Ji-Hee Choi vs Dayeon Back Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
J. Choi vs D. Back

Ji-Hee Choi

KOR

1

Win

Played

2

Win

Age

Height

863

C. Rank

302

339

Best Rank

293

Total Titles

Ytd Titles

$1.4K

Career Money

$4.2K

Plays

Dayeon Back

KOR

1

Win

Played

2

Win

Age

Height

863

C. Rank

302

339

Best Rank

293

Total Titles

Ytd Titles

$1.4K

Career Money

$4.2K

Plays

Head-To-Head: Choi 1 - 2 Back

They have played 8 sets in total, with Ji-Hee Choi winning 3 and Dayeon Back winning 5. The last match between Dayeon Back and Ji-Hee Choi was at the W15 Sapporo, 08-08-2023, Round: R1, Surface: Hard, with Dayeon Back getting the victory 6-3 7-5.

Players	Head To Head Match Wins
Choi	1
Back	2

Last H2H Matches:

(R1) W15 Sapporo(08-08-23)

Stats

Dayeon Back

Ji-Hee Choi

(R1) W15 Monastir(09-01-21)

Stats

Dayeon Back

Ji-Hee Choi

(F) W15 Yeongwol(09-07-19)

Stats

Ji-Hee Choi

Dayeon Back

J. Choi vs D. Back H2H Profile

J. Choi	Stats	D. Back
$1,448	Career Prize Money	$4,220
52.53% (228-206)	Career Total W/L	68.71% (191-87)
1	Hard	2
3	Titles	9
1	Total H2H Matches	2
0% (0-0)	YTD Win/Loss	50.00% (3-3)

J. Choi vs D. Back Match Preview

Second serve performance recent form: In recent form (last 6 months), Ji-Hee Choi has won 0% of points on their second serve, while Dayeon Back has won 37.07%. There is a high correlation between this stat and match prediction accuracy.
Return game stats recent form: Return stats show Ji-Hee Choi, in recent form, has won 0% of their opponent's second serve points, while Dayeon Back has won 54.18%. The same stats for first serve returns are 0% and 35.54% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Ji-Hee Choi has saved 0% of breakpoints in recent form, whereas Dayeon Back has saved 46.40% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Ji-Hee Choi has won 50.00% of matches played (W/L 1/ 1), with Dayeon Back winning 69.23% (W/L 1/ 24) that gives us an overall head-to head prediction overview.
Best surface: Ji-Hee Choi has their best career surface win % on Hard, winning 54% (W/L 216/ 181), and worse career win % on Grass, winning 0% (W/L 0/ 2). Dayeon Back has their best career surface win % on Hard, winning 69% (W/L 175/ 77), and worse career win % on I.hard, winning 50% (W/L 3/ 3).
Player level: In the last year, Ji-Hee Choi has played most of their matches on the Futures/Satellites/ITF tournaments $10K, winning 50.00% of matches (W/L 1/ 1), where as Dayeon Back has played most of their matches on the Challengers/ITF tournaments > $10K, winning 64.15% of matches (W/L 34/ 19). 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 Ji-Hee Choi winning 1 times and Dayeon Back being victorious 2 times. They have played 8 sets in total, with Ji-Hee Choi winning 3 and Dayeon Back winning 5. The last match between Dayeon Back and Ji-Hee Choi was at the W15 Sapporo, 08-08-2023, Round: R1, Surface: Hard, with Dayeon Back getting the victory 6-3 7-5.
Head to head match duration: In past head to head matches, the average match time between these players has been 1:27:0.
Deciding set H2H prediction: Ji-Hee Choi and Dayeon Back have played a deciding set 2 times, with Ji-Hee Choi winning 1 times and Dayeon Back 1 times. Very useful for predicting the outcome if this match goes the distance.
Opponent quality stats: Over the last 12 months, Ji-Hee Choi has played against opponents with an average rank of 424.5 while Dayeon Back has played against players with an average rank of 474.06.
Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Ji-Hee Choi has won 0% of deciding sets over the last 12 months, while Dayeon Back has won 64% in all matches played on tour.
Break point conversion: In recent form, Ji-Hee Choi has converted 0% of breakpoint opportunities, and Dayeon Back has converted 36.02% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.

Ji-Hee Choi vs Dayeon Back Editorial Preview By TennisTipster88.

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

J. Choi	Stats	D. Back
1	H2H Matches Won	2
3	Sets Won	5
35	Games Won	41
4	Aces (Total)	0
6	Total Double Faults	2
1:27:0	Avg. Match Time	1:27:0
67% (107/160)	1st Serve %	74% (107/144)
54% (58/107)	1st Serve Win %	56% (60/107)
34% (18/53)	2nd Serve Win %	59% (22/37)
41% (9/22)	Break Pts Won %	45% (14/31)
43% (62/144)	Return Pts Won %	53% (84/160)
33% (1/3)	Best‑of‑3 Win %	67% (2/3)
50% (1/2)	Deciding Set Win %	50% (1/2)
0% (0/1)	1st Set Won → Match Won	50% (1/2)
100% (1/1)	1st Set Won → Match Lost	50% (1/2)
50% (1/2)	1st Set Lost → Match Won	100% (1/1)

Recent Performance Stats

J. Choi Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
W15 Yeongwol - 30-09-2024
Q2 Pei-Chi LeeP. Lee	L	6-4 6-7(2) 10-4	Stats
Q1 Yejin YangY. Yang	W	6-0 6-0	Stats
W35 Changwon - 27-05-2024
Q2 Vaidehi ChaudhariV. Chaudhari	L	6-2 6-1	Stats
Q1 Annette RobertsonA. Robertson	W	6-0 6-0	Stats
W50 Goyang - 20-05-2024
Q1 Mayuka AikawaM. Aikawa	L	3-6 7-6(3) 6-1	Stats

View All

D. Back Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
W100 Incheon - 22-09-2025
R1 Momoko KoboriM. Kobori	L	6-0 3-6 6-3	Stats
Korea Open - Seoul - 15-09-2025
R1 Beatriz Haddad MaiaB. Haddad	L	6-4 6-3	Stats
W35 Nakhon Pathom - 01-09-2025
R2 Miho KuramochiM. Kuramochi	L	6-7(2) 6-3 7-6(7)	Stats
R1 Patcharin CheapchadejP. Cheapchadej	W	5-7 6-0 6-0	Stats
W35 Nakhon Pathom - 25-08-2025
R2 Fangran TianF. Tian	L	6-0 6-1	Stats

View All

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

J. Choi	Stats	D. Back
52.53% (228/206)	YTD Win/Loss	68.71% (191/87)
52.26% (509/465)	Sets Win/Loss	65.02% (409/220)
51.34% (4458/4226)	Games Win/Loss	57.41% (3157/2342)
54.41% (216/181)	Hard Win/Loss	69.44% (175/77)
45.45% (5/6)	Clay Win/Loss	61.54% (8/5)
29.17% (7/17)	Indoor Hard W/L	61.54% (8/5)
0.00% (0/2)	Grass Win/Loss	0% (0/0)
0.05	Aces Per Game	0.05
210	Aces Total	136
0.1	Double Faults Per Game	0.15
403	Total Double Faults	398
1st Match	Average Match Time	1:30:20
563.97	Average Opponent Rank	463.97
66% (7702/11663)	1st Serve %	69% (10705/15619)
58% (4434/7702)	1st Serve Win %	60% (6413/10705)
45% (1774/3961)	2nd Serve Win %	46% (2253/4914)
48% (741/1541)	Break Points Won % (Total)	50% (1151/2283)
47% (5406/11562)	Return Points Win %	50% (7815/15568)
50.00% (1/1)	Cups W/L	62.50% (5/3)
9.09% (1/10)	Main Tour W/L	42.86% (3/4)
46.98% (109/123)	Challenger W/L	63.25% (74/43)
61.90% (117/72)	Futures W/L	74.66% (109/37)
52% (225/429)	Best of 3 Sets Win %	68% (186/272)
0% (0/1)	Best of 5 Sets Win %	0% (0/0)
53% (34/64)	Tiebreaks Win % (Total)	53% (28/53)
49% (55/112)	Deciding Set Win %	59% (46/78)
87% (232/201)	1st Set Won, Won Match	88% (178/157)
13% (232/31)	1st Set Won, Lost Match	12% (178/21)
13% (200/25)	1st Set Lost, Won Match	33% (100/33)