Dayeon Back vs Jenna DefalcoPrediction, Head-to-Head Results, and Stats
Dayeon Back and Jenna Defalco have met 1 time since 2026; Dayeon Back leads 1–0. Across all meetings Back has taken 2 sets to Defalco's 0. Their most recent meeting: Dayeon Back won at W35 Goyang (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Back | Defalco | ||
|---|---|---|---|---|
| Indicator | Dayeon Back | Jenna Defalco | ||
| Wins in straight sets | 85% | 44/52 | 75% | 6/8 |
| Wins a set when losing | 26% | 6/23 | 38% | 5/13 |
| Goes to a deciding set | 19% | 14/75 | 33% | 7/21 |
| Covers −1.5 sets as favorite | 66% | 35/53 | 43% | 3/7 |
| Covers +1.5 sets as underdog | 25% | 3/12 | 46% | 6/13 |
| Tiebreak sets won | 46% | 6/13 | 33% | 2/6 |
| Wins after taking set 1 | 94% | 47/50 | 86% | 6/7 |
| Wins 2-0 after taking set 1 | 88% | 44/50 | 86% | 6/7 |
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, Defalco 0).
Style Matchup
Playing styles and historical archetype record
Back
👑 The Complete Package
Defalco
🪃 Counterpuncher
Matchup analysis
The 👑 The Complete Package archetype wins about 56% vs 🪃 Counterpuncher across 6,005 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 counterpuncher's elite bp conversion.
Previous meetings
1 career meeting, newest first
Apr 29, 2026
W35 Goyang
H Hard · 1st Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Back | Defalco | ||
|---|---|---|---|---|
| Outcome | Dayeon Back | Jenna Defalco | ||
| 1 or more | 39% | 7/18 | 100% | 7/7 |
| 3 or more | 6% | 1/18 | 14% | 1/7 |
| 5 or more | 0% | 0/18 | 0% | 0/7 |
| 10 or more | 0% | 0/18 | 0% | 0/7 |
| 15 or more | 0% | 0/18 | 0% | 0/7 |
| 20 or more | 0% | 0/18 | 0% | 0/7 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Back | Defalco |
|---|---|---|
| W-L | 12–5 | 4–4 |
| Avg odds | 1.41 | 1.97 |
| ROI % | -13.2% | -15.4% |
| Units P/L | -2.24u | -1.23u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Back | Defalco |
|---|---|---|
| Countries | 2 | 3 |
| Events | 2 | 3 |
| Matches | 3 | 8 |
| Distance | — | — |
| Route | USA → POR | USA → AUT → EGY |
Host country from the tournament each match was played in, over the last 30 days. 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 (100% vs Defalco's 0%).
| Opponent | Back | Defalco |
|---|---|---|
| Jia Jing Lu | W 62 62 | L 67 00 |
Recent Form
Last five matches per player
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
Lea Nilsson
W50 Horb · Final
Jul 26
Loes Ebeling Koning
W50 Horb · Quarterfinals
Jul 24
Madelief Hageman
W50 Horb · 2nd Round
Jul 23
Oana Georgeta Simion
W50 Horb · 1st Round
Jul 22
Celia Cervino Ruiz
W15 Torello · Quarterfinals
Aug 28
Isabel Pascual Montalvo
W15 Torello · 2nd Round
Aug 27
Tian Jialin
W15 Torello · 1st Round
Aug 25
Paula Cembranos
W15 Logrono · Quarterfinals
Aug 21
Daria Shubina
W15 Logrono · 2nd Round
Aug 20
Wozuko Mdlulwa
W15 Logrono · 1st Round
Aug 19
Angelina Voloshchuk
W35 Southaven · 2nd Round
Aug 6
Jo Yee Chan
W35 Southaven · 1st Round
Aug 5
Win rate
Matches, sets and games won · Last 12 months · 23–75 matches
| Metric | Back | Defalco |
|---|---|---|
| Matches won | 69% | 35% |
| Sets won | 67% | 41% |
| Games won | 57% | 46% |
Record by tier
Head-to-head record by tournament tier
| Stage | Back | Defalco |
|---|---|---|
| ITF W35 | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Back | Defalco |
|---|---|---|
| Hard | 1 | 0 |
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