H2H data updated: 2026-09-13 00:00 UTC
Compare the head-to-head record, career totals, season-by-season performance, and match log for Aleksandra Krunic vs Kayla Day.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Aleksandra Krunic | 6-4 6-7(5) 6-3 | Kayla Day | Match data | Sep 7, 2024 | Q1 | Guadalajara Open | WTA 500 | Hard |
1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. 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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aleksandra Krunic | #470 | #39 | 1,210 | 1,771 | 87 | 120 | 42.0% | 0 | 0 | 0 | 0 | 2 | 2 |
| Kayla Day | #117 | #84 | 847 | 1,637 | 9 | 29 | 23.7% | 0 | 0 | 0 | 0 | 0 | 0 |
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 | Aleksandra Krunic | Kayla Day | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | — | — | — | — | — | — | — | 2016 | 1–2 | 33.3% | #198 | 1,540 | 0 | 0 |
| 17 | — | — | — | — | — | — | — | 2017 | 3–5 | 37.5% | #150 | 1,524 | 0 | 0 |
| 18 | 2011 | 2–2 | 50.0% | #223 | 1,504 | 0 | 0 | 2018 | 0–2 | 0.0% | #313 | 1,487 | 0 | 0 |
| 19 | 2012 | 2–1 | 66.7% | #165 | 1,525 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 2013 | 0–4 | 0.0% | #151 | 1,463 | 0 | 0 | — | — | — | — | — | — | — |
| 21 | 2014 | 5–6 | 45.5% | #87 | 1,523 | 0 | 0 | — | — | — | — | — | — | — |
| 22 | 2015 | 12–19 | 38.7% | #108 | 1,543 | 0 | 0 | 2022 | 0–2 | 0.0% | #197 | 1,534 | 0 | 0 |
| 23 | 2016 | 4–12 | 25.0% | #144 | 1,595 | 0 | 0 | 2023 | 3–6 | 33.3% | #87 | 1,564 | 0 | 0 |
| 24 | 2017 | 20–13 | 60.6% | #54 | 1,753 | 0 | 1 | 2024 | 0–7 | 0.0% | #241 | 1,435 | 0 | 0 |
| 25 | 2018 | 20–23 | 46.5% | #55 | 1,713 | 0 | 2 | — | — | — | — | — | — | — |
| 26 | 2019 | 5–14 | 26.3% | #163 | 1,556 | 0 | 2 | 2026 | 2–5 | 28.6% | #117 | 1,604 | 0 | 0 |
| 28 | 2021 | 6–6 | 50.0% | #128 | 1,643 | 0 | 2 | — | — | — | — | — | — | — |
| 29 | 2022 | 9–10 | 47.4% | #115 | 1,635 | 0 | 2 | — | — | — | — | — | — | — |
| 31 | 2024 | 2–7 | 22.2% | #286 | 1,603 | 0 | 2 | — | — | — | — | — | — | — |
| 32 | 2025 | 0–3 | 0.0% | #468 | 1,565 | 0 | 2 | — | — | — | — | — | — | — |
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 | Aleksandra Krunic | Kayla Day | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Yr | Hard | Clay | Grass | |||||||||||||||||||
| 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 | 2011 | 1 | 1 | 2 | 50.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | 2018 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| 19 | 2012 | 2 | 1 | 3 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2013 | 0 | 3 | 3 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2014 | 4 | 5 | 9 | 44.4% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2015 | 6 | 12 | 18 | 33.3% | 3 | 5 | 8 | 37.5% | 3 | 2 | 5 | 60.0% | 2022 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| 23 | 2016 | 1 | 5 | 6 | 16.7% | 2 | 5 | 7 | 28.6% | 1 | 2 | 3 | 33.3% | 2023 | 1 | 4 | 5 | 20.0% | 2 | 2 | 4 | 50.0% | — | — | — | — |
| 24 | 2017 | 11 | 8 | 19 | 57.9% | 9 | 5 | 14 | 64.3% | — | — | — | — | 2024 | 0 | 3 | 3 | 0.0% | 0 | 3 | 3 | 0.0% | 0 | 1 | 1 | 0.0% |
| 25 | 2018 | 8 | 15 | 23 | 34.8% | 6 | 6 | 12 | 50.0% | 6 | 2 | 8 | 75.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2019 | 3 | 8 | 11 | 27.3% | 2 | 4 | 6 | 33.3% | 0 | 2 | 2 | 0.0% | 2026 | 2 | 3 | 5 | 40.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% |
| 28 | 2021 | 3 | 4 | 7 | 42.9% | 3 | 2 | 5 | 60.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2022 | 2 | 3 | 5 | 40.0% | 6 | 4 | 10 | 60.0% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 2024 | 0 | 4 | 4 | 0.0% | 0 | 2 | 2 | 0.0% | 2 | 1 | 3 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 32 | 2025 | — | — | — | — | 0 | 3 | 3 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 41 | 69 | 110 | 37.3% | 33 | 39 | 72 | 45.8% | 13 | 12 | 25 | 52.0% | — | 7 | 20 | 27 | 25.9% | 2 | 7 | 9 | 22.2% | 0 | 2 | 2 | 0.0% |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 187/204 of Aleksandra Krunic's and 38/38 of Kayla Day's main draw matches. 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 | Aleksandra Krunic | Kayla Day | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2011 | 2/4 | 3.0 | 1.0 | 64.4% | 78.7% | 70.1% | 50.0% | 58.3% | 75.8% | 52.6% | 2018 | 2/2 | 5.0 | 6.0 | 48.1% | 68.0% | 33.7% | 50.0% | 35.0% | 49.8% | 33.8% |
| 19 | 2012 | 3/3 | 2.0 | 6.3 | 48.1% | 63.1% | 40.4% | 51.5% | 68.5% | 51.0% | 50.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 20 | 2013 | 4/4 | 1.3 | 4.5 | 48.9% | 59.7% | 50.2% | 45.6% | 42.5% | 54.7% | 42.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 21 | 2014 | 9/11 | 3.2 | 4.1 | 56.7% | 64.0% | 45.1% | 44.4% | 49.5% | 55.7% | 39.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| 22 | 2015 | 23/31 | 2.6 | 2.6 | 57.1% | 60.9% | 48.4% | 49.1% | 45.7% | 54.9% | 37.5% | 2022 | 2/2 | 4.0 | 2.5 | 66.5% | 68.4% | 39.1% | 56.4% | 50.0% | 58.6% | 36.6% |
| 23 | 2016 | 15/16 | 1.3 | 2.3 | 63.0% | 58.0% | 43.8% | 35.6% | 38.2% | 52.8% | 42.1% | 2023 | 9/9 | 2.2 | 3.0 | 58.1% | 62.9% | 43.8% | 57.4% | 39.7% | 55.0% | 39.3% |
| 24 | 2017 | 32/33 | 2.2 | 1.9 | 63.6% | 64.5% | 50.3% | 51.1% | 51.6% | 59.5% | 48.5% | 2024 | 7/7 | 3.7 | 3.3 | 66.8% | 58.5% | 42.2% | 52.8% | 37.1% | 55.1% | 36.5% |
| 25 | 2018 | 40/43 | 1.6 | 2.2 | 63.4% | 61.4% | 49.2% | 52.9% | 39.9% | 56.5% | 43.2% | — | —/— | — | — | — | — | — | — | — | — | — |
| 26 | 2019 | 19/19 | 1.1 | 2.1 | 63.0% | 56.1% | 47.8% | 53.8% | 36.9% | 52.9% | 39.4% | 2026 | 7/7 | 4.0 | 3.4 | 65.3% | 59.9% | 47.4% | 52.6% | 46.8% | 55.8% | 40.7% |
| 28 | 2021 | 12/12 | 2.0 | 1.5 | 57.1% | 64.4% | 50.9% | 42.3% | 67.7% | 58.8% | 44.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| 29 | 2022 | 19/19 | 1.8 | 2.7 | 58.8% | 62.4% | 50.4% | 58.2% | 48.6% | 57.7% | 44.1% | — | —/— | — | — | — | — | — | — | — | — | — |
| 31 | 2024 | 9/9 | 1.8 | 2.6 | 61.6% | 55.9% | 46.5% | 47.2% | 47.4% | 52.4% | 40.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 187/207 | 1.9 | 2.4 | 60.8% | 61.4% | 48.7% | 49.8% | 46.4% | 56.3% | 43.0% | — | 38/38 | 3.2 | 3.8 | 59.1% | 62.2% | 42.6% | 53.5% | 41.1% | 54.4% | 38.4% |
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 | Aleksandra Krunic | Kayla Day | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 18 | 2011 | 1504 | 105.6 | +1.42 | +0.02 | 2.172 | 63.5% | — | — | — | 33.3% | +0.33 | — | — | — | +0.40 | 2018 | 1487 | 91.2 | -2.87 | -2.16 | 0.673 | 41.8% | — | — | — | 20.0% | -3.20 | 0–1 | — | — | +0.16 |
| 19 | 2012 | 1526 | 101.6 | -1.43 | +0.94 | 1.036 | 51.0% | +12 | — | — | 62.5% | +1.00 | 1–1 | 1–2 (33%) | — | +0.27 | 2019 | 1463 | 99.5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2013 | 1463 | 96.7 | -1.74 | -1.39 | 0.941 | 48.2% | +24 | — | — | 27.3% | -1.37 | 0–3 (0%) | 1–1 | — | +0.48 | 2020 | 1450 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2014 | 1524 | 119.6 | -0.18 | -0.41 | 0.902 | 48.4% | +2 | — | — | 46.2% | -0.46 | 2–2 (50%) | 1–0 | — | +0.31 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2015 | 1543 | 109.3 | -2.03 | -3.19 | 0.832 | 46.3% | -35 | -23 | +122 | 40.0% | -0.91 | 4–4 (50%) | 6–2 (75%) | 104.3 | +0.06 | 2022 | 1535 | 99.5 | -0.90 | -1.76 | 0.884 | 47.0% | — | — | — | 0.0% | -2.00 | — | 0–1 | — | +0.44 |
| 23 | 2016 | 1595 | 118.6 | -1.15 | -1.51 | 0.893 | 47.6% | -54 | +15 | +43 | 27.3% | -1.30 | 0–1 | 1–1 | — | -1.00 | 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 | 2017 | 1753 | 130.9 | +2.13 | +3.51 | 1.197 | 53.9% | -68 | +21 | — | 59.2% | +0.68 | 3–4 (43%) | 1–1 | — | +0.88 | 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 | 2018 | 1714 | 131.0 | -0.44 | -0.20 | 0.992 | 49.5% | -69 | +26 | +49 | 44.3% | -0.43 | 8–5 (62%) | 5–3 (63%) | 105.6 | -0.57 | 2025 | 1474 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2019 | 1557 | 107.2 | -2.43 | -3.32 | 0.836 | 46.4% | -17 | +146 | — | 27.5% | -1.58 | 1–3 (25%) | 0–1 | — | -0.16 | 2026 | 1604 | 129.8 | -0.05 | +0.23 | 0.921 | 48.5% | -18 | — | — | 35.3% | -0.94 | 1–2 (33%) | 1–1 | — | -0.59 |
| 28 | 2021 | 1644 | 126.9 | +1.13 | +0.71 | 1.067 | 51.3% | -4 | +67 | — | 43.5% | +0.17 | 1–0 | 0–3 (0%) | — | -0.04 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2022 | 1635 | 120.3 | +0.48 | +1.43 | 1.042 | 50.8% | -31 | +63 | +22 | 48.8% | -0.05 | 1–2 (33%) | 1–3 (25%) | 97.2 | -0.11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2023 | 1633 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 2024 | 1604 | 109.4 | -1.80 | -1.53 | 0.858 | 46.5% | -21 | — | +83 | 30.4% | -1.48 | 2–3 (40%) | 1–2 (33%) | 98.5 | -0.04 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 32 | 2025 | 1566 | 106.9 | — | — | — | — | — | +73 | — | 25.0% | -2.50 | 0–2 | — | — | -0.70 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 33 | 2026 | 1551 | 104.1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1772 | 124.4 | -0.34 | -0.21 | 0.983 | 49.6% | -39 | +40 | +64 | 42.5% | -0.51 | 23–30 (43%) | 18–19 (49%) | 97.4 | -0.11 | — | 1637 | 116.0 | -1.05 | -1.59 | 0.842 | 46.7% | -9 | +30 | — | 29.9% | -1.39 | 3–10 (23%) | 2–6 (25%) | 91.1 | +2.87 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Anastasija Sevastova | 1 | 4 | 5 | Aug 8, 2018 | H2H |
| Sorana Cirstea | 0 | 4 | 4 | Jun 29, 2022 | H2H |
| Lesia Tsurenko | 1 | 3 | 4 | May 30, 2019 | H2H |
| Sara Sorribes Tormo | 2 | 2 | 4 | Mar 21, 2019 | H2H |
| Roberta Vinci | 4 | 0 | 4 | May 16, 2018 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Madison Keys | 1 | 2 | 3 | Jun 30, 2026 | H2H |
| Caroline Dolehide | 0 | 2 | 2 | Apr 3, 2024 | H2H |
| Marie Bouzkova | 0 | 2 | 2 | Oct 12, 2023 | H2H |
| Garbiñe Muguruza | 0 | 2 | 2 | Aug 4, 2017 | H2H |
| Shuai Zhang | 0 | 1 | 1 | Aug 15, 2026 | H2H |