Prediction of Kayla Day vs Elitsa Kostova Head-to-Head, At
Wojtek Kolan
HEAD TO HEAD
K. Day vs E. Kostova
Kayla Day
USA
l
w
l
w
w
l
l
w
w
l
0
Win
1
Played
1
Win
26
Age
35
1.73m
Height
-
261
C. Rank
Ret.
84
Best Rank
130
0
Total Titles
0
0
YTD Titles
0
$561.1K
Career Money
$235.8K
Left-handed (Two-handed backhand)
Plays
Right-Handed
Elitsa Kostova
BUL
l
w
w
l
w
l
w
l
l
l
0
Win
1
Played
1
Win
26
Age
35
1.73m
Height
-
261
C. Rank
Ret.
84
Best Rank
130
0
Total Titles
0
0
YTD Titles
0
$561.1K
Career Money
$235.8K
Left-handed (Two-handed backhand)
Plays
Right-Handed
Head-to-head: Day 0 - 1 Kostova
They have played 3 sets in total, with Kayla Day winning 1 and Elitsa Kostova winning 2. 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 |
|---|---|
| Day | 0 |
| Kostova | 1 |
Last 1 H2H Matches:
(QF) Charlottesville(04-29-16)
Elitsa Kostova
4
6
6
Kayla Day
6
4
4
K. Day vs E. Kostova H2H Profile
| Stats | ||
|---|---|---|
| $561,063 | Career Prize Money | $235,783 |
| 56.47% (262-202) | Career Total W/L | 52.49% (421-381) |
| 0 | Clay | 1 |
| 7 | Titles | 6 |
| 0 | Total H2H Matches | 1 |
| 0% (0-0) | YTD Win/Loss | 0% (0-0) |
K. Day vs E. Kostova Match Preview:
- Second serve performance recent form: In recent form (last 6 months), Kayla Day has won 40.06% of points on their second serve, while Elitsa Kostova has won 0%. There is a high correlation between this stat and match prediction accuracy.
- Return game stats recent form: Return stats show Kayla Day, in recent form, has won 49.12% of their opponent's second serve points, while Elitsa Kostova has won 0%. The same stats for first serve returns are 30.61% and 0% respectively and this has a high correlation to pick who is favored in this H2H matchup.
- Under pressure analysis: Kayla Day has saved 44.29% of breakpoints in recent form, whereas Elitsa Kostova has saved 0% which is a useful statistic for in-game betting predictions.
- Performance overview: Over the last year Kayla Day has won 63.27% of matches played (W/L 31/18), with Elitsa Kostova winning 0% (W/L 0/0) that gives us an overall head-to head prediction overview.
- Best surface: Kayla Day has their best career surface win % on Clay, winning 60% (W/L 87/59), and worse career win % on Grass, winning 27% (W/L 3/8). Elitsa Kostova has their best career surface win % on Hard, winning 60% (W/L 130/98), and worse career win % on Grass, winning 31% (W/L 5/11).
- Player level: In the last year, Kayla Day has played most of their matches on the Challengers/ITF tournaments > $10K, winning 64.29% of matches (W/L 27/15), where as Elitsa Kostova has played most of their matches on the N/A, winning 0% of matches (W/L 0/0). 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 Kayla Day winning 0 times and Elitsa Kostova being victorious 1 times. They have played 3 sets in total, with Kayla Day winning 1 and Elitsa Kostova winning 2.
- The last match between Kayla Day and Elitsa Kostova 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, Kayla Day has played against opponents with an average rank of 314.96 while Elitsa Kostova has played against players with an average rank of 0.
- Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Kayla Day has won 53% of deciding sets over the last 12 months, while Elitsa Kostova has won 0% in all matches played on tour.
- Break point conversion: In recent form, Kayla Day has converted 35.89% of breakpoint opportunities, and Elitsa Kostova has converted 0% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.
Kayla Day vs Elitsa Kostova Editorial Preview By TennisTipster88.
K. Day vs E. Kostova H2H Stats Used In Our Predictions
| Stats | ||
|---|---|---|
| 0 | H2H Matches Won | 1 |
| 1 | Sets Won | 2 |
| 14 | Games Won | 16 |
| 4 | Total Double Faults | 5 |
| 2:38:0 | Average Match Time | 2:38:0 |
| 57% (52/92) | 1st Serve % | 65% (66/102) |
| 65% (34/52) | 1st Serve Win % | 68% (45/66) |
| 48% (19/40) | 2nd Serve Win % | 39% (14/36) |
| 29% (4/14) | Break Pts Won % | 50% (5/10) |
| 42% (43/102) | Return Points Win % | 42% (39/92) |
| 0% (0/1) | Best‑of‑3 Win % | 100% (1/1) |
| 0% (0/1) | Deciding Set Win % | 100% (1/1) |
| 0% (0/1) | 1st Set Won, Won Match | 0% (0/0) |
| 100% (1/1) | 1st Set Won, Lost Match | 0% (0/0) |
| 0% (0/0) | 1st Set Lost, Won Match | 100% (1/1) |
Recent Performance Stats
2nd Serve Win %: Day 44%, Kostova 0%.
Opp 2nd Serve Pts Won: Day 54%, Kostova 0%.
Break Points Saved %: Day 53%, Kostova 0%.
K. Day Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
 W50 Austin - 10-11-2025 | ||||
QF  Ekaterina KhayrutdinovaE. Khayrutdinova | L | 6-4 6-4 | ||
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 | ||
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 vs E. Kostova Stats Breakdown Vs All H2H Opponents
| Stats | ||
|---|---|---|
| 56.47% (262/202) | YTD Win/Loss | 52.49% (421/381) |
| 55.48% (597/479) | Sets Win/Loss | 51.90% (970/899) |
| 52.37% (5217/4745) | Games Win/Loss | 51.43% (8801/8312) |
| 56.64% (162/124) | Hard Win/Loss | 57.02% (130/98) |
| 59.59% (87/59) | Clay Win/Loss | 52.52% (219/198) |
| 47.62% (10/11) | Indoor Hard W/L | 47.52% (67/74) |
| 27.27% (3/8) | Grass Win/Loss | 31.25% (5/11) |
| 0.22 | Aces Per Game | 0.07 |
| 1096 | Aces Total | 615 |
| 0.36 | Double Faults Per Game | 0.08 |
| 1749 | Total Double Faults | 699 |
| 1:35:22 | Average Match Time | 1st Match |
| 451.18 | Average Opponent Rank | 605.19 |
| 60% (16889/28136) | 1st Serve % | 65% (16320/25246) |
| 65% (10965/16889) | 1st Serve Win % | 59% (9690/16320) |
| 46% (5156/11246) | 2nd Serve Win % | 47% (4192/8926) |
| 46% (1616/3499) | Break Points Won % (Total) | 45% (1398/3081) |
| 44% (12910/29070) | Return Points Win % | 44% (11076/25049) |
| 40.63% (13/19) | Slam W/L | 29.27% (12/29) |
| 42.11% (8/11) | Masters W/L | 33.33% (1/2) |
| 0% (0/0) | Cups W/L | 45.45% (10/12) |
| 37.21% (16/27) | Main Tour W/L | 38.27% (31/50) |
| 60.50% (219/143) | Challenger W/L | 53.58% (284/246) |
| 75.00% (6/2) | Futures W/L | 66.40% (83/42) |
| 57% (258/455) | Best of 3 Sets Win % | 52% (414/793) |
| 75% (3/4) | Best of 5 Sets Win % | 100% (1/1) |
| 48% (47/98) | Tiebreaks Win % (Total) | 42% (67/159) |
| 51% (76/149) | Deciding Set Win % | 51% (138/272) |
| 84% (270/227) | 1st Set Won, Won Match | 83% (418/347) |
| 16% (270/43) | 1st Set Won, Lost Match | 17% (418/69) |
| 18% (194/34) | 1st Set Lost, Won Match | 19% (384/72) |
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