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Head-to-Head

Dayeon Back vs Mei YamaguchiPrediction, Head-to-Head Results, and Stats

DB

🇰🇷Dayeon Back

#253 · 24 yrs

3w
0–1

1 meeting · sets 0–2

MY

🇯🇵Mei Yamaguchi

#257 · 27 yrs

3

Dayeon Back and Mei Yamaguchi have met 1 time since 2026; Mei Yamaguchi leads 1–0. Across all meetings Back has taken 0 sets to Yamaguchi's 2. Their most recent meeting: Mei Yamaguchi won at W75 Tianjin (2026).

Spread & Straight-Sets Form

Completed best-of-3 matches · Last 12 months

IndicatorBackYamaguchi
Wins in straight sets84%64%
Wins a set when losing17%32%
Goes to a deciding set17%34%
Covers −1.5 sets as favorite63%40%
Covers +1.5 sets as underdog18%50%
Tiebreak sets won45%30%
Wins after taking set 196%75%
Wins 2-0 after taking set 187%67%

Colored rows are higher-is-better: green above 50%, red below. Favorite/underdog set by book odds; cover rows count only matches with odds on record. Head-to-head: 1 of 1 completed meetings ended in straight sets (Back 0, Yamaguchi 1).

Style Matchup

Playing styles and historical archetype record

Back

👑 The Complete Package

Elite serve & returnHigh BP conversionAll-surface dominanceClutch performer
vs

Yamaguchi

🏹 Frontrunner

Fast startsAggressive openersMomentum-drivenStrong holds

Matchup analysis

👑 The Complete Package vs 🏹 Frontrunner is historically tight (49% vs 51%, 978 matches). Neither style has a clear edge, so form, surface, and the head-to-head matter most.

Previous meetings

1 career meeting, newest first

Sep 1, 2026

W75 Tianjin

H Hard · 1st Round

26
16
Yamaguchi

Prop Research

Hit rates on common betting markets · Last 90 days

OutcomeBackYamaguchi
1 or more33%43%
3 or more0%0%
5 or more0%0%
10 or more0%0%
15 or more0%0%
20 or more0%0%

Player ROI

Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days

MetricBackYamaguchi
W-L4–72–7
Avg odds1.982.43
ROI %-27.3%-58.3%
Units P/L-3.01u-5.25u

Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.

Travel

Last 30 days

MetricBackYamaguchi
Countries12
Events12
Matches24
Distance0 mi · 0 km2,133 mi · 3,432 km
RoutePORSGP → CHN

Host country from each tournament in the last 30 days, including the current event even when a player arrived on a bye. Route is the order of countries visited; consecutive stops in the same country are shown once. Distance is the great-circle total between host cities, shown only when every stop in the window is geocoded. A rough fatigue signal, not a headline stat.

Common opponents

Results vs. opponents both players faced · Last 12 months

Back has a higher win rate against shared opponents (78% vs Yamaguchi's 56%).

OpponentBackYamaguchi
Reina Goto
W
63
62
L
75
36
26
Haruka Kaji
W
61
75
W
64
61
Naho Sato
W
75
62
W
62
75
Eunhye Lee
W
63
64
W
46
62
63
Sofya Lansere
W
63
61
W
63
62
Ayano Shimizu
W
76
16
76
L
46
62
36
Gabriella Da Silva Fick
L
26
62
46
L
36
36
Khongorzul Aldarkhishig
W
60
60
W
61
61
Talia Gibson
L
36
26
L
63
67
26

Recent Form

Last five matches per player

Back
LWLLLWLL
L

Maya Joint

Korea Open - Seoul · 2nd Round

26
16

Sep 23

W

Yue Yuan

Korea Open - Seoul · 1st Round

63
46
61

Sep 21

L

Viktoria Morvayova

W50 Guiyang · 1st Round

36
36

Sep 9

L

Mei Yamaguchi

W75 Tianjin · 1st Round

26
16

Sep 1

L

Laima Vladson

W50 Hamburg · 2nd Round

06
16

Aug 13

W

Arina Gabriela Vasilescu

W50 Hamburg · 1st Round

63
61

Aug 12

L

Julie Pastikova

W75 Leipzig · 1st Round

16
36

Aug 5

L

Xinxin Yao

W75 Hechingen · 1st Round

26
26

Jul 29

Yamaguchi
LLLWLLWL
L

Wushuang Zheng

Jingshan Tennis Open - Jingshan · 1st Round

16
36

Sep 28

L

Alycia Parks

Singapore Tennis Open - Singapore · 1st Round

46
36

Sep 22

L

Kyoka Okamura

Singapore Tennis Open - Singapore · 3rd Round Qualifying

16
16

Sep 20

W

Ulrikke Eikeri

Singapore Tennis Open - Singapore · 1st Round Qualifying

61
64

Sep 19

L

Tahlia Kokkinis

W50 Guiyang · 1st Round

64
677
16

Sep 8

L

Zhuoxuan Bai

W75 Tianjin · 2nd Round

63
16
06

Sep 3

W

Dayeon Back

W75 Tianjin · 1st Round

62
61

Sep 1

L

Polina Kudermetova

Mubadala DC Open - Washington · 1st Round Qualifying

667
46

Jul 25

Win rate

Matches, sets and games won · Last 12 months · 56–72 matches

MetricBackYamaguchi
Matches won68%45%
Sets won65%46%
Games won56%49%

Record by tier

Head-to-head record by tournament tier

StageBackYamaguchi
ITF W7501

By surface

Head-to-head record per surface

SurfaceBackYamaguchi
Hard01

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Dayeon Back vs Mei Yamaguchi FAQ

Mei Yamaguchi leads the head-to-head 1–0 over 1 meetings.