Dayeon Back vs Maya JointPrediction, Head-to-Head Results, and Stats
Dayeon Back and Maya Joint have met 1 time since 2026; Maya Joint leads 1–0. Across all meetings Back has taken 0 sets to Joint's 2. Their most recent meeting: Maya Joint won at Korea Open - Seoul (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Back | Joint | ||
|---|---|---|---|---|
| Indicator | Dayeon Back | Maya Joint | ||
| Wins in straight sets | 84% | 41/49 | 43% | 9/21 |
| Wins a set when losing | 17% | 4/23 | 44% | 12/27 |
| Goes to a deciding set | 17% | 12/72 | 50% | 24/48 |
| Covers −1.5 sets as favorite | 63% | 32/51 | 28% | 7/25 |
| Covers +1.5 sets as underdog | 18% | 2/11 | 55% | 12/22 |
| Tiebreak sets won | 45% | 5/11 | 54% | 7/13 |
| Wins after taking set 1 | 96% | 45/47 | 62% | 13/21 |
| Wins 2-0 after taking set 1 | 87% | 41/47 | 43% | 9/21 |
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, Joint 1).
Style Matchup
Playing styles and historical archetype record
Back
👑 The Complete Package
Joint
⚙️ 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
Sep 23, 2026
Korea Open - Seoul
H Hard · 2nd Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Back | Joint | ||
|---|---|---|---|---|
| Outcome | Dayeon Back | Maya Joint | ||
| 1 or more | 39% | 5/13 | 84% | 16/19 |
| 3 or more | 0% | 0/13 | 32% | 6/19 |
| 5 or more | 0% | 0/13 | 0% | 0/19 |
| 10 or more | 0% | 0/13 | 0% | 0/19 |
| 15 or more | 0% | 0/13 | 0% | 0/19 |
| 20 or more | 0% | 0/13 | 0% | 0/19 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Back | Joint |
|---|---|---|
| W-L | 4–8 | 11–9 |
| Avg odds | 2.00 | 2.13 |
| ROI % | -33.4% | +0.1% |
| Units P/L | -4.01u | +0.03u |
Travel
Last 30 days
| Metric | Back | Joint |
|---|---|---|
| Countries | 1 | 3 |
| Events | 1 | 3 |
| Matches | 2 | 7 |
| Distance | 0 mi · 0 km | 1,246 mi · 2,005 km |
| Route | POR | POR → ROU → CZE |
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
Joint has a higher win rate against shared opponents (100% vs Back's 0%).
| Opponent | Back | Joint |
|---|---|---|
| Xinxin Yao | L 26 26 | W 26 76 63 |
| Viktoria Morvayova | L 36 36 | W 61 64 |
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
Mananchaya Sawangkaew
Wuhan Open - Wuhan · 1st Round Qualifying
Oct 10
Sinja Kraus
China Open - Beijing · 1st Round
Sep 30
Kimberly Birrell
Korea Open - Seoul · Final
Sep 27
Lanlana Tararudee
Korea Open - Seoul · Quarterfinals
Sep 26
Alina Korneeva
Korea Open - Seoul · Semifinals
Sep 26
Dayeon Back
Korea Open - Seoul · 2nd Round
Sep 23
Xinxin Yao
Korea Open - Seoul · 1st Round
Sep 21
Elina Svitolina
U.S. Open - New York · 2nd Round
Sep 3
Win rate
Matches, sets and games won · Last 12 months · 48–72 matches
| Metric | Back | Joint |
|---|---|---|
| Matches won | 68% | 44% |
| Sets won | 65% | 45% |
| Games won | 56% | 47% |
Record by tier
Head-to-head record by tournament tier
| Stage | Back | Joint |
|---|---|---|
| WTA 250 | 0 | 1 |
By surface
Head-to-head record per surface
| Surface | Back | Joint |
|---|---|---|
| Hard | 0 | 1 |
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