

22 Winners 21

27 Unforced Errors 27

4.2 Average Odds 1.2

L Hard Busan CH · Q1 · 2026-04-13

vs Marat Sharipov #387

6-3 6-2

Ji Sung Nam Marat Sharipov

3 Aces 6

2 Double Faults 2

60 Service Points 52

37 First Serve In 30

24 First Serve Won 23

7 Second Serve Won 14

6 Break Points Saved 3

10 Break Points Faced 4

- Winners -

- Unforced Errors -

- Average Odds -

L Hard Miyazaki CH · R32 · 2026-03-30

vs Braden Shick #421

6-4 6-2

Ji Sung Nam Braden Shick

2 Aces 3

1 Double Faults 5

57 Service Points 65

33 First Serve In 32

14 First Serve Won 21

14 Second Serve Won 17

3 Break Points Saved 5

8 Break Points Faced 7

- Winners -

- Unforced Errors -

- Average Odds -