Kayla Day vs Ana Paula Neffa De Los Rios Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
K. Day vs A. Paula Neffa De Los Rios

Kayla Day

USA

1

Win

Played

0

Win

Age

1.73m

Height

342

C. Rank

886

Best Rank

483

Total Titles

Ytd Titles

$561.1K

Career Money

Left-handed (Two-handed backhand)

Plays

Ana Paula Neffa De Los Rios

PAR

1

Win

Played

0

Win

Age

1.73m

Height

342

C. Rank

886

Best Rank

483

Total Titles

Ytd Titles

$561.1K

Career Money

Left-handed (Two-handed backhand)

Plays

Head-To-Head: Day 1 - 0 Rios

They have played 3 sets in total, with Kayla Day winning 2 and Ana Paula Neffa De Los Rios winning 1. The last match between Kayla Day and Ana Paula Neffa De Los Rios was at the Charlotte, 08-06-2015, Round: R1, Surface: Clay, with Kayla Day getting the victory 1-6 6-4 6-2.

Players	Head To Head Match Wins
Day	1
Rios	0

Last H2H Matches:

(R1) Charlotte(06-08-15)

Stats

Kayla Day

Ana Paula Neffa De Los Rios

K. Day vs A. P. N. D. L. Rios H2H Profile

K. Day	Stats	A. P. N. D. L. Rios
$561,063	Career Prize Money	$0
56.05% (250-196)	Career Total W/L	51.98% (92-85)
1	Clay	0
6	Titles	0
1	Total H2H Matches	0
0% (0-0)	YTD Win/Loss	0% (0-0)

K. Day vs A. P. N. D. L. Rios Match Preview

Second serve performance recent form: In recent form (last 6 months), Kayla Day has won 38.46% of points on their second serve, while Ana Paula Neffa De Los Rios 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 50.21% of their opponent's second serve points, while Ana Paula Neffa De Los Rios has won 0%. The same stats for first serve returns are 32.43% 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 40.32% of breakpoints in recent form, whereas Ana Paula Neffa De Los Rios has saved 0% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Kayla Day has won 60.00% of matches played (W/L 21/ 14), with Ana Paula Neffa De Los Rios winning 0% (W/L 21/ 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). Ana Paula Neffa De Los Rios has their best career surface win % on Clay, winning 55% (W/L 56/ 46), and worse career win % on Hard, winning 48% (W/L 36/ 39).
Player level: In the last year, Kayla Day has played most of their matches on the Challengers/ITF tournaments > $10K, winning 60.71% of matches (W/L 17/ 11), where as Ana Paula Neffa De Los Rios 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 1 times and Ana Paula Neffa De Los Rios being victorious 0 times. They have played 3 sets in total, with Kayla Day winning 2 and Ana Paula Neffa De Los Rios winning 1. The last match between Kayla Day and Ana Paula Neffa De Los Rios was at the Charlotte, 08-06-2015, Round: R1, Surface: Clay, with Kayla Day getting the victory 1-6 6-4 6-2.
Head to head match duration: In past head to head matches, the average match time between these players has been 0:0:0.
Opponent quality stats: Over the last 12 months, Kayla Day has played against opponents with an average rank of 275.46 while Ana Paula Neffa De Los Rios 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 44% of deciding sets over the last 12 months, while Ana Paula Neffa De Los Rios has won 0% in all matches played on tour.
Break point conversion: In recent form, Kayla Day has converted 44.31% of breakpoint opportunities, and Ana Paula Neffa De Los Rios 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 Ana Paula Neffa De Los Rios Editorial Preview By TennisTipster88.

K. Day vs A. P. N. D. L. Rios H2H Stats Used In Our Predictions

K. Day	Stats	A. P. N. D. L. Rios
1	H2H Matches Won	0
2	Sets Won	1
13	Games Won	12
0:0:0	Avg. Match Time	0:0:0
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 → Match Won	0% (0/1)
0% (0/0)	1st Set Won → Match Lost	100% (1/1)
100% (1/1)	1st Set Lost → Match Won	0% (0/0)

Recent Performance Stats

K. Day Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Guadalajara 125 Open - Guadalajara - 01-09-2025
SF Alexandra EalaA. Eala	L	6-2 6-3	Stats
QF Emiliana ArangoE. Arango	W	7-5 6-2	Stats
R2 Ana Sofia SanchezA. Sofia	W	6-1 6-4	Stats
R1 Emina BektasE. Bektas	W	6-4 3-6 6-4	Stats
U.S. Open - New York - 25-08-2025
Q1 Ena ShibaharaE. Shibahara	L	7-5 6-1	Stats

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A. P. N. D. L. Rios Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
W100 Figueira da Foz - 22-07-2024
Q1 Vasanti ShindeV. Shinde	L	w/o	Stats
W75+H Granby - 15-07-2024
R1 Jenna DefalcoJ. Defalco	L	6-2 7-5	Stats
W35 Santo Domingo - 27-05-2024
R2 Riya BhatiaR. Bhatia	L	4-6 7-6(5) 7-6(5)	Stats
W35 Sopo - 06-05-2024
QF Miriana TonaM. Tona	L	6-1 6-1	Stats
R2 Tiffany WilliamT. William	W	w/o	Stats

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K. Day vs A. P. N. D. L. Rios Stats Breakdown Vs All H2H Opponents

K. Day	Stats	A. P. N. D. L. Rios
56.05% (250/196)	YTD Win/Loss	51.98% (92/85)
55.18% (570/463)	Sets Win/Loss	50.76% (201/195)
52.27% (5005/4571)	Games Win/Loss	50.84% (1836/1775)
55.76% (150/119)	Hard Win/Loss	48.00% (36/39)
59.59% (87/59)	Clay Win/Loss	54.90% (56/46)
50.00% (10/10)	Indoor Hard W/L	0% (0/0)
27.27% (3/8)	Grass Win/Loss	0% (0/0)
0.22	Aces Per Game	0.02
1031	Aces Total	27
0.37	Double Faults Per Game	0.08
1718	Total Double Faults	137
1:34:49	Average Match Time	1st Match
447.65	Average Opponent Rank	113.59
60% (16102/26903)	1st Serve %	74% (3533/4765)
65% (10422/16102)	1st Serve Win %	56% (1979/3533)
46% (4958/10800)	2nd Serve Win %	47% (584/1232)
46% (1549/3359)	Break Points Won % (Total)	49% (298/613)
44% (12361/27821)	Return Points Win %	48% (2240/4687)
40.63% (13/19)	Slam W/L	0% (0/0)
42.11% (8/11)	Masters W/L	0% (0/0)
37.21% (16/27)	Main Tour W/L	0.00% (0/1)
60.17% (207/137)	Challenger W/L	46.74% (43/49)
75.00% (6/2)	Futures W/L	58.33% (49/35)
56% (246/437)	Best of 3 Sets Win %	52% (91/176)
75% (3/4)	Best of 5 Sets Win %	0% (0/0)
47% (45/95)	Tiebreaks Win % (Total)	45% (17/38)
51% (72/142)	Deciding Set Win %	58% (25/43)
84% (257/215)	1st Set Won, Won Match	86% (96/83)
16% (257/42)	1st Set Won, Lost Match	14% (96/13)
18% (189/34)	1st Set Lost, Won Match	10% (81/8)