Head 2 Head
Win Loss Stats
Back
LWLLLWLLLW
Woo Ku
LWLLWLWLLW
2026
2025
2024
44 - 18
19 - 20
33-10
Hard
19-16
5-3
I Hard
0-1
6-5
Clay
0-2
- D.Back (1)
- Y.Ku (7)
- 0-6 6-3 6-3
- 1/2
-
26 Jul 25
-
W35 Monastir -
-
Hard
-
-
21 Jun 25
-
W35 Taipei -
-
Hard
-
-
-
02 Oct 26
-
Gimcheon -
-
Hard
-
Latest Tonic News – Dayeon Back and Yeon Woo Ku
-
“I also gained my life back,” Emma Navarro opens up about 3-year health battle
-
Carlos Alcaraz targets first back-to-back Japan Open titles in 32 years
-
Andy Murray outlines ongoing plans to help Jack Draper as former world No. 4 eyes tour comeback
-
“Bloody oath it is. It’s massive,” Pat Rafter hails Alex de Minaur after comeback win over Alexander Zverev
Dayeon Back
| Year | Sum. | Hard | Clay | I.hard | Grass | C. |
|---|---|---|---|---|---|---|
| 2026 | 44-18 | 33-10 | 6-5 | 5-3 | 0-0 | 0-0 |
| 2025 | 48-26 | 44-24 | 0-0 | 0-0 | 0-0 | 4-2 |
| 2024 | 54-20 | 46-16 | 3-1 | 0-1 | 0-0 | 5-2 |
| 2023 | 44-15 | 44-15 | 0-0 | 0-0 | 0-0 | 0-0 |
| 2022 | 19-11 | 19-11 | 0-0 | 0-0 | 0-0 | 0-0 |
| 2021 | 7-8 | 2-3 | 5-4 | 0-1 | 0-0 | 0-0 |
| 2020 | 0-0 | 0-0 | 0-0 | 0-0 | 0-0 | 0-0 |
| 2019 | 18-7 | 18-7 | 0-0 | 0-0 | 0-0 | 0-0 |
| 2018 | 6-3 | 3-2 | 0-0 | 3-1 | 0-0 | 0-0 |
| Total | 240-108 | 209-88 | 14-10 | 8-6 | 0-0 | 9-4 |
Seoul
-
Maya JointM.JointAUS Loss
- 6-2 6-1
-
2nd
-
23 Sep 26
-
Yue YuanY.YuanCHN
- 6-3 4-6 6-1
- 1st
-
21 Sep 26
W50 Guiyang
-
Viktoria MorvayovaV.MorvayovaSVK Loss
- 6-3 6-3
- 1st
-
09 Sep 26
W75 Tianjin
-
Mei YamaguchiM.YamaguchiJPN Loss
- 6-2 6-1
- 1st
-
01 Sep 26
W50 Hamburg
-
Laima VladsonL.VladsonLTU Loss
- 6-0 6-1
- 2nd
-
13 Aug 26
-
Arina Gabriela VasilescuA.VasilescuROU
- 6-3 6-1
- 1st
-
12 Aug 26
W75 Leipzig
-
Julie PastikovaJ.PastikovaCZE Loss
- 6-1 6-3
- 1st
-
05 Aug 26
W75 Hechingen
-
Xinxin YaoX.YaoCHN Loss
- 6-2 6-2
- 1st
-
29 Jul 26
W50 Horb
-
Lea NilssonL.NilssonSWE Loss
- 7-63 6-2
- Fin.
-
26 Jul 26
-
Denislava GlushkovaD.GlushkovaBUL
- 6-2 4-0 ret.
- 1/2
-
25 Jul 26
Yeon Woo Ku
| Year | Sum. | Hard | Clay | I.hard | Grass | C. |
|---|---|---|---|---|---|---|
| 2026 | 19-20 | 19-16 | 0-2 | 0-1 | 0-1 | 0-0 |
| 2025 | 63-22 | 61-20 | 0-0 | 0-0 | 2-2 | 0-0 |
| 2024 | 40-27 | 35-23 | 4-1 | 1-3 | 0-0 | 0-0 |
| 2023 | 31-24 | 21-20 | 5-3 | 5-1 | 0-0 | 0-0 |
| 2022 | 21-17 | 14-12 | 2-2 | 5-3 | 0-0 | 0-0 |
| 2021 | 52-19 | 30-10 | 13-7 | 9-2 | 0-0 | 0-0 |
| 2020 | 0-0 | 0-0 | 0-0 | 0-0 | 0-0 | 0-0 |
| 2019 | 9-4 | 9-4 | 0-0 | 0-0 | 0-0 | 0-0 |
| 2018 | 1-1 | 1-1 | 0-0 | 0-0 | 0-0 | 0-0 |
| Total | 236-134 | 190-106 | 24-15 | 20-10 | 2-3 | 0-0 |
Seoul
-
Elena Gabriela RuseE.RuseROU Loss
- 2-6 7-61 6-1
-
2nd
-
24 Sep 26
-
Alevtina IbragimovaA.IbragimovaRUS
- 6-3 6-2
- 1st
-
22 Sep 26
W50 Leiria
-
Margaux RouvroyM.RouvroyFRA Loss
- 6-4 4-6 6-3
- 1st
-
02 Sep 26
New York
-
Storm HunterS.HunterAUS Loss
- 4-6 7-66 6-0
- q2
-
26 Aug 26
-
Astra SharmaA.SharmaAUS
- 6-4 6-3
- q1
-
25 Aug 26
W100 Landisville
-
Mai HontamaM.HontamaJPN Loss
- 6-1 4-6 6-3
- 2nd
-
08 Aug 26
-
Anna Sinclair RogersA.RogersUSA
- 6-2 6-3
- 1st
-
05 Aug 26
Vancouver
-
Emma DongE.DongCAN Loss
- 4-6 6-2 7-66
- 1st
-
28 Jul 26
W100 Evansville
-
Caroline DolehideC.DolehideUSA Loss
- 7-63 7-65
- Fin.
-
26 Jul 26
-
Lucrezia StefaniniL.StefaniniITA
- 6-4 6-2
- 1/2
-
25 Jul 26
H2H Ranking live progression
