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

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
D. Back vs J. Choi

Dayeon Back

KOR

2

Win

Played

1

Win

Age

Height

302

C. Rank

863

293

Best Rank

339

Total Title

YTD Titles

$4.2K

Career Money

$1.4K

Plays

Ji-Hee Choi

KOR

2

Win

Played

1

Win

Age

Height

302

C. Rank

863

293

Best Rank

339

Total Title

YTD Titles

$4.2K

Career Money

$1.4K

Plays

Head-to-head: Back 2 - 1 Choi

They have played 8 sets in total, with Dayeon Back winning 5 and Ji-Hee Choi winning 3. 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
Back	2
Choi	1

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

D. Back vs J. Choi H2H Profile

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

D. Back vs J. Choi Match Preview:

Second serve performance recent form: In recent form (last 6 months), Dayeon Back has won 37.07% of points on their second serve, while Ji-Hee Choi has won 0%. There is a high correlation between this stat and match prediction accuracy.
Return game stats recent form: Return stats show Dayeon Back, in recent form, has won 54.18% of their opponent's second serve points, while Ji-Hee Choi has won 0%. The same stats for first serve returns are 35.54% and 0% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Dayeon Back has saved 46.40% of breakpoints in recent form, whereas Ji-Hee Choi has saved 0% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Dayeon Back has won 66.67% of matches played (W/L 48/24), with Ji-Hee Choi winning 0% (W/L 0/0) that gives us an overall head-to head prediction overview.
Best surface: 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). Ji-Hee Choi has their best career surface win % on Hard, winning 69% (W/L 216/181), and worse career win % on Grass, winning 0% (W/L 0/2).
Player level: In the last year, Dayeon Back has played most of their matches on the Challengers/ITF tournaments > $10K, winning 64.15% of matches (W/L 34/19), where as Ji-Hee Choi has played most of their matches on the N/A, winning 0% of matches (W/L 0/0). 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 Dayeon Back winning 2 times and Ji-Hee Choi being victorious 1 times. They have played 8 sets in total, with Dayeon Back winning 5 and Ji-Hee Choi winning 3.
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: Dayeon Back and Ji-Hee Choi have played a deciding set 2 times, with Dayeon Back winning 1 times and Ji-Hee Choi 1 times. Very useful for predicting the outcome if this match goes the distance.
Opponent quality stats: Over the last 12 months, Dayeon Back has played against opponents with an average rank of 471.99 while Ji-Hee Choi has played against players with an average rank of 0.
Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Dayeon Back has won 63% of deciding sets over the last 12 months, while Ji-Hee Choi has won 0% in all matches played on tour.
Break point conversion: In recent form, Dayeon Back has converted 36.02% of breakpoint opportunities, and Ji-Hee Choi has converted 0% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.

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

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

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

Recent Performance Stats

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 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 vs J. Choi Stats Breakdown Vs All H2H Opponents

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