Dayeon Back vs Sunam Jeong — W15 Yeongwol Quarter-final

W15 Yeongwol · CHALLENGER · Quarter-final
KOR
Dayeon Back
#291WTA
24 yrs
Last 10
LWWWLWWWWL
2 — 1
Sets
Monday, 30 September 2024
hard
KOR
Sunam Jeong
#1458WTA
29 yrs
Last 10
LWLWWLLLWL

Umpiry Score

Pre-match
Back D.
4.9
Heavy underdogUmpiry ScorePartial · surface data limited
  • Recent retirement (−1.5)
Jeong S.
5.5
Slight disadvantageUmpiry ScorePartial · surface data limited
Form & Matchup
5.0
H2H
5.0
7.7
Surface form
2.8
9.05-match win streak
Win streak
0.0Lost last 3
Fatigue & Travel
9.1
Minutes 14d
3-set count
7.0
Context
5.0
Defending pts
5.0

The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.

Back D.
6362
Jeong S.
2621

Head to head

2–1
DateTournamentRoundSurfaceWinnerScore
2025-05-19W35 AndongR32hardDayeon Back6-3 6-1
2023-09-04W15 YeongwolSFhardDayeon Back6-1 4-1 RET
2022-08-29W15 YeongwolR16hardSunam Jeong6-2 6-0

Statistics

Recent form
Back D.Jeong S.
69%1st serve in+3%66%
59%1st serve points won+7%52%
45%2nd serve points won+7%38%
55%Service points won+8%47%
50%Return points won+4%46%
50%Break points saved+7%43%
0.7Aces / match+0.31
2.5Double faults / match+0.81.7

Averages from each player's recent completed matches (20 vs 3). ATP, WTA & Challenger.

Draw

Final
Back D.
Lee E.
6-26-1
Back D.
Jeong B.
6-16-2
Semi-finals
Back D.
Zhang Y.
6-03-0
Lee E.
Wong H.
6-31-2
Back D.
Kim D.
7-666-4
Jeong B.
Lee E.
6-16-1
Quarter-finals
Back D.
Jeong B.
6-16-3
Zhang Y.
Muramatsu C.
6-46-4
Lee E.
Choi S.
3-66-16-4
Wong H.
Lin F.
6-23-66-3
Back D.
Jeong S.
6-23-66-2
Kim D.
Kim S.
6-16-2
Jeong B.
Ahn Y.
6-36-746-2
Lee E.
Oh E.
6-06-1
R16
Back D.
Kim D.
6-36-2
Jeong B.
Lee P.
6-06-3
Muramatsu C.
Jang G.
6-46-3
Zhang Y.
Park E.
6-33-66-4
Lee E.
Kikawada R.
6-46-0
Choi S.
Wi H.
6-31-67-64
Lin F.
Kim Y.
6-3
Wong H.
Lee E.
6-16-3
Back D.
Hu F.
6-06-3
Jeong S.
Lee C.
6-37-65
Kim S.
Nepliy E.
3-66-46-2
Kim D.
Kim Y.
7-57-61
Jeong B.
Choi O.
6-36-2
Ahn Y.
Jessup M.
6-34-66-3
Oh E.
Kim E.
6-47-5
Lee E.
Oh J.
7-56-766-3
R32
Back D.
Oh E.
6-06-4
Kim D.
Ye Q.
6-36-4
Lee P.
Jeong S.
3-66-46-3
Jeong B.
Kim S.
6-26-2
Muramatsu C.
Jang A.
6-16-2
Jang G.
Kim N.
3-67-51-2
Park E.
Kim C.
3-67-57-5
Zhang Y.
Kang N.
6-16-1
Lee E.
Arakawa N.
6-07-5
Kikawada R.
Ahn Y.
6-36-4
Choi S.
Nepliy E.
3-66-36-2
Wi H.
Fiquet T.
6-46-3
Lin F.
Zhang J.
6-36-2
Kim Y.
Liu Y.
6-36-2
Lee E.
Oh J.
7-54-66-4
Wong H.
Choi O.
6-36-4
Kim D.
Lee P.
6-46-1
Back D.
Zhenikhova S.
6-36-0
Hu F.
Kim C.
0-66-26-1
Jeong S.
Liu Y.
6-06-2
Lee C.
Zhao X.
6-37-65
Nepliy E.
Wi H.
7-56-3
Kim S.
Liu Y.
6-40-66-2
Kim Y.
Sun Y.
7-626-1
Jeong B.
Ye Q.
5-77-56-1
Choi O.
Ueda R.
6-11-66-0
Ahn Y.
Lim E.
6-23-1
Jessup M.
Zhang Y.
1-66-46-2
Oh E.
Lin F.
6-22-67-64
Kim E.
Jang G.
6-26-2
Oh J.
Kang N.
6-27-5
Lee E.
Eom S.
6-06-0