Prediction of Elitsa Kostova vs Kayla Day Head-to-Head, At
Wojtek Kolan
HEAD TO HEAD
E. Kostova vs K. Day
Elitsa Kostova
BUL
l
w
w
l
w
l
w
l
l
l
1
Win
1
Played
0
Win
35
Age
26
-
Height
1.73m
Ret.
C. Rank
261
130
Best Rank
84
0
Total Titles
0
0
YTD Titles
0
$235.8K
Career Money
$561.1K
Right-Handed
Plays
Left-handed (Two-handed backhand)
Kayla Day
USA
w
l
w
l
w
w
l
l
w
w
1
Win
1
Played
0
Win
35
Age
26
-
Height
1.73m
Ret.
C. Rank
261
130
Best Rank
84
0
Total Titles
0
0
YTD Titles
0
$235.8K
Career Money
$561.1K
Right-Handed
Plays
Left-handed (Two-handed backhand)
Head-to-head: Kostova 1 - 0 Day
They have played 3 sets in total, with Elitsa Kostova winning 2 and Kayla Day winning 1. The last match between Elitsa Kostova and Kayla Day was at the Charlottesville, 29-04-2016, Round: QF, Surface: Clay, with Elitsa Kostova getting the victory 4-6 6-4 6-4.
| Players | Head To Head Match Wins |
|---|---|
| Kostova | 1 |
| Day | 0 |
Last 1 H2H Matches:
(QF) Charlottesville(04-29-16)
Elitsa Kostova
4
6
6
Kayla Day
6
4
4
E. Kostova vs K. Day H2H Profile
| Stats | ||
|---|---|---|
| $235,783 | Career Prize Money | $561,063 |
| 52.49% (421-381) | Career Total W/L | 56.59% (262-201) |
| 1 | Clay | 0 |
| 6 | Titles | 7 |
| 1 | Total H2H Matches | 0 |
| 0% (0-0) | YTD Win/Loss | 0% (0-0) |
E. Kostova vs K. Day Match Preview:
- Second serve performance recent form: In recent form (last 6 months), Elitsa Kostova has won 0% of points on their second serve, while Kayla Day has won 40.12%. There is a high correlation between this stat and match prediction accuracy.
- Return game stats recent form: Return stats show Elitsa Kostova, in recent form, has won 0% of their opponent's second serve points, while Kayla Day has won 49.31%. The same stats for first serve returns are 0% and 30.56% respectively and this has a high correlation to pick who is favored in this H2H matchup.
- Under pressure analysis: Elitsa Kostova has saved 0% of breakpoints in recent form, whereas Kayla Day has saved 44.66% which is a useful statistic for in-game betting predictions.
- Performance overview: Over the last year Elitsa Kostova has won 0% of matches played (W/L 0/0), with Kayla Day winning 64.58% (W/L 31/17) that gives us an overall head-to head prediction overview.
- Best surface: Elitsa Kostova has their best career surface win % on Hard, winning 57% (W/L 130/98), and worse career win % on Grass, winning 31% (W/L 5/11). Kayla Day has their best career surface win % on Clay, winning 57% (W/L 87/59), and worse career win % on Grass, winning 27% (W/L 3/8).
- Player level: In the last year, Elitsa Kostova has played most of their matches on the N/A, winning 0% of matches (W/L 0/0), where as Kayla Day has played most of their matches on the Challengers/ITF tournaments > $10K, winning 65.85% of matches (W/L 27/14). When comparing stats between players to predict the favorite, it is of course all relative to the event level they have been playing at.
- Direct H2H matches: They have played 1 times before with Elitsa Kostova winning 1 times and Kayla Day being victorious 0 times. They have played 3 sets in total, with Elitsa Kostova winning 2 and Kayla Day winning 1.
- The last match between Elitsa Kostova and Kayla Day was at the Charlottesville, 29-04-2016, Round: QF, Surface: Clay, with Elitsa Kostova getting the victory 4-6 6-4 6-4.
- Head to head match duration: In past head to head matches, the average match time between these players has been 2:38:0.
- Opponent quality stats: Over the last 12 months, Elitsa Kostova has played against opponents with an average rank of 0 while Kayla Day has played against players with an average rank of 310.6.
- Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Elitsa Kostova has won 0% of deciding sets over the last 12 months, while Kayla Day has won 53% in all matches played on tour.
- Break point conversion: In recent form, Elitsa Kostova has converted 0% of breakpoint opportunities, and Kayla Day has converted 36.51% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.
Elitsa Kostova vs Kayla Day Editorial Preview By TennisTipster88.
E. Kostova vs K. Day H2H Stats Used In Our Predictions
| Stats | ||
|---|---|---|
| 1 | H2H Matches Won | 0 |
| 2 | Sets Won | 1 |
| 16 | Games Won | 14 |
| 5 | Total Double Faults | 4 |
| 2:38:0 | Average Match Time | 2:38:0 |
| 65% (66/102) | 1st Serve % | 57% (52/92) |
| 68% (45/66) | 1st Serve Win % | 65% (34/52) |
| 39% (14/36) | 2nd Serve Win % | 48% (19/40) |
| 50% (5/10) | Break Pts Won % | 29% (4/14) |
| 42% (39/92) | Return Points Win % | 42% (43/102) |
| 100% (1/1) | Best‑of‑3 Win % | 0% (0/1) |
| 100% (1/1) | Deciding Set Win % | 0% (0/1) |
| 0% (0/0) | 1st Set Won, Won Match | 0% (0/1) |
| 0% (0/0) | 1st Set Won, Lost Match | 100% (1/1) |
| 100% (1/1) | 1st Set Lost, Won Match | 0% (0/0) |
Recent Performance Stats
2nd Serve Win %: Kostova 0%, Day 45%.
Opp 2nd Serve Pts Won: Kostova 0%, Day 55%.
Break Points Saved %: Kostova 0%, Day 54%.
E. Kostova Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
| Belgrade - Belgrade - 26-07-2021 | ||||
R1  Arantxa RusA. Rus | L | 6-1 6-0 | ||
| W60 Biarritz - 12-07-2021 | ||||
R1  Estelle CascinoE. Cascino | L | 6-4 6-3 | ||
| W100 Contrexeville - 05-07-2021 | ||||
R2  Dalma GalfiD. Galfi | L | 7-6(2) 6-1 | ||
R1  Ulrikke EikeriU. Eikeri | W | 6-4 3-6 6-4 | ||
 Wimbledon - London - 28-06-2021 | ||||
Q2  Xinyu WangX. Wang | L | 6-2 6-1 | ||
K. Day Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
 W50 Austin - 10-11-2025 | ||||
R2  Gina FeistelG. Feistel | W | 6-4 3-6 7-5 | ||
R1 Carolyn AnsariC. Ansari | W | 6-2 6-3 | ||
 W75 Toronto - 27-10-2025 | ||||
R1 Fiona CrawleyF. Crawley | L | 6-1 6-2 | ||
| W100 Tyler - 20-10-2025 | ||||
QF  Olivia GadeckiO. Gadecki | L | 7-6(4) 3-6 6-3 | ||
R2  Carmen Andreea HereaC. Andreea | W | 6-2 4-6 6-2 | ||
E. Kostova vs K. Day Stats Breakdown Vs All H2H Opponents
| Stats | ||
|---|---|---|
| 52.49% (421/381) | YTD Win/Loss | 56.59% (262/201) |
| 51.90% (970/899) | Sets Win/Loss | 55.59% (597/477) |
| 51.43% (8801/8312) | Games Win/Loss | 52.39% (5209/4733) |
| 57.02% (130/98) | Hard Win/Loss | 56.84% (162/123) |
| 52.52% (219/198) | Clay Win/Loss | 59.59% (87/59) |
| 47.52% (67/74) | Indoor Hard W/L | 47.62% (10/11) |
| 31.25% (5/11) | Grass Win/Loss | 27.27% (3/8) |
| 0.07 | Aces Per Game | 0.22 |
| 615 | Aces Total | 1094 |
| 0.08 | Double Faults Per Game | 0.36 |
| 699 | Total Double Faults | 1748 |
| 1st Match | Average Match Time | 1:35:22 |
| 605.19 | Average Opponent Rank | 451.02 |
| 65% (16320/25246) | 1st Serve % | 60% (16848/28081) |
| 59% (9690/16320) | 1st Serve Win % | 65% (10938/16848) |
| 47% (4192/8926) | 2nd Serve Win % | 46% (5151/11232) |
| 45% (1398/3081) | Break Points Won % (Total) | 46% (1615/3492) |
| 44% (11076/25049) | Return Points Win % | 44% (12888/29003) |
| 29.27% (12/29) | Slam W/L | 40.63% (13/19) |
| 33.33% (1/2) | Masters W/L | 42.11% (8/11) |
| 45.45% (10/12) | Cups W/L | 0% (0/0) |
| 38.27% (31/50) | Main Tour W/L | 37.21% (16/27) |
| 53.58% (284/246) | Challenger W/L | 60.66% (219/142) |
| 66.40% (83/42) | Futures W/L | 75.00% (6/2) |
| 52% (414/793) | Best of 3 Sets Win % | 57% (258/454) |
| 100% (1/1) | Best of 5 Sets Win % | 75% (3/4) |
| 42% (67/159) | Tiebreaks Win % (Total) | 48% (47/98) |
| 51% (138/272) | Deciding Set Win % | 51% (76/149) |
| 83% (418/347) | 1st Set Won, Won Match | 84% (270/227) |
| 17% (418/69) | 1st Set Won, Lost Match | 16% (270/43) |
| 19% (384/72) | 1st Set Lost, Won Match | 18% (193/34) |
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