H2H data updated: 2026-10-29 00:00 UTC

Kayla Day vs Elvina Kalieva H2H: 1-0

Kayla Day holds a 1–0 lead over Elvina Kalieva in their WTA head-to-head. Across 1 main-draw meeting, Kayla Day leads 1–0 on hard courts. Most recently, Kayla Day won the 2026 Guadalajara Open first round 7-6(9) 6-4.

United States Age 27 Left-Handed 173 cm / 5'8"
H2H
1 – 0
1 main-draw meetings
United States Age 23 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Kayla Day #123 7-6(9) 6-4 Elvina Kalieva #113 Match data Sep 14, 2026 R32 Guadalajara Open WTA 500 Hard

Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.

Career Comparison

Player Current Peak Pts Elo W L Win % GS 1000 including documented historical predecessor categories Finals 500 including documented historical predecessor categories 250 including documented historical predecessor categories Titles
Kayla Day #119 #84 847 1,638 11 31 26.2% 0 0 0 0 0 0
Elvina Kalieva #111 #111 697 1,669 4 15 21.1% 0 0 0 0 0 0

Career Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.

Age Kayla Day Elvina Kalieva
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 2016 1–2 33.3% #198 1,540 0 0 — — — — — — —
17 2017 3–5 37.5% #150 1,524 0 0 — — — — — — —
18 2018 0–2 0.0% #313 1,487 0 0 2022 0–1 0.0% #236 1,471 0 0
19 — — — — — — — 2023 0–3 0.0% #198 1,470 0 0
20 — — — — — — — 2024 0–1 0.0% #277 1,487 0 0
22 2022 0–2 0.0% #197 1,534 0 0 2026 4–10 28.6% #111 1,641 0 0
23 2023 3–6 33.3% #87 1,564 0 0 — — — — — — —
24 2024 0–7 0.0% #241 1,435 0 0 — — — — — — —
26 2026 4–7 36.4% #119 1,602 0 0 — — — — — — —

Surface Results by Age

Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.

Age Kayla Day Elvina Kalieva
Yr HardClayGrass Yr HardClayGrass
W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win %
16 2016 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
17 2017 3 4 7 42.9% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
18 2018 0 2 2 0.0% — — — — — — — — 2022 0 1 1 0.0% — — — — — — — —
19 — — — — — — — — — — — — — 2023 0 2 2 0.0% 0 1 1 0.0% — — — —
20 — — — — — — — — — — — — — 2024 0 1 1 0.0% — — — — — — — —
22 2022 0 2 2 0.0% — — — — — — — — 2026 4 7 11 36.4% 0 3 3 0.0% — — — —
23 2023 1 4 5 20.0% 2 2 4 50.0% — — — — — — — — — — — — — — — — —
24 2024 0 3 3 0.0% 0 3 3 0.0% 0 1 1 0.0% — — — — — — — — — — — — —
26 2026 4 5 9 44.4% 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — —
Career — 9 22 31 29.0% 2 7 9 22.2% 0 2 2 0.0% — 4 11 15 26.7% 0 4 4 0.0% — — — —

Performance Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.

Age Kayla Day Elvina Kalieva
Yr Sample Aces/M DFs/M 1st Sv% 1st Pts% 2nd Pts% BP Saved% BP Conv% Svc Pts% Ret Pts% Yr Sample Aces/M DFs/M 1st Sv% 1st Pts% 2nd Pts% BP Saved% BP Conv% Svc Pts% Ret Pts%
16 2016 3/3 1.0 3.7 59.0% 55.2% 30.3% 50.6% 66.7% 44.4% 38.1% — —/— — — — — — — — — —
17 2017 8/8 3.4 5.5 48.8% 66.2% 45.1% 51.9% 31.0% 55.7% 38.9% — —/— — — — — — — — — —
18 2018 2/2 5.0 6.0 48.1% 68.0% 33.7% 50.0% 35.0% 49.8% 33.8% 2022 1/1 5.0 2.0 56.1% 58.2% 41.9% 36.4% 54.5% 51.0% 48.6%
19 — —/— — — — — — — — — — 2023 3/3 1.3 5.0 49.0% 47.0% 42.3% 42.7% 66.7% 43.9% 27.8%
20 — —/— — — — — — — — — — 2024 1/1 2.0 3.0 52.6% 43.3% 55.6% 60.0% 20.0% 49.1% 36.1%
22 2022 2/2 4.0 2.5 66.5% 68.4% 39.1% 56.4% 50.0% 58.6% 36.6% 2026 14/14 4.1 4.6 56.4% 63.7% 43.2% 49.6% 35.8% 54.6% 38.7%
23 2023 9/9 2.2 3.0 58.1% 62.9% 43.8% 57.4% 39.7% 55.0% 39.3% — —/— — — — — — — — — —
24 2024 7/7 3.7 3.3 66.8% 58.5% 42.2% 52.8% 37.1% 55.1% 36.5% — —/— — — — — — — — — —
26 2026 11/11 5.0 3.8 66.2% 64.3% 45.4% 62.5% 55.9% 58.1% 40.0% — —/— — — — — — — — — —
Career — 42/42 3.5 3.9 59.9% 63.1% 42.5% 56.0% 43.5% 55.1% 38.5% — 19/19 3.6 4.4 55.0% 59.7% 43.6% 48.4% 41.1% 52.4% 37.3%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.

Age Kayla Day Elvina Kalieva
Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Pressure+ Schedule Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Pressure+ Schedule
16 2016 1540 107.8 -2.89 +0.53 0.685 42.0% +14 — — 0.0% -4.75 — — — -0.17 — — — — — — — — — — — — — — — —
17 2017 1524 111.0 0.00 -2.37 0.877 47.2% +13 — — 45.0% -0.85 1–3 (25%) — — -0.14 2021 1476 97.6 — — — — — — — — — — — — —
18 2018 1487 91.2 -2.87 -2.16 0.673 41.8% — — — 20.0% -3.20 0–1 — — +0.16 2022 1471 106.7 +1.60 +4.43 0.992 49.8% — — — 33.3% -1.00 0–1 0–1 — -0.08
19 2019 1463 99.5 — — — — — — — — — — — — — 2023 1471 101.1 -3.24 -2.54 0.495 36.1% — — — 0.0% -4.33 — 0–1 — -0.10
20 2020 1450 — — — — — — — — — — — — — — 2024 1488 101.4 +0.71 -3.71 0.709 42.4% — — — 0.0% -3.50 — — — -0.07
21 — — — — — — — — — — — — — — — — 2025 1516 104.8 — — — — — — — — — — — — —
22 2022 1535 99.5 -0.90 -1.76 0.884 47.0% — — — 0.0% -2.00 — 0–1 — +0.44 2026 1642 114.1 -0.93 -3.19 0.852 46.6% -3 -68 — 30.3% -1.49 3–2 (60%) 3–3 (50%) 101.5 -0.26
23 2023 1565 118.9 -0.78 -1.35 0.874 47.7% -48 +5 — 31.6% -0.84 1–0 0–1 — +0.61 — — — — — — — — — — — — — — — —
24 2024 1436 102.7 -2.31 -3.54 0.812 46.2% -2 +63 — 22.2% -1.61 0–4 (0%) 1–3 (25%) 92.8 +0.78 — — — — — — — — — — — — — — — —
25 2025 1476 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
26 2026 1603 131.4 +0.09 -1.33 0.955 49.6% -21 — — 44.0% -0.31 1–3 (25%) 2–3 (40%) 99.1 -0.40 — — — — — — — — — — — — — — — —
Career — 1638 117.4 -0.91 -1.83 0.857 47.1% -11 +30 — 32.6% -1.19 3–11 (21%) 3–8 (27%) 90.7 +3.05 — 1669 109.9 -1.08 -2.71 0.785 44.9% -3 -68 — 25.0% -1.94 3–3 (50%) 3–5 (38%) 99.8 -2.68

Career Rivalries

Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.