Dayeon Back vs Yu Ning TsaiPrediction, Head-to-Head Results, and Stats
Dayeon Back and Yu Ning Tsai have met 1 time since 2026; Dayeon Back leads 1–0. Across all meetings Back has taken 2 sets to Tsai's 0. Their most recent meeting: Dayeon Back won at W35 Taipei (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Back | Ning Tsai | ||
|---|---|---|---|---|
| Indicator | Dayeon Back | Yu Ning Tsai | ||
| Wins in straight sets | 84% | 41/49 | 100% | 6/6 |
| Wins a set when losing | 17% | 4/23 | 17% | 2/12 |
| Goes to a deciding set | 17% | 12/72 | 11% | 2/18 |
| Covers −1.5 sets as favorite | 63% | 32/51 | — | |
| Covers +1.5 sets as underdog | 18% | 2/11 | 100% | 1/1 |
| Tiebreak sets won | 45% | 5/11 | 50% | 1/2 |
| Wins after taking set 1 | 96% | 45/47 | 100% | 6/6 |
| Wins 2-0 after taking set 1 | 87% | 41/47 | 100% | 6/6 |
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 1, Ning Tsai 0).
Style Matchup
Playing styles and historical archetype record
Back
👑 The Complete Package
Tsai
⚙️ Grinder
Matchup analysis
The 👑 The Complete Package archetype wins about 68% vs ⚙️ Grinder across 1,247 matches in our dataset: a stylistic lean toward Dayeon Back.
The Complete Package players often use elite serve & return and high bp conversion to pressure the grinder's relentless consistency.
Previous meetings
1 career meeting, newest first
Jun 16, 2026
W35 Taipei
H Hard · 1st Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Back | Tsai | ||
|---|---|---|---|---|
| Outcome | Dayeon Back | Yu Ning Tsai | ||
| 1 or more | 33% | 4/12 | 0% | 0/0 |
| 3 or more | 0% | 0/12 | 0% | 0/0 |
| 5 or more | 0% | 0/12 | 0% | 0/0 |
| 10 or more | 0% | 0/12 | 0% | 0/0 |
| 15 or more | 0% | 0/12 | 0% | 0/0 |
| 20 or more | 0% | 0/12 | 0% | 0/0 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Back | Tsai |
|---|---|---|
| W-L | 4–7 | - |
| Avg odds | 1.98 | - |
| ROI % | -27.3% | - |
| Units P/L | -3.01u | - |
Travel
Last 30 days
| Metric | Back | Tsai |
|---|---|---|
| Countries | 1 | — |
| Events | 1 | — |
| Matches | 2 | — |
| Distance | 0 mi · 0 km | — |
| Route | POR | — |
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
Across 3 shared opponents, both Back and Tsai posted a 67% win rate.
| Opponent | Back | Tsai |
|---|---|---|
| Khongorzul Aldarkhishig | W 60 60 | W 60 64 |
| Jiangxue Han | W 64 60 | W 75 61 |
| Varvara Panshina | L 62 46 06 | L 16 46 |
Recent Form
Last five matches per player
Maya Joint
Korea Open - Seoul · 2nd Round
Sep 23
Yue Yuan
Korea Open - Seoul · 1st Round
Sep 21
Viktoria Morvayova
W50 Guiyang · 1st Round
Sep 9
Mei Yamaguchi
W75 Tianjin · 1st Round
Sep 1
Laima Vladson
W50 Hamburg · 2nd Round
Aug 13
Arina Gabriela Vasilescu
W50 Hamburg · 1st Round
Aug 12
Julie Pastikova
W75 Leipzig · 1st Round
Aug 5
Xinxin Yao
W75 Hechingen · 1st Round
Jul 29
Anri Nagata
W15 Yeongwol · 2nd Round Qualifying
Sep 7
Jiwon Hwang
W15 Yeongwol · 1st Round Qualifying
Sep 6
Eunyeong Park
W15 Yeongwol · 1st Round Qualifying
Aug 30
Peangtarn Plipuech
W15 Tianjin · 2nd Round Qualifying
Aug 24
Yui Chikaraishi
W15 Tianjin · 1st Round Qualifying
Aug 23
Kayo Nishimura
W35 Taipei · 1st Round
Jun 23
Dayeon Back
W35 Taipei · 1st Round
Jun 16
Yiru Chen
W35 Wuning · 3rd Round Qualifying
May 18
Win rate
Matches, sets and games won · Last 12 months · 18–72 matches
| Metric | Back | Tsai |
|---|---|---|
| Matches won | 68% | 33% |
| Sets won | 65% | 37% |
| Games won | 56% | 44% |
Record by tier
Head-to-head record by tournament tier
| Stage | Back | Tsai |
|---|---|---|
| ITF W35 | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Back | Tsai |
|---|---|---|
| Hard | 1 | 0 |
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