H2H data updated: 2026-09-14 00:00 UTC
Ana Konjuh holds a 1–0 lead over Kayla Day in their WTA head-to-head. Across 1 main-draw meeting, Ana Konjuh leads 1–0 on hard courts. Most recently, Ana Konjuh won the 2016 New Haven first round 6-0 6-3.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Ana Konjuh | 6-0 6-3 | Kayla Day | Match data | Aug 24, 2016* | R32 | New Haven | Premier → modern equivalent WTA 500 | Hard |
Estimated match date where the exact historical date is unavailable. 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ana Konjuh | #647 | #20 | 1,830 | 1,786 | 84 | 81 | 50.9% | 0 | 0 | 0 | 0 | 1 | 1 |
| 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 | Ana Konjuh | Kayla Day | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | 2014 | 8–6 | 57.1% | #93 | 1,611 | 0 | 0 | 2016 | 1–2 | 33.3% | #198 | 1,540 | 0 | 0 |
| 17 | 2015 | 11–9 | 55.0% | #82 | 1,656 | 0 | 1 | 2017 | 3–5 | 37.5% | #150 | 1,524 | 0 | 0 |
| 18 | 2016 | 19–14 | 57.6% | #47 | 1,683 | 0 | 1 | 2018 | 0–2 | 0.0% | #313 | 1,487 | 0 | 0 |
| 19 | 2017 | 22–18 | 55.0% | #44 | 1,716 | 0 | 1 | — | — | — | — | — | — | — |
| 20 | 2018 | 1–3 | 25.0% | #385 | 1,688 | 0 | 1 | — | — | — | — | — | — | — |
| 21 | 2019 | 0–1 | 0.0% | #1282 | 1,645 | 0 | 1 | — | — | — | — | — | — | — |
| 22 | — | — | — | — | — | — | — | 2022 | 0–2 | 0.0% | #197 | 1,534 | 0 | 0 |
| 23 | 2021 | 17–14 | 54.8% | #67 | 1,690 | 0 | 1 | 2023 | 3–6 | 33.3% | #87 | 1,564 | 0 | 0 |
| 24 | 2022 | 6–13 | 31.6% | #108 | 1,647 | 0 | 1 | 2024 | 0–7 | 0.0% | #241 | 1,435 | 0 | 0 |
| 25 | 2023 | 0–2 | 0.0% | #407 | 1,587 | 0 | 1 | — | — | — | — | — | — | — |
| 26 | — | — | — | — | — | — | — | 2026 | 2–5 | 28.6% | #117 | 1,604 | 0 | 0 |
| 27 | 2025 | 0–1 | 0.0% | — | 1,464 | 0 | 1 | — | — | — | — | — | — | — |
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 | Ana Konjuh | 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 | 2014 | 6 | 5 | 11 | 54.5% | — | — | — | — | 2 | 1 | 3 | 66.7% | 2016 | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — |
| 17 | 2015 | 4 | 6 | 10 | 40.0% | 2 | 2 | 4 | 50.0% | 5 | 1 | 6 | 83.3% | 2017 | 3 | 4 | 7 | 42.9% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 18 | 2016 | 12 | 7 | 19 | 63.2% | 6 | 4 | 10 | 60.0% | 1 | 3 | 4 | 25.0% | 2018 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| 19 | 2017 | 11 | 10 | 21 | 52.4% | 3 | 4 | 7 | 42.9% | 8 | 4 | 12 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2018 | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2019 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2022 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| 23 | 2021 | 9 | 8 | 17 | 52.9% | 8 | 5 | 13 | 61.5% | 0 | 1 | 1 | 0.0% | 2023 | 1 | 4 | 5 | 20.0% | 2 | 2 | 4 | 50.0% | — | — | — | — |
| 24 | 2022 | 6 | 9 | 15 | 40.0% | 0 | 4 | 4 | 0.0% | — | — | — | — | 2024 | 0 | 3 | 3 | 0.0% | 0 | 3 | 3 | 0.0% | 0 | 1 | 1 | 0.0% |
| 25 | 2023 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2026 | 2 | 3 | 5 | 40.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% |
| 27 | 2025 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 49 | 49 | 98 | 50.0% | 19 | 21 | 40 | 47.5% | 16 | 11 | 27 | 59.3% | — | 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 156/165 of Ana Konjuh's and 38/39 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 | Ana Konjuh | 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 | 2014 | 14/14 | 5.4 | 5.8 | 53.2% | 68.0% | 43.3% | 47.2% | 39.0% | 56.7% | 40.4% | 2016 | 3/3 | 1.0 | 3.7 | 59.0% | 55.2% | 30.3% | 50.6% | 66.7% | 44.4% | 38.1% |
| 17 | 2015 | 17/20 | 3.2 | 3.8 | 58.4% | 65.2% | 50.4% | 56.8% | 59.7% | 58.7% | 44.3% | 2017 | 8/8 | 3.4 | 5.5 | 48.8% | 66.2% | 45.1% | 51.9% | 31.0% | 55.7% | 38.9% |
| 18 | 2016 | 28/33 | 3.9 | 5.1 | 53.6% | 70.2% | 45.2% | 57.5% | 47.1% | 58.3% | 43.6% | 2018 | 2/2 | 5.0 | 6.0 | 48.1% | 68.0% | 33.7% | 50.0% | 35.0% | 49.8% | 33.8% |
| 19 | 2017 | 40/40 | 3.6 | 4.7 | 57.7% | 67.7% | 44.6% | 52.8% | 52.3% | 57.9% | 43.3% | — | —/— | — | — | — | — | — | — | — | — | — |
| 20 | 2018 | 4/4 | 3.8 | 3.0 | 62.5% | 57.0% | 35.7% | 58.3% | 24.2% | 48.3% | 40.7% | — | —/— | — | — | — | — | — | — | — | — | — |
| 21 | 2019 | 1/1 | 3.0 | 8.0 | 42.6% | 76.9% | 42.9% | 25.0% | 0.0% | 57.4% | 27.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| 22 | — | —/— | — | — | — | — | — | — | — | — | — | 2022 | 2/2 | 4.0 | 2.5 | 66.5% | 68.4% | 39.1% | 56.4% | 50.0% | 58.6% | 36.6% |
| 23 | 2021 | 31/31 | 3.9 | 7.4 | 59.0% | 62.8% | 42.4% | 54.1% | 48.3% | 54.4% | 44.9% | 2023 | 9/9 | 2.2 | 3.0 | 58.1% | 62.9% | 43.8% | 57.4% | 39.7% | 55.0% | 39.3% |
| 24 | 2022 | 18/19 | 4.5 | 5.7 | 57.5% | 64.9% | 39.5% | 51.1% | 36.4% | 53.9% | 39.7% | 2024 | 7/7 | 3.7 | 3.3 | 66.8% | 58.5% | 42.2% | 52.8% | 37.1% | 55.1% | 36.5% |
| 25 | 2023 | 2/2 | 4.0 | 5.5 | 54.5% | 67.3% | 41.9% | 67.7% | 14.3% | 55.7% | 29.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| 26 | — | —/— | — | — | — | — | — | — | — | — | — | 2026 | 7/8 | 4.0 | 3.4 | 65.3% | 59.9% | 47.4% | 52.6% | 46.8% | 55.8% | 40.7% |
| 27 | 2025 | 1/1 | 0.0 | 8.0 | 42.6% | 60.9% | 48.4% | 42.9% | 33.3% | 53.7% | 36.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 156/165 | 3.9 | 5.4 | 56.8% | 66.3% | 43.9% | 53.7% | 46.7% | 56.5% | 42.7% | — | 38/39 | 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 | Ana Konjuh | 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 | 2014 | 1611 | 123.8 | +0.22 | -1.66 | 0.933 | 48.3% | -10 | — | +44 | 47.4% | -0.24 | 8–2 (80%) | 1–1 | — | -0.76 | 2016 | 1540 | 107.8 | -2.89 | +0.53 | 0.685 | 42.0% | +14 | — | — | 0.0% | -4.75 | — | — | — | -0.17 |
| 17 | 2015 | 1657 | 117.4 | +0.42 | +1.27 | 1.073 | 51.6% | -67 | -102 | +82 | 52.3% | +0.14 | 3–1 (75%) | 1–1 | — | +0.20 | 2017 | 1524 | 111.0 | 0.00 | -2.37 | 0.877 | 47.2% | +13 | — | — | 45.0% | -0.85 | 1–3 (25%) | — | — | -0.14 |
| 18 | 2016 | 1684 | 123.8 | +2.55 | +0.13 | 1.047 | 51.1% | +5 | -132 | -1 | 58.0% | +0.39 | 5–4 (56%) | 3–2 (60%) | 103.1 | +1.16 | 2018 | 1487 | 91.2 | -2.87 | -2.16 | 0.673 | 41.8% | — | — | — | 20.0% | -3.20 | 0–1 | — | — | +0.16 |
| 19 | 2017 | 1716 | 135.7 | +1.25 | +0.51 | 1.028 | 50.5% | -10 | -157 | +78 | 54.1% | +0.13 | 9–6 (60%) | 8–5 (62%) | 104.6 | -0.34 | 2019 | 1463 | 99.5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2018 | 1688 | 106.6 | -1.09 | +0.29 | 0.789 | 44.9% | — | — | — | 33.3% | -1.78 | 0–1 | 1–0 | — | -0.10 | 2020 | 1450 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2019 | 1646 | 96.7 | -2.44 | -2.78 | 0.654 | 42.6% | — | — | — | 0.0% | -2.50 | — | — | — | 0.00 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2020 | 1622 | 97.3 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2022 | 1535 | 99.5 | -0.90 | -1.76 | 0.884 | 47.0% | — | — | — | 0.0% | -2.00 | — | 0–1 | — | +0.44 |
| 23 | 2021 | 1691 | 127.3 | -0.62 | +0.89 | 0.985 | 49.7% | +1 | -22 | — | 52.8% | +0.03 | 6–4 (60%) | 4–4 (50%) | 102.0 | -0.51 | 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 | 2022 | 1647 | 126.6 | -1.90 | -1.85 | 0.861 | 46.8% | +43 | -54 | — | 36.4% | -0.91 | 4–4 (50%) | 2–2 (50%) | 99.5 | -1.32 | 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 | 2023 | 1587 | 109.7 | -2.35 | -4.08 | 0.664 | 42.9% | — | — | — | 33.3% | -1.67 | 0–1 | 1–0 | — | -0.11 | 2025 | 1474 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2024 | 1554 | 99.4 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2026 | 1604 | 129.8 | -0.29 | -0.02 | 0.921 | 48.5% | -18 | — | — | 35.3% | -0.94 | 1–2 (33%) | 1–1 | — | -0.59 |
| 27 | 2025 | 1465 | 98.2 | +2.05 | -0.61 | 0.785 | 44.2% | — | — | — | 0.0% | -3.00 | — | — | — | -0.13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2026 | 1446 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1786 | 128.7 | +0.44 | +0.04 | 0.982 | 49.6% | -3 | -88 | +62 | 50.3% | -0.09 | 35–23 (60%) | 21–15 (58%) | 109.5 | -1.16 | — | 1637 | 116.0 | -1.09 | -1.64 | 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 |
|---|---|---|---|---|---|
| Kristina Mladenovic | 2 | 2 | 4 | Sep 17, 2021 | H2H |
| Elina Svitolina | 1 | 2 | 3 | Jan 3, 2018 | H2H |
| Dominika Cibulkova | 1 | 2 | 3 | Aug 16, 2017 | H2H |
| Kirsten Flipkens | 1 | 2 | 3 | Aug 9, 2017 | H2H |
| Roberta Vinci | 1 | 2 | 3 | Aug 25, 2016 | 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 |