Jumpei Yamasaki vs Ji Sung Nam Head-to-Head Stats, Results & Performance Comparison
Wojtek Kolan
HEAD TO HEAD
J. Yamasaki vs J. Sung Nam
Jumpei Yamasaki
JPN
w
l
w
w
w
w
l
w
w
l
1
Win
3
Played
2
Win
28
Age
32
5'11" (180 cm)
Height
6'0" (183 cm)
896
C. Rank
692
446
Best Rank
236
0
Total Titles
0
0
YTD Titles
0
$0
Career Money
$1.4K
Right-Handed
Plays
Right-Handed
Ji Sung Nam
KOR
w
l
w
w
l
w
w
l
w
l
1
Win
3
Played
2
Win
28
Age
32
5'11" (180 cm)
Height
6'0" (183 cm)
896
C. Rank
692
446
Best Rank
236
0
Total Titles
0
0
YTD Titles
0
$0
Career Money
$1.4K
Right-Handed
Plays
Right-Handed
Head-to-head: Yamasaki 1 - 2 Nam
They have played 7 sets in total, with Jumpei Yamasaki winning 2 and Ji Sung Nam winning 5. The last match between Ji Sung Nam and Jumpei Yamasaki was at the Yokkaichi Challenger, 06-08-2019, Round: R2, Surface: Hard, with Ji Sung Nam getting the victory 6-3 6-2.
| Players | Head To Head Match Wins |
|---|---|
| Yamasaki | 1 |
| Nam | 2 |
Last 3 H2H Matches:
(R2) Yokkaichi Challenger(08-06-19)
Ji Sung Nam
6
6
Jumpei Yamasaki
3
2
(R1) M15 Kashiwa(04-03-19)
Jumpei Yamasaki
6
2
7
Ji Sung Nam
3
6
6
(SF) M15 Nishi-Tama(03-09-19)
Ji Sung Nam
6
6
Jumpei Yamasaki
2
1
J. Yamasaki vs J. S. Nam H2H Profile
| Stats | ||
|---|---|---|
| $0 | Career Prize Money | $1,445 |
| 57.92% (267-194) | Career Total W/L | 56.34% (311-241) |
| 1 | Hard | 2 |
| 3 | Titles | 6 |
| 1 | Total H2H Matches | 2 |
| 0% (0-0) | YTD Win/Loss | 0% (0-0) |
J. Yamasaki vs J. S. Nam Match Preview:
- Second serve performance recent form: In recent form (last 6 months), Jumpei Yamasaki has won 42.92% of points on their second serve, while Ji Sung Nam has won 41.73%. There is a high correlation between this stat and match prediction accuracy.
- Return game stats recent form: Return stats show Jumpei Yamasaki, in recent form, has won 49.11% of their opponent's second serve points, while Ji Sung Nam has won 46.61%. The same stats for first serve returns are 26.86% and 27.82% respectively and this has a high correlation to pick who is favored in this H2H matchup.
- Under pressure analysis: Jumpei Yamasaki has saved 48.70% of breakpoints in recent form, whereas Ji Sung Nam has saved 55.60% which is a useful statistic for in-game betting predictions.
- Performance overview: Over the last year Jumpei Yamasaki has won 63.46% of matches played (W/L 33/19), with Ji Sung Nam winning 57.50% (W/L 23/17) that gives us an overall head-to head prediction overview.
- Best surface: Jumpei Yamasaki has their best career surface win % on I.hard, winning 60% (W/L 18/12), and worse career win % on Clay, winning 55% (W/L 31/25). Ji Sung Nam has their best career surface win % on Hard, winning 60% (W/L 257/187), and worse career win % on Grass, winning 33% (W/L 1/2).
- Player level: In the last year, Jumpei Yamasaki has played most of their matches on the Futures/Satellites/ITF tournaments $10K, winning 63.27% of matches (W/L 31/18), where as Ji Sung Nam has played most of their matches on the Futures/Satellites/ITF tournaments $10K, winning 69.57% of matches (W/L 16/7). When comparing stats between players to predict the favorite, it is of course all relative to the event level they have been playing at.
- Direct H2H matches: They have played 3 times before with Jumpei Yamasaki winning 1 times and Ji Sung Nam being victorious 2 times. They have played 7 sets in total, with Jumpei Yamasaki winning 2 and Ji Sung Nam winning 5.
- The last match between Jumpei Yamasaki and Ji Sung Nam was at the Yokkaichi Challenger, 06-08-2019, Round: R2, Surface: Hard, with Ji Sung Nam getting the victory 6-3 6-2.
- Head to head match duration: In past head to head matches, the average match time between these players has been 1:32:29.
- Opponent quality stats: Over the last 12 months, Jumpei Yamasaki has played against opponents with an average rank of 416.31 while Ji Sung Nam has played against players with an average rank of 387.95.
- Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Jumpei Yamasaki has won 30% of deciding sets over the last 12 months, while Ji Sung Nam has won 47% in all matches played on tour.
- Break point conversion: In recent form, Jumpei Yamasaki has converted 28.57% of breakpoint opportunities, and Ji Sung Nam has converted 41.27% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.
Jumpei Yamasaki vs Ji Sung Nam Editorial Preview By TennisTipster88.
J. Yamasaki vs J. S. Nam H2H Stats Used In Our Predictions
| Stats | ||
|---|---|---|
| 1 | H2H Matches Won | 2 |
| 2 | Sets Won | 5 |
| 23 | Games Won | 39 |
| 5 | Aces (Total) | 10 |
| 8 | Total Double Faults | 7 |
| 1:32:29 | Average Match Time | 1:32:29 |
| 59% (127/217) | 1st Serve % | 60% (111/185) |
| 61% (78/127) | 1st Serve Win % | 70% (78/111) |
| 39% (35/90) | 2nd Serve Win % | 49% (36/74) |
| 47% (7/15) | Break Pts Won % | 39% (15/38) |
| 38% (71/185) | Return Points Win % | 48% (104/217) |
| 33% (1/3) | Best‑of‑3 Win % | 67% (2/3) |
| 100% (1/1) | Deciding Set Win % | 0% (0/1) |
| 100% (1/1) | 1st Set Won, Won Match | 100% (2/2) |
| 0% (0/1) | 1st Set Won, Lost Match | 0% (0/2) |
| 0% (0/2) | 1st Set Lost, Won Match | 0% (0/1) |
Recent Performance Stats
2nd Serve Win %: Yamasaki 51%, Nam 50%.
Opp 2nd Serve Pts Won: Yamasaki 54%, Nam 57%.
Break Points Saved %: Yamasaki 57%, Nam 53%.
J. Yamasaki Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
| Yokohama Challenger - 17-11-2025 | ||||
R1 Yuki MochizukiY. Mochizuki | L | 6-4 7-6(5) | ||
Q3 Naoki NakagawaN. Nakagawa | W | 6-3 6-1 | ||
Q1 Uisung ParkU. Park | W | 6-4 ret. | ||
| M25 Takasaki - 15-09-2025 | ||||
QF Takuya KumasakaT. Kumasaka | L | 6-7(6) 6-0 6-3 | ||
R2 Taiyo YamanakaT. Yamanaka | W | 6-2 6-3 | ||
J. S. Nam Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
| Yokohama Challenger - 17-11-2025 | ||||
Q3  Igor Ribeiro MarcondesI. Ribeiro | L | 6-4 6-4 | ||
Q1  Nathan TrouveN. Trouve | W | 6-0 6-1 | ||
 Kobe Challenger - 10-11-2025 | ||||
R1  Hynek BartonH. Barton | L | 6-7(8) 6-4 7-6(6) | ||
Q3  Duje AjdukovicD. Ajdukovic | W | 6-4 5-7 6-4 | ||
Q1  Tsung-Hao HuangT. Huang | W | 6-2 6-3 | ||
J. Yamasaki vs J. S. Nam Stats Breakdown Vs All H2H Opponents
| Stats | ||
|---|---|---|
| 57.92% (267/194) | YTD Win/Loss | 56.34% (311/241) |
| 56.08% (581/455) | Sets Win/Loss | 55.80% (698/553) |
| 52.77% (5039/4510) | Games Win/Loss | 52.37% (6070/5520) |
| 58.24% (212/152) | Hard Win/Loss | 57.88% (257/187) |
| 55.36% (31/25) | Clay Win/Loss | 50.00% (28/28) |
| 58.54% (24/17) | Indoor Hard W/L | 51.02% (25/24) |
| 0% (0/0) | Grass Win/Loss | 33.33% (1/2) |
| 0.22 | Aces Per Game | 0.18 |
| 1018 | Aces Total | 1047 |
| 0.1 | Double Faults Per Game | 0.17 |
| 451 | Total Double Faults | 982 |
| 1:21:6 | Average Match Time | 1st Match |
| 501.15 | Average Opponent Rank | 577.9 |
| 64% (14608/22757) | 1st Serve % | 65% (14629/22558) |
| 66% (9578/14608) | 1st Serve Win % | 68% (9882/14629) |
| 50% (4040/8149) | 2nd Serve Win % | 49% (3878/7929) |
| 44% (1037/2340) | Break Points Won % (Total) | 44% (1184/2688) |
| 41% (9507/23232) | Return Points Win % | 43% (10166/23771) |
| 0% (0/0) | Slam W/L | 0.00% (0/1) |
| 0% (0/0) | Cups W/L | 50.00% (3/3) |
| 0% (0/0) | Main Tour W/L | 20.00% (1/4) |
| 38.46% (15/24) | Challenger W/L | 50.00% (112/112) |
| 59.72% (252/170) | Futures W/L | 61.71% (195/121) |
| 57% (256/448) | Best of 3 Sets Win % | 56% (301/536) |
| 100% (6/6) | Best of 5 Sets Win % | 100% (4/4) |
| 51% (56/109) | Tiebreaks Win % (Total) | 53% (77/144) |
| 54% (62/115) | Deciding Set Win % | 47% (74/156) |
| 88% (261/229) | 1st Set Won, Won Match | 86% (311/266) |
| 12% (261/32) | 1st Set Won, Lost Match | 14% (311/44) |
| 19% (199/37) | 1st Set Lost, Won Match | 19% (240/45) |
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