Dayeon Back vs Sumin Kim Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
D. Back vs S. Kim

Dayeon Back

KOR

1

Win

Played

0

Win

Age

Height

308

C. Rank

293

Best Rank

Total Titles

YTD Titles

$4.2K

Career Money

Plays

Sumin Kim

KOR

1

Win

Played

0

Win

Age

Height

308

C. Rank

293

Best Rank

Total Titles

YTD Titles

$4.2K

Career Money

Plays

Head-to-head: Back 1 - 0 Kim

They have played 2 sets in total, with Dayeon Back winning 2 and Sumin Kim winning 0. The last match between Dayeon Back and Sumin Kim was at the W25 Changwon, 01-06-2022, Round: R1, Surface: Hard, with Dayeon Back getting the victory 6-1 6-0.

Players	Head To Head Match Wins
Back	1
Kim	0

Last 1 H2H Matches:

(R1) W25 Changwon(06-01-22)

Stats

Dayeon Back

Sumin Kim

D. Back vs S. Kim H2H Profile

D. Back	Stats	S. Kim
$4,220	Career Prize Money	$0
68.51% (198-91)	Career Total W/L	42.86% (24-32)
1	Hard	0
9	Titles	0
1	Total H2H Matches	0
50.00% (3-3)	YTD Win/Loss	0% (0-0)

D. Back vs S. Kim Match Preview:

Second serve performance recent form: In recent form (last 6 months), Dayeon Back has won 38.26% of points on their second serve, while Sumin Kim 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 53.97% of their opponent's second serve points, while Sumin Kim has won 0%. The same stats for first serve returns are 34.98% 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 43.96% of breakpoints in recent form, whereas Sumin Kim has saved 0% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Dayeon Back has won 65.75% of matches played (W/L 48/25), with Sumin Kim 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 178/79), and worse career win % on I.hard, winning 50% (W/L 3/3). Sumin Kim has their best career surface win % on Hard, winning 69% (W/L 24/31), and worse career win % on I.hard, winning 0% (W/L 0/1).
Player level: In the last year, Dayeon Back has played most of their matches on the Challengers/ITF tournaments > $10K, winning 63.16% of matches (W/L 36/21), where as Sumin Kim 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 1 times before with Dayeon Back winning 1 times and Sumin Kim being victorious 0 times. They have played 2 sets in total, with Dayeon Back winning 2 and Sumin Kim winning 0.
The last match between Dayeon Back and Sumin Kim was at the W25 Changwon, 01-06-2022, Round: R1, Surface: Hard, with Dayeon Back getting the victory 6-1 6-0.
Head to head match duration: In past head to head matches, the average match time between these players has been 1:8:0.
Opponent quality stats: Over the last 12 months, Dayeon Back has played against opponents with an average rank of 445.12 while Sumin Kim 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 59% of deciding sets over the last 12 months, while Sumin Kim has won 0% in all matches played on tour.
Break point conversion: In recent form, Dayeon Back has converted 38.54% of breakpoint opportunities, and Sumin Kim 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 Sumin Kim Editorial Preview By TennisTipster88.

D. Back vs S. Kim H2H Stats Used In Our Predictions

D. Back	Stats	S. Kim
1	H2H Matches Won	0
2	Sets Won	0
12	Games Won	1
1	Total Double Faults	3
1:8:0	Average Match Time	1:8:0
62% (23/37)	1st Serve %	57% (27/47)
78% (18/23)	1st Serve Win %	41% (11/27)
50% (7/14)	2nd Serve Win %	25% (5/20)
67% (6/9)	Break Pts Won %	50% (1/2)
66% (31/47)	Return Points Win %	32% (12/37)
100% (1/1)	Best‑of‑3 Win %	0% (0/1)
100% (1/1)	1st Set Won, Won Match	0% (0/0)
0% (0/1)	1st Set Won, Lost Match	0% (0/0)
0% (0/0)	1st Set Lost, Won Match	0% (0/1)

Recent Performance Stats

D. Back Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
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
W35 Makinohara - 27-10-2025
F Sara SaitoS. Saito	L	6-1 6-2	Stats
SF Ayano ShimizuA. Shimizu	W	7-6(2) 1-6 7-6(3)	Stats
QF Eunhye LeeE. Lee	W	6-3 6-4	Stats

View All

S. Kim Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
W35 Changwon - 12-05-2025
Q1 Nanari KatsumiN. Katsumi	L	w/o	Stats
W15 Yeongwol - 30-09-2024
QF Dabin KimD. Kim	L	6-1 6-2	Stats
R2 Elina NepliyE. Nepliy	W	3-6 6-4 6-2	Stats
R1 Yuhan LiuY. Liu	W	6-4 0-6 6-2	Stats
W15 Yeongwol - 23-09-2024
R1 Boyoung JeongB. Jeong	L	6-2 6-2	Stats

View All

D. Back vs S. Kim Stats Breakdown Vs All H2H Opponents

D. Back	Stats	S. Kim
68.51% (198/91)	YTD Win/Loss	42.86% (24/32)
65.04% (426/229)	Sets Win/Loss	42.86% (54/72)
57.34% (3289/2447)	Games Win/Loss	47.28% (521/581)
69.26% (178/79)	Hard Win/Loss	43.64% (24/31)
61.54% (8/5)	Clay Win/Loss	0% (0/0)
63.16% (12/7)	Indoor Hard W/L	0.00% (0/1)
0.05	Aces Per Game	0
148	Aces Total	2
0.15	Double Faults Per Game	0.13
422	Total Double Faults	67
1:31:11	Average Match Time	1st Match
460.6	Average Opponent Rank	195.7
68% (11180/16379)	1st Serve %	72% (1165/1614)
60% (6723/11180)	1st Serve Win %	50% (582/1165)
46% (2389/5199)	2nd Serve Win %	41% (185/449)
50% (1198/2375)	Break Points Won % (Total)	42% (82/196)
50% (8158/16319)	Return Points Win %	43% (664/1537)
62.50% (5/3)	Cups W/L	0% (0/0)
42.86% (3/4)	Main Tour W/L	0% (0/0)
63.28% (81/47)	Challenger W/L	23.53% (4/13)
74.66% (109/37)	Futures W/L	51.28% (20/19)
68% (193/283)	Best of 3 Sets Win %	42% (23/55)
55% (30/55)	Tiebreaks Win % (Total)	17% (1/6)
57% (47/82)	Deciding Set Win %	53% (8/15)
88% (187/164)	1st Set Won, Won Match	84% (25/21)
12% (187/23)	1st Set Won, Lost Match	16% (25/4)
32% (102/33)	1st Set Lost, Won Match	10% (31/3)