Su Jeong Jang vs Dayeon Back Head-to-Head Stats, Results & Performance Comparison
Wojtek Kolan
HEAD TO HEAD
S. Jeong Jang vs D. Back
Su Jeong Jang
KOR
l
l
w
w
l
w
w
l
w
l
1
Win
1
Played
0
Win
30
Age
23
-
Height
-
617
C. Rank
305
114
Best Rank
293
0
Total Titles
0
0
YTD Titles
0
$356.0K
Career Money
$4.2K
Right-Handed
Plays
-
Dayeon Back
KOR
w
w
w
w
l
l
l
w
l
l
1
Win
1
Played
0
Win
30
Age
23
-
Height
-
617
C. Rank
305
114
Best Rank
293
0
Total Titles
0
0
YTD Titles
0
$356.0K
Career Money
$4.2K
Right-Handed
Plays
-
Head-to-head: Jang 1 - 0 Back
They have played 3 sets in total, with Su Jeong Jang winning 2 and Dayeon Back winning 1. The last match between Su Jeong Jang and Dayeon Back was at the Hana Bank Korea Open - Seoul, 20-12-2021, Round: R1, Surface: I.hard, with Su Jeong Jang getting the victory 3-6 6-3 6-3.
| Players | Head To Head Match Wins |
|---|---|
| Jang | 1 |
| Back | 0 |
Last 1 H2H Matches:
(R1) Hana Bank Korea Open - Seoul(12-20-21)
Su Jeong Jang
3
6
6
Dayeon Back
6
3
3
S. J. Jang vs D. Back H2H Profile
| Stats | ||
|---|---|---|
| $355,985 | Career Prize Money | $4,220 |
| 58.92% (446-311) | Career Total W/L | 68.15% (199-93) |
| 1 | Indoor | 0 |
| 13 | Titles | 9 |
| 1 | Total H2H Matches | 0 |
| 0% (0-0) | YTD Win/Loss | 50.00% (3-3) |
S. J. Jang vs D. Back Match Preview:
- Second serve performance recent form: In recent form (last 6 months), Su Jeong Jang has won 40.12% of points on their second serve, while Dayeon Back has won 38.40%. There is a high correlation between this stat and match prediction accuracy.
- Return game stats recent form: Return stats show Su Jeong Jang, in recent form, has won 51.05% of their opponent's second serve points, while Dayeon Back has won 52.74%. The same stats for first serve returns are 33.67% and 35.12% respectively and this has a high correlation to pick who is favored in this H2H matchup.
- Under pressure analysis: Su Jeong Jang has saved 45.18% of breakpoints in recent form, whereas Dayeon Back has saved 43.48% which is a useful statistic for in-game betting predictions.
- Performance overview: Over the last year Su Jeong Jang has won 44.12% of matches played (W/L 15/19), with Dayeon Back winning 64.86% (W/L 48/26) that gives us an overall head-to head prediction overview.
- Best surface: Su Jeong Jang has their best career surface win % on Clay, winning 67% (W/L 78/39), and worse career win % on Grass, winning 56% (W/L 18/14). Dayeon Back has their best career surface win % on Hard, winning 67% (W/L 179/81), and worse career win % on I.hard, winning 50% (W/L 3/3).
- Player level: In the last year, Su Jeong Jang has played most of their matches on the Challengers/ITF tournaments > $10K, winning 45.45% of matches (W/L 15/18), where as Dayeon Back has played most of their matches on the Challengers/ITF tournaments > $10K, winning 62.07% of matches (W/L 36/22). 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 1 times before with Su Jeong Jang winning 1 times and Dayeon Back being victorious 0 times. They have played 3 sets in total, with Su Jeong Jang winning 2 and Dayeon Back winning 1.
- The last match between Su Jeong Jang and Dayeon Back was at the Hana Bank Korea Open - Seoul, 20-12-2021, Round: R1, Surface: I.hard, with Su Jeong Jang getting the victory 3-6 6-3 6-3.
- Head to head match duration: In past head to head matches, the average match time between these players has been 2:43:0.
- Opponent quality stats: Over the last 12 months, Su Jeong Jang has played against opponents with an average rank of 365.5 while Dayeon Back has played against players with an average rank of 440.85.
- Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Su Jeong Jang has won 36% of deciding sets over the last 12 months, while Dayeon Back has won 60% in all matches played on tour.
- Break point conversion: In recent form, Su Jeong Jang has converted 40.71% of breakpoint opportunities, and Dayeon Back has converted 39.01% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.
Su Jeong Jang vs Dayeon Back Editorial Preview By TennisTipster88.
S. J. Jang vs D. Back H2H Stats Used In Our Predictions
| Stats | ||
|---|---|---|
| 1 | H2H Matches Won | 0 |
| 2 | Sets Won | 1 |
| 15 | Games Won | 12 |
| 1 | Aces (Total) | 0 |
| 3 | Total Double Faults | 1 |
| 2:43:0 | Average Match Time | 2:43:0 |
| 72% (61/85) | 1st Serve % | 73% (82/113) |
| 51% (31/61) | 1st Serve Win % | 45% (37/82) |
| 38% (9/24) | 2nd Serve Win % | 45% (14/31) |
| 53% (9/17) | Break Pts Won % | 58% (7/12) |
| 55% (62/113) | Return Points Win % | 53% (45/85) |
| 100% (1/1) | Best‑of‑3 Win % | 0% (0/1) |
| 100% (1/1) | Deciding Set Win % | 0% (0/1) |
| 0% (0/0) | 1st Set Won, Won Match | 0% (0/1) |
| 0% (0/0) | 1st Set Won, Lost Match | 100% (1/1) |
| 100% (1/1) | 1st Set Lost, Won Match | 0% (0/0) |
Recent Performance Stats
2nd Serve Win %: Jang 45%, Back 43%.
Opp 2nd Serve Pts Won: Jang 54%, Back 58%.
Break Points Saved %: Jang 50%, Back 53%.
S. J. Jang Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
 W50 Yokohama - 24-11-2025 | ||||
Q3  Rinko MatsudaR. Matsuda | L | 2-6 6-2 6-4 | ||
Q1 Dabin KimD. Kim | W | 6-3 6-1 | ||
| W75 Sydney - 17-11-2025 | ||||
R1 Miho KuramochiM. Kuramochi | L | 6-7(5) 6-0 6-1 | ||
Q3  Rianna AlameR. Alame | W | 6-4 6-2 | ||
Q1 Gurmanat Kaur SandhuG. Kaur | W | 7-6(2) 6-3 | ||
D. Back Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
| W75 Playford - 24-11-2025 | ||||
R1  Sijia WeiS. Wei | L | 6-4 6-0 | ||
| W75 Sydney - 17-11-2025 | ||||
R2 Talia GibsonT. Gibson | L | 6-3 6-2 | ||
R1 Laquisa KhanL. Khan | W | 6-4 6-2 | ||
| W50 Brisbane - 10-11-2025 | ||||
R1 Gabriella Da Silva FickG. Da | L | 6-2 2-6 6-4 | ||
 W35 Hamamatsu - 03-11-2025 | ||||
R1 Kisa YoshiokaK. Yoshioka | L | 3-6 6-4 7-5 | ||
S. J. Jang vs D. Back Stats Breakdown Vs All H2H Opponents
| Stats | ||
|---|---|---|
| 58.92% (446/311) | YTD Win/Loss | 68.15% (199/93) |
| 57.10% (997/749) | Sets Win/Loss | 64.75% (428/233) |
| 53.44% (8494/7400) | Games Win/Loss | 57.20% (3310/2477) |
| 57.51% (314/232) | Hard Win/Loss | 68.85% (179/81) |
| 66.67% (78/39) | Clay Win/Loss | 61.54% (8/5) |
| 58.06% (36/26) | Indoor Hard W/L | 63.16% (12/7) |
| 56.25% (18/14) | Grass Win/Loss | 0% (0/0) |
| 0.09 | Aces Per Game | 0.05 |
| 660 | Aces Total | 152 |
| 0.19 | Double Faults Per Game | 0.15 |
| 1506 | Total Double Faults | 433 |
| 1:14:9 | Average Match Time | 1st Match |
| 557.82 | Average Opponent Rank | 459.82 |
| 69% (23147/33509) | 1st Serve % | 68% (11273/16536) |
| 61% (14114/23147) | 1st Serve Win % | 60% (6778/11273) |
| 45% (4632/10362) | 2nd Serve Win % | 46% (2408/5263) |
| 49% (2179/4486) | Break Points Won % (Total) | 50% (1207/2392) |
| 47% (16165/34519) | Return Points Win % | 50% (8223/16470) |
| 41.67% (15/21) | Slam W/L | 0% (0/0) |
| 50.00% (2/2) | Masters W/L | 0% (0/0) |
| 64.00% (16/9) | Cups W/L | 62.50% (5/3) |
| 36.54% (19/33) | Main Tour W/L | 42.86% (3/4) |
| 59.74% (316/213) | Challenger W/L | 62.60% (82/49) |
| 70.27% (78/33) | Futures W/L | 74.66% (109/37) |
| 59% (441/750) | Best of 3 Sets Win % | 68% (194/286) |
| 67% (2/3) | Best of 5 Sets Win % | 0% (0/0) |
| 55% (74/135) | Tiebreaks Win % (Total) | 55% (30/55) |
| 54% (125/233) | Deciding Set Win % | 57% (47/82) |
| 88% (419/367) | 1st Set Won, Won Match | 88% (188/165) |
| 12% (419/52) | 1st Set Won, Lost Match | 12% (188/23) |
| 23% (338/78) | 1st Set Lost, Won Match | 32% (104/33) |
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