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Portrait of Dayeon Back, tennis player
Player research cockpit

DayeonBack

TennisJack analysis

Dayeon Back currently has a large TennisJack sample of 88 completed matches, with a 67.0% win rate in the loaded match history. The recent form line is 3-7 across the latest 10 completed matches.

Latest rank #272
M
Matches88Completed matches
%
Win rate67.0%Across all matches
F
Latest form3-7In latest 10 matches
I
Index statusStrong candidateProfile confidence
Performance metrics
Hold Base63.9%
Break Pressure48.4%
Latest form (10 matches)
3-7
W L L L W L L L W L
Surface profile
Hardcourt outdoor
Canonical/players/dayeon-back/
Index statusStrong candidate
Last updatedData from TennisJack
Profile intelligence

Ten signals worth watching.

Built from 88 completed TennisJack matches: form, surface, odds, pressure and close-set behavior. The full match log stays below for audit.

01

Player DNA

Quick fingerprint from starts, service base, return bite and decider exposure.

Strong starter Break-heavy player
Set 1 punch65.9%
Service shield63.9%
Return bite48.4%
Decider risk20.5%
02

Favorite / Underdog Split

How the player behaves when priced as market favorite versus outsider.

Favorite 78.9% 45-12 - 57 matches Avg odds 1.32 | 1+ set 91.2%
Underdog 28.6% 4-10 - 14 matches Avg odds 3.18 | 1+ set 35.7%
03

First Set Personality

Shows whether the player starts cleanly, breaks first, or survives early pressure.

Set 1 win65.9%
Breaks first S150.6%
Broken first S149.4%
Recovers S152.4%
04

Break Pressure Profile

Return damage versus service leakage, built from set-level break counters.

Avg breaks4.28
Avg broken3.32
Balance0.97
Clean service matches14.8%
3+ breaks produced73.9%
Set 2 win65.9%
05

Clean Win / Comeback Index

Separates smooth 2-0 wins from matches where the player had to repair damage.

42.4%Clean 2-0 share among wins
Clean 2-0 wins25
Comeback signals62
Lost set 1, won match6
Comeback index70.5%
06

Surface Edge

Where the profile is most trustworthy and where the win rate really travels.

Primary surfaceHardcourt outdoor
Primary record45-17
Primary WR72.6%
Best surfaceHardcourt outdoor 72.6%
Hardcourt outdoor45-1772.6%
Unknown5-838.5%
Hardcourt indoor5-271.4%
Synthetic outdoor4-266.7%
07

Odds Value Pulse

Shows whether the player wins as expected or creates value at outsider prices.

Avg win odds1.40
Avg loss odds2.33
Biggest win odds4.00
2.00+ odds WR33.3%
2.00+ sample12
Odds sample71
08

Decider Profile

How often matches become complicated, and whether the player survives the third set.

Three-set share20.5%
Decider record10-8
Set 3 win55.6%
After losing S120.0%
09

Close Set Risk

Tie-break and 7-5 / 7-6 pressure profile, useful for spotting fragile edges.

Close sets29-25
Close-set WR53.7%
Tie-breaks5-8
Matches with tight set44
10

Momentum Trend

Compares the latest 5 matches with the previous 10 so form shifts are visible immediately.

Cooling down · 1 losses running
W L L L W L L L W L
Latest 5 WR20.0%
Previous 10 WR50.0%
Latest 51-4
Previous 105-5
Trend delta-30.0%
Latest 5 WR20.0%
Match log

All Dayeon Back matches in the TennisJack sample.

Scan date, tournament, surface, opponent, set score, result and service-return indicators before opening the deeper tools.

Open Player Research
DateMatchScoreResultHold / Break
23.09.2026R16 Dayeon Back vs Maya JointWTA Seoul 2-6 1-6Hardcourt outdoor Loss
Hold
28.6%
Break
12.5%
21.09.2026R32 Dayeon Back vs Yue YuanWTA Seoul 6-3 4-6 6-1Hardcourt outdoor Win
Hold
69.2%
Break
53.9%
09.09.2026 Dayeon Back vs Viktoria MorvayovaW50 Guiyang 3-6 3-6Surface pending Loss
Hold
55.6%
Break
11.1%
01.09.2026 Dayeon Back vs Mei YamaguchiW75 Tianjin 2-6 1-6Surface pending Loss
Hold
28.6%
Break
12.5%
13.08.2026 Dayeon Back vs Laima VladsonW50 Hamburg 0-6 1-6Surface pending Loss
Hold
16.7%
Break
0.0%
12.08.2026 Dayeon Back vs Arina Gabriela VasilescuW50 Hamburg 6-3 6-1Surface pending Win
Hold
62.5%
Break
87.5%
05.08.2026 Dayeon Back vs Julie PastikovaW75 Leipzig 1-6 3-6Surface pending Loss
Hold
25.0%
Break
25.0%
29.07.2026 Dayeon Back vs Xinxin YaoW75 Hechingen 2-6 2-6Surface pending Loss
Hold
37.5%
Break
12.5%
26.07.2026 Dayeon Back vs Lea NilssonW50 Horb 6-7 2-6Surface pending Loss
Hold
50.0%
Break
27.3%
24.07.2026 Dayeon Back vs Loes Ebeling KoningW50 Horb 6-3 6-4Surface pending Win
Hold
90.0%
Break
33.3%
23.07.2026 Dayeon Back vs Madelief HagemanW50 Horb 6-1 6-4Surface pending Win
Hold
66.7%
Break
75.0%
22.07.2026 Dayeon Back vs Oana Georgeta SimionW50 Horb 6-3 6-3Surface pending Win
Hold
55.6%
Break
77.8%
16.07.2026 Dayeon Back vs Alicia Herrero LinanaW50 Darmstadt 3-6 6-7Surface pending Loss
Hold
63.6%
Break
18.2%
15.07.2026 Dayeon Back vs Sandra SamirW50 Darmstadt 6-3 6-2Surface pending Win
Hold
77.8%
Break
62.5%
26.06.2026 Dayeon Back vs Priska Madelyn NugrohoW35 Taipei 4-6 6-7Hardcourt outdoor Loss
Hold
72.7%
Break
16.7%
24.06.2026 Dayeon Back vs Kisa YoshiokaW35 Taipei 6-3 6-3Hardcourt outdoor Win
Hold
77.8%
Break
55.6%
21.06.2026 Dayeon Back vs Haruka KajiW35 Taipei 6-1 7-5Hardcourt outdoor Win
Hold
66.7%
Break
66.7%
20.06.2026 Dayeon Back vs Hiromi AbeW35 Taipei 6-1 6-4Hardcourt outdoor Win
Hold
77.8%
Break
62.5%
19.06.2026 Dayeon Back vs Naho SatoW35 Taipei 7-5 6-2Hardcourt outdoor Win
Hold
60.0%
Break
70.0%
18.06.2026 Dayeon Back vs Anchisa ChantaW35 Taipei 6-4 6-1Hardcourt outdoor Win
Hold
88.9%
Break
50.0%
16.06.2026 Dayeon Back vs Yu-Ning TsaiW35 Taipei 6-1 6-3Hardcourt outdoor Win
Hold
87.5%
Break
62.5%
24.05.2026 Dayeon Back vs Ha Eum LeeW35 Changwon 6-1 6-2Hardcourt outdoor Win
Hold
100.0%
Break
57.1%
23.05.2026 Dayeon Back vs Jia-Jing LuW35 Changwon 6-2 6-2Hardcourt outdoor Win
Hold
75.0%
Break
75.0%
22.05.2026 Dayeon Back vs Reina GotoW35 Changwon 6-3 6-2Hardcourt outdoor Win
Hold
66.7%
Break
75.0%
22.05.2026 Dayeon Back vs Eun Ji LeeW35 Changwon 6-1 2-6 6-1Hardcourt outdoor Win
Hold
63.6%
Break
63.6%
17.05.2026 Dayeon Back vs BoYoung JeongW35 Andong 3-6 6-2 6-0Hardcourt outdoor Win
Hold
75.0%
Break
54.5%
16.05.2026 Dayeon Back vs Sofya LansereW35 Andong 6-3 6-1Hardcourt outdoor Win
Hold
75.0%
Break
75.0%
15.05.2026 Dayeon Back vs Yuki NaitoW35 Andong 6-3 7-5Hardcourt outdoor Win
Hold
72.7%
Break
50.0%
14.05.2026 Dayeon Back vs Hee Rae ImW35 Andong 6-0 6-0Hardcourt outdoor Win
Hold
100.0%
Break
100.0%
13.05.2026 Dayeon Back vs Amy ZhuW35 Andong 6-2 6-1Hardcourt outdoor Win
Hold
87.5%
Break
71.4%
09.05.2026 Dayeon Back vs Hanna ChangW35 Changwon 1-6 4-6Hardcourt outdoor Loss
Hold
44.4%
Break
12.5%
08.05.2026 Dayeon Back vs Yuki NaitoW35 Changwon 5-7 6-4 6-4Hardcourt outdoor Win
Hold
56.2%
Break
50.0%
07.05.2026 Dayeon Back vs Ha Eum LeeW35 Changwon 6-4 6-3Hardcourt outdoor Win
Hold
66.7%
Break
60.0%
06.05.2026 Dayeon Back vs Rinko MatsudaW35 Changwon 6-2 6-1Hardcourt outdoor Win
Hold
100.0%
Break
57.1%
02.05.2026 Dayeon Back vs Sohyun ParkW35 Goyang 6-7 4-6Hardcourt outdoor Loss
Hold
63.6%
Break
25.0%
01.05.2026 Dayeon Back vs Malaika RapoluW35 Goyang 6-4 6-3Hardcourt outdoor Win
Hold
60.0%
Break
66.7%
30.04.2026 Dayeon Back vs Jiangxue HanW35 Goyang 6-4 6-0Hardcourt outdoor Win
Hold
50.0%
Break
100.0%
29.04.2026 Dayeon Back vs Jenna DefalcoW35 Goyang 7-6 6-2Hardcourt outdoor Win
Hold
60.0%
Break
54.5%
26.04.2026 Dayeon Back vs Rinko MatsudaW15 Singapore 6-7 2-6Hardcourt indoor Loss
Hold
40.0%
Break
36.4%
25.04.2026 Dayeon Back vs Yingqun SunW15 Singapore 6-2 6-2Hardcourt indoor Win
Hold
100.0%
Break
50.0%
24.04.2026 Dayeon Back vs Yujin KimW15 Singapore 6-2 6-2Hardcourt indoor Win
Hold
87.5%
Break
62.5%
23.04.2026 Dayeon Back vs Carolann DelaunayW15 Singapore 6-2 6-3Hardcourt indoor Win
Hold
75.0%
Break
62.5%
22.04.2026 Dayeon Back vs Cherry KimW15 Singapore 4-6 6-3 6-2Hardcourt indoor Win
Hold
78.6%
Break
38.5%
22.03.2026 Dayeon Back vs Varvara PanshinaW50 Maanshan 6-2 4-6 0-6Hardcourt indoor Loss
Hold
58.3%
Break
25.0%
19.03.2026 Dayeon Back vs Valeria SavinykhW35 Maanshan 2-6 5-7Surface pending Loss
Hold
40.0%
Break
30.0%
18.03.2026 Dayeon Back vs Yuhan WangW35 Maanshan 7-5 6-1Hardcourt indoor Win
Hold
66.7%
Break
70.0%
06.03.2026 Dayeon Back vs Noemi BasilettiW35 Monastir 3-6 2-6Hardcourt outdoor Loss
Hold
44.4%
Break
12.5%
05.03.2026 Dayeon Back vs Alessandra MazzolaW35 Monastir 6-0 7-6Hardcourt outdoor Win
Hold
44.4%
Break
80.0%
04.03.2026 Dayeon Back vs Angelica RaggiW35 Monastir 6-2 7-5Hardcourt outdoor Win
Hold
60.0%
Break
70.0%
27.02.2026 Dayeon Back vs Eliska TichackovaW35 Monastir 6-7 3-6Hardcourt outdoor Loss
Hold
50.0%
Break
33.3%
26.02.2026 Dayeon Back vs Georgina Garcia-PerezW35 Monastir 6-2 6-1Hardcourt outdoor Win
Hold
87.5%
Break
71.4%
25.02.2026 Dayeon Back vs Angelica RaggiW35 Monastir 4-6 7-5 7-5Hardcourt outdoor Win
Hold
58.8%
Break
47.1%
17.02.2026 Dayeon Back vs Sahaja YamalapalliW100 Bengaluru 2-6 6-1 2-6Hardcourt outdoor Loss
Hold
41.7%
Break
45.5%
09.02.2026 Dayeon Back vs Tatiana ProzorovaW75 Pune 3-6 4-6Hardcourt outdoor Loss
Hold
55.6%
Break
20.0%
25.11.2025 Dayeon Back vs Sijia WeiITF W75 Playford 4-6 0-5Hardcourt outdoor Loss
Hold
25.0%
Break
25.0%
20.11.2025 Dayeon Back vs Talia GibsonITF W75 Sydney 3-6 2-6Hardcourt outdoor Loss
Hold
33.3%
Break
25.0%
18.11.2025 Dayeon Back vs Laquisa KhanITF W75 Sydney 6-4 6-2Hardcourt outdoor Win
Hold
77.8%
Break
55.6%
11.11.2025 Dayeon Back vs Gabriella Da Silva FickITF W50 Brisbane 2-6 6-2 4-5Hardcourt outdoor Loss
Hold
76.9%
Break
15.4%
04.11.2025 Dayeon Back vs Kisa YoshiokaITF W35 Hamamatsu 6-3 4-6 5-7Synthetic outdoor Loss
Hold
62.5%
Break
33.3%
02.11.2025 Dayeon Back vs Sara SaitoITF W35 Makinohara 1-6 2-6Synthetic outdoor Loss
Hold
12.5%
Break
28.6%
01.11.2025 Dayeon Back vs Ayano ShimizuITF W35 Makinohara 7-6 1-6 7-6Synthetic outdoor Win
Hold
53.3%
Break
27.8%
31.10.2025 Dayeon Back vs Eunhye LeeITF W35 Makinohara 6-3 6-4Synthetic outdoor Win
Hold
50.0%
Break
77.8%
30.10.2025 Dayeon Back vs Rinko MatsudaITF W35 Makinohara 6-3 6-1Synthetic outdoor Win
Hold
75.0%
Break
75.0%
28.10.2025 Dayeon Back vs Meng Yi ChenITF W35 Makinohara 6-2 6-0Synthetic outdoor Win
Hold
100.0%
Break
71.4%
11.10.2025 Dayeon Back vs Carol Young Suh LeeITF W35 Kunshan 6-3 5-7 3-6Hardcourt outdoor Loss
Hold
66.7%
Break
26.7%
10.10.2025 Dayeon Back vs Ekaterina ReyngoldITF W35 Kunshan 6-2 6-3Hardcourt outdoor Win
Hold
100.0%
Break
37.5%
09.10.2025 Dayeon Back vs Eunhye LeeITF W35 Kunshan 7-5 6-1Hardcourt outdoor Win
Hold
90.0%
Break
44.4%
08.10.2025 Dayeon Back vs Maria KalyakinaITF W35 Kunshan 6-2 6-3Hardcourt outdoor Win
Hold
88.9%
Break
50.0%
23.09.2025 Dayeon Back vs Momoko KoboriITF W100 Incheon 0-6 6-3 3-6Hardcourt outdoor Loss
Hold
50.0%
Break
25.0%
17.09.2025R32 Dayeon Back vs Beatriz Haddad MaiaWTA Seoul 4-6 3-6Hardcourt outdoor Loss
Hold
40.0%
Break
33.3%
04.09.2025 Dayeon Back vs Miho KuramochiITF W35 Nakhon Pathom 7-6 3-6 6-7Hardcourt outdoor Loss
Hold
56.2%
Break
31.6%
03.09.2025 Dayeon Back vs Patcharin CheapchandejITF W35 Nakhon Pathom 5-7 6-0 6-0Hardcourt outdoor Win
Hold
75.0%
Break
66.7%
28.08.2025 Dayeon Back vs Fangran TianITF W35 Nakhon Pathom 0-6 1-6Hardcourt outdoor Loss
Hold
14.3%
Break
0.0%
27.08.2025 Dayeon Back vs Elina NepliyITF W35 Nakhon Pathom 6-2 5-2Hardcourt outdoor Win
Hold
75.0%
Break
75.0%
26.07.2025 Dayeon Back vs Yeon Woo KuITF W35 Monastir 0-6 6-3 6-3Hardcourt outdoor Win
Hold
66.7%
Break
33.3%
25.07.2025 Dayeon Back vs Misaki MatsudaITF W35 Monastir 7-5 7-5Hardcourt outdoor Win
Hold
50.0%
Break
66.7%
24.07.2025 Dayeon Back vs Alicia DudeneyITF W35 Monastir 6-3 6-1Hardcourt outdoor Win
Hold
87.5%
Break
62.5%
23.07.2025 Dayeon Back vs Eliana BlakeW35 Monastir 6-1 6-2Hardcourt outdoor Win
Hold
-
Break
-
19.07.2025 Dayeon Back vs Sakura HosogiW35 Monastir 6-1 6-7 2-6Hardcourt outdoor Loss
Hold
-
Break
-
15.07.2025 Dayeon Back vs Olga HelmiW35 Monastir 6-2 6-0Hardcourt outdoor Win
Hold
-
Break
-
09.07.2025 Dayeon Back vs Chihiro MuramatsuW35 Monastir 6-4 5-0Hardcourt outdoor Win
Hold
-
Break
-
18.06.2025 Dayeon Back vs Haruna ArakawaITF W35 Taipei 6-2 6-2Hardcourt outdoor Win
Hold
-
Break
-
31.05.2025 Dayeon Back vs Gaeul JangITF W15 Daegu 6-2 6-4Hardcourt outdoor Win
Hold
77.8%
Break
55.6%
28.05.2025 Dayeon Back vs Cherry KimITF W15 Daegu 6-3 6-1Hardcourt outdoor Win
Hold
-
Break
-
22.05.2025 Dayeon Back vs Ayumi KoshiishiW35 Andong 6-0 6-3Hardcourt outdoor Win
Hold
-
Break
-
21.05.2025 Dayeon Back vs Sunam JeongITF W35 Andong 6-3 6-1Hardcourt outdoor Win
Hold
87.5%
Break
62.5%
15.05.2025 Dayeon Back vs Ya-Hsuan LeeITF W35 Changwon 7-5 6-2Hardcourt outdoor Win
Hold
60.0%
Break
70.0%
14.05.2025 Dayeon Back vs Punnin KovapituktedITF W35 Changwon 6-3 4-6 6-3Hardcourt outdoor Win
Hold
64.3%
Break
50.0%