Jelena Ostapenko vs Dayeon Back Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
J. Ostapenko vs D. Back

Jelena Ostapenko

LAT

0

Win

Played

1

Win

Age

1.77m

Height

C. Rank

309

Best Rank

293

Total Titles

YTD Titles

$11.7M

Career Money

$4.2K

Right-handed (two-handed backhand)

Plays

Dayeon Back

KOR

0

Win

Played

1

Win

Age

1.77m

Height

C. Rank

309

Best Rank

293

Total Titles

YTD Titles

$11.7M

Career Money

$4.2K

Right-handed (two-handed backhand)

Plays

Head-to-head: Ostapenko 0 - 1 Back

They have played 3 sets in total, with Jelena Ostapenko winning 1 and Dayeon Back winning 2. The last match between Dayeon Back and Jelena Ostapenko was at the Hana Bank Korea Open - Seoul, 10-10-2023, Round: R1, Surface: Hard, with Draw getting the victory 3-6 6-1 7-6(4).

Players	Head To Head Match Wins
Ostapenko	0
Back	1

Last 1 H2H Matches:

(R1) Hana Bank Korea Open - Seoul(10-10-23)

Stats

Dayeon Back

Jelena Ostapenko

J. Ostapenko vs D. Back H2H Profile

J. Ostapenko	Stats	D. Back
$11,743,067	Career Prize Money	$4,220
61.23% (409-259)	Career Total W/L	68.15% (199-93)
0	Hard	1
16	Titles	9
0	Total H2H Matches	1
47.37% (18-20)	YTD Win/Loss	50.00% (3-3)
1	YTD Titles	0

J. Ostapenko vs D. Back Match Preview:

Second serve performance recent form: In recent form (last 6 months), Jelena Ostapenko has won 37.41% of points on their second serve, while Dayeon Back has won 37.89%. There is a high correlation between this stat and match prediction accuracy.
Return game stats recent form: Return stats show Jelena Ostapenko, in recent form, has won 50.34% of their opponent's second serve points, while Dayeon Back has won 53.31%. The same stats for first serve returns are 31.73% and 34.77% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Jelena Ostapenko has saved 38.89% of breakpoints in recent form, whereas Dayeon Back has saved 43.26% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Jelena Ostapenko has won 47.37% of matches played (W/L 18/20), with Dayeon Back winning 64.86% (W/L 48/26) that gives us an overall head-to head prediction overview.
Best surface: Jelena Ostapenko has their best career surface win % on Grass, winning 68% (W/L 54/26), and worse career win % on Hard, winning 54% (W/L 145/125). Dayeon Back has their best career surface win % on Hard, winning 68% (W/L 179/81), and worse career win % on I.hard, winning 50% (W/L 3/3).
Player level: In the last year, Jelena Ostapenko has played most of their matches on the Masters series, winning 41.18% of matches (W/L 7/10), 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 Jelena Ostapenko winning 0 times and Dayeon Back being victorious 1 times. They have played 3 sets in total, with Jelena Ostapenko winning 1 and Dayeon Back winning 2.
The last match between Jelena Ostapenko and Dayeon Back was at the Hana Bank Korea Open - Seoul, 10-10-2023, Round: R1, Surface: Hard, with Draw getting the victory 3-6 6-1 7-6(4).
Head to head match duration: In past head to head matches, the average match time between these players has been 2:13:53.
Opponent quality stats: Over the last 12 months, Jelena Ostapenko has played against opponents with an average rank of 63.39 while Dayeon Back has played against players with an average rank of 442.66.
Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Jelena Ostapenko has won 64% 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, Jelena Ostapenko has converted 56.14% of breakpoint opportunities, and Dayeon Back has converted 39.22% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.

Jelena Ostapenko vs Dayeon Back Editorial Preview By TennisTipster88.

J. Ostapenko vs D. Back H2H Stats Used In Our Predictions

J. Ostapenko	Stats	D. Back
0	H2H Matches Won	1
1	Sets Won	2
13	Games Won	16
1	Aces (Total)	2
9	Total Double Faults	6
2:13:53	Average Match Time	2:13:53
54% (54/100)	1st Serve %	56% (58/104)
69% (37/54)	1st Serve Win %	62% (36/58)
33% (15/46)	2nd Serve Win %	46% (21/46)
36% (5/14)	Break Pts Won %	55% (6/11)
45% (47/104)	Return Points Win %	48% (48/100)
0% (0/1)	Best‑of‑3 Win %	100% (1/1)
0% (0/1)	Deciding Set Win %	100% (1/1)
0% (0/1)	1st Set Won, Won Match	0% (0/0)
100% (1/1)	1st Set Won, Lost Match	0% (0/0)
0% (0/0)	1st Set Lost, Won Match	100% (1/1)

Recent Performance Stats

J. Ostapenko Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Wuhan Open - Wuhan - 06-10-2025
R1 Sorana CirsteaS. Cirstea	L	6-0 2-1 ret.	Stats
China Open - Beijing - 22-09-2025
R2 Priscilla HonP. Hon	L	6-3 6-2	Stats
Guadalajara Open Akron - Guadalajara - 08-09-2025
R2 Marina StakusicM. Stakusic	L	6-4 6-7(6) 6-2	Stats
U.S. Open - New York - 25-08-2025
R2 Taylor TownsendT. Townsend	L	7-5 6-1	Stats
R1 Xiyu WangX. Wang	W	6-4 6-3	Stats

View All

D. Back Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
W75 Playford - 24-11-2025
R1 Sijia WeiS. Wei	L	6-4 6-0	Stats
W75 Sydney - 17-11-2025
R2 Talia GibsonT. Gibson	L	6-3 6-2	Stats
R1 Laquisa KhanL. Khan	W	6-4 6-2	Stats
W50 Brisbane - 10-11-2025
R1 Gabriella Da Silva FickG. Da	L	6-2 2-6 6-4	Stats
W35 Hamamatsu - 03-11-2025
R1 Kisa YoshiokaK. Yoshioka	L	3-6 6-4 7-5	Stats

View All

J. Ostapenko vs D. Back Stats Breakdown Vs All H2H Opponents

J. Ostapenko	Stats	D. Back
61.23% (409/259)	YTD Win/Loss	68.15% (199/93)
57.77% (900/658)	Sets Win/Loss	64.75% (428/233)
53.38% (7632/6665)	Games Win/Loss	57.20% (3310/2477)
53.70% (145/125)	Hard Win/Loss	68.85% (179/81)
66.86% (117/58)	Clay Win/Loss	61.54% (8/5)
65.03% (93/50)	Indoor Hard W/L	63.16% (12/7)
67.50% (54/26)	Grass Win/Loss	0% (0/0)
0.24	Aces Per Game	0.05
1647	Aces Total	152
0.43	Double Faults Per Game	0.15
3031	Total Double Faults	433
1:13:48	Average Match Time	1st Match
377.84	Average Opponent Rank	461.08
56% (20945/37471)	1st Serve %	68% (11273/16536)
65% (13671/20945)	1st Serve Win %	60% (6778/11273)
43% (7174/16512)	2nd Serve Win %	46% (2408/5263)
49% (2313/4708)	Break Points Won % (Total)	50% (1207/2392)
46% (17077/37028)	Return Points Win %	50% (8223/16470)
61.39% (62/39)	Slam W/L	0% (0/0)
52.38% (88/80)	Masters W/L	0% (0/0)
58.06% (18/13)	Cups W/L	62.50% (5/3)
60.17% (139/92)	Main Tour W/L	42.86% (3/4)
66.25% (53/27)	Challenger W/L	62.60% (82/49)
85.96% (49/8)	Futures W/L	74.66% (109/37)
61% (399/653)	Best of 3 Sets Win %	68% (194/286)
40% (2/5)	Best of 5 Sets Win %	0% (0/0)
57% (76/134)	Tiebreaks Win % (Total)	55% (30/55)
61% (139/227)	Deciding Set Win %	57% (47/82)
86% (387/333)	1st Set Won, Won Match	88% (188/165)
14% (387/54)	1st Set Won, Lost Match	12% (188/23)
26% (281/74)	1st Set Lost, Won Match	32% (104/33)