H2H data updated: 2026-09-13 00:00 UTC
Eugenie Bouchard holds a 1–0 lead over Kayla Day in their WTA head-to-head. Across 1 main-draw meeting, Eugenie Bouchard leads 1–0 on hard courts. Most recently, Eugenie Bouchard won the 2022 Guadalajara Open first round 7-5 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 |
|---|---|---|---|---|---|---|---|---|
| Eugenie Bouchard | 7-5 6-3 | Kayla Day | Match data | Oct 19, 2022* | R64 | Guadalajara Open | WTA 1000 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Eugenie Bouchard | #1,002 | #5 | 4,793 | 1,927 | 158 | 147 | 51.8% | 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 | Eugenie Bouchard | 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 | 2011 | 1–3 | 25.0% | #305 | 1,492 | 0 | 0 | 2017 | 3–5 | 37.5% | #150 | 1,524 | 0 | 0 |
| 18 | 2012 | 5–4 | 55.6% | #147 | 1,546 | 0 | 0 | 2018 | 0–2 | 0.0% | #313 | 1,487 | 0 | 0 |
| 19 | 2013 | 25–17 | 59.5% | #32 | 1,751 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 2014 | 39–23 | 62.9% | #7 | 1,862 | 0 | 1 | — | — | — | — | — | — | — |
| 21 | 2015 | 12–17 | 41.4% | #49 | 1,701 | 0 | 1 | — | — | — | — | — | — | — |
| 22 | 2016 | 29–24 | 54.7% | #46 | 1,697 | 0 | 1 | 2022 | 0–2 | 0.0% | #197 | 1,534 | 0 | 0 |
| 23 | 2017 | 11–20 | 35.5% | #81 | 1,601 | 0 | 1 | 2023 | 3–6 | 33.3% | #87 | 1,564 | 0 | 0 |
| 24 | 2018 | 11–13 | 45.8% | #87 | 1,670 | 0 | 1 | 2024 | 0–7 | 0.0% | #241 | 1,435 | 0 | 0 |
| 25 | 2019 | 4–10 | 28.6% | #215 | 1,617 | 0 | 1 | — | — | — | — | — | — | — |
| 26 | 2020 | 10–4 | 71.4% | #141 | 1,713 | 0 | 1 | 2026 | 2–5 | 28.6% | #117 | 1,604 | 0 | 0 |
| 27 | 2021 | 4–3 | 57.1% | #253 | 1,704 | 0 | 1 | — | — | — | — | — | — | — |
| 28 | 2022 | 3–5 | 37.5% | #326 | 1,632 | 0 | 1 | — | — | — | — | — | — | — |
| 29 | 2023 | 3–3 | 50.0% | #287 | 1,637 | 0 | 1 | — | — | — | — | — | — | — |
| 31 | 2025 | 1–1 | 50.0% | — | 1,610 | 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 | Eugenie Bouchard | 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 | 2011 | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | 2017 | 3 | 4 | 7 | 42.9% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 18 | 2012 | 5 | 4 | 9 | 55.6% | — | — | — | — | — | — | — | — | 2018 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| 19 | 2013 | 15 | 11 | 26 | 57.7% | 8 | 4 | 12 | 66.7% | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2014 | 18 | 16 | 34 | 52.9% | 15 | 5 | 20 | 75.0% | 6 | 2 | 8 | 75.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2015 | 10 | 9 | 19 | 52.6% | 1 | 4 | 5 | 20.0% | 1 | 4 | 5 | 20.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2016 | 20 | 16 | 36 | 55.6% | 4 | 4 | 8 | 50.0% | 5 | 4 | 9 | 55.6% | 2022 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| 23 | 2017 | 7 | 14 | 21 | 33.3% | 4 | 3 | 7 | 57.1% | 0 | 3 | 3 | 0.0% | 2023 | 1 | 4 | 5 | 20.0% | 2 | 2 | 4 | 50.0% | — | — | — | — |
| 24 | 2018 | 7 | 10 | 17 | 41.2% | 3 | 2 | 5 | 60.0% | 1 | 1 | 2 | 50.0% | 2024 | 0 | 3 | 3 | 0.0% | 0 | 3 | 3 | 0.0% | 0 | 1 | 1 | 0.0% |
| 25 | 2019 | 4 | 7 | 11 | 36.4% | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2020 | 2 | 1 | 3 | 66.7% | 8 | 3 | 11 | 72.7% | — | — | — | — | 2026 | 2 | 3 | 5 | 40.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% |
| 27 | 2021 | 4 | 3 | 7 | 57.1% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2022 | 3 | 5 | 8 | 37.5% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2023 | 1 | 1 | 2 | 50.0% | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 2025 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 98 | 101 | 199 | 49.2% | 45 | 29 | 74 | 60.8% | 15 | 17 | 32 | 46.9% | — | 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 282/306 of Eugenie Bouchard'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 | Eugenie Bouchard | 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 | 2011 | 4/4 | 2.0 | 2.5 | 64.1% | 64.4% | 38.1% | 59.9% | 56.7% | 54.8% | 34.9% | 2017 | 8/8 | 3.4 | 5.5 | 48.8% | 66.2% | 45.1% | 51.9% | 31.0% | 55.7% | 38.9% |
| 18 | 2012 | 9/9 | 3.7 | 3.1 | 58.4% | 66.2% | 47.0% | 58.4% | 39.6% | 58.4% | 43.0% | 2018 | 2/2 | 5.0 | 6.0 | 48.1% | 68.0% | 33.7% | 50.0% | 35.0% | 49.8% | 33.8% |
| 19 | 2013 | 34/42 | 2.3 | 2.6 | 56.8% | 64.2% | 47.1% | 51.2% | 44.0% | 56.7% | 46.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 20 | 2014 | 57/62 | 2.6 | 3.1 | 60.4% | 66.0% | 47.6% | 54.0% | 50.3% | 58.5% | 46.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 21 | 2015 | 25/29 | 1.7 | 4.0 | 60.1% | 62.4% | 47.7% | 49.2% | 48.0% | 56.8% | 41.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 22 | 2016 | 50/54 | 2.3 | 3.2 | 60.4% | 63.6% | 48.8% | 50.2% | 45.9% | 57.8% | 44.7% | 2022 | 2/2 | 4.0 | 2.5 | 66.5% | 68.4% | 39.1% | 56.4% | 50.0% | 58.6% | 36.6% |
| 23 | 2017 | 28/31 | 2.3 | 3.5 | 58.3% | 58.7% | 45.0% | 49.3% | 48.3% | 53.0% | 42.7% | 2023 | 9/9 | 2.2 | 3.0 | 58.1% | 62.9% | 43.8% | 57.4% | 39.7% | 55.0% | 39.3% |
| 24 | 2018 | 24/24 | 3.0 | 3.6 | 59.2% | 63.1% | 44.0% | 57.2% | 46.4% | 55.5% | 44.2% | 2024 | 7/7 | 3.7 | 3.3 | 66.8% | 58.5% | 42.2% | 52.8% | 37.1% | 55.1% | 36.5% |
| 25 | 2019 | 14/14 | 1.3 | 4.0 | 60.7% | 60.7% | 42.3% | 50.0% | 54.0% | 53.3% | 42.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| 26 | 2020 | 14/14 | 2.8 | 1.8 | 65.5% | 65.3% | 49.8% | 61.5% | 49.6% | 59.8% | 45.5% | 2026 | 7/7 | 4.0 | 3.4 | 65.3% | 59.9% | 47.4% | 52.6% | 46.8% | 55.8% | 40.7% |
| 27 | 2021 | 7/7 | 2.7 | 2.9 | 62.7% | 65.2% | 45.7% | 49.6% | 50.9% | 57.9% | 46.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 28 | 2022 | 8/8 | 2.8 | 1.5 | 57.0% | 61.4% | 51.7% | 60.8% | 45.3% | 57.3% | 42.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 29 | 2023 | 6/6 | 2.3 | 1.7 | 66.8% | 62.6% | 52.8% | 41.7% | 51.9% | 59.0% | 43.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 31 | 2025 | 2/2 | 1.0 | 2.0 | 62.0% | 59.5% | 47.9% | 54.2% | 37.4% | 55.1% | 41.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 282/306 | 2.4 | 3.1 | 60.0% | 63.5% | 47.1% | 52.6% | 47.7% | 56.9% | 44.5% | — | 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 | Eugenie Bouchard | 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 | 2011 | 1493 | 102.7 | -1.04 | -2.27 | 0.773 | 45.8% | +18 | — | — | 33.3% | -1.78 | 0–1 | 1–0 | — | -0.10 | 2017 | 1524 | 111.0 | 0.00 | -2.37 | 0.877 | 47.2% | +13 | — | — | 45.0% | -0.85 | 1–3 (25%) | — | — | -0.14 |
| 18 | 2012 | 1546 | 114.3 | +1.12 | -0.43 | 1.033 | 50.7% | +7 | — | — | 52.4% | +0.38 | 2–1 (67%) | 1–2 (33%) | — | +0.18 | 2018 | 1487 | 91.2 | -2.87 | -2.16 | 0.673 | 41.8% | — | — | — | 20.0% | -3.20 | 0–1 | — | — | +0.16 |
| 19 | 2013 | 1752 | 141.5 | +1.07 | +2.65 | 1.074 | 51.5% | -37 | -74 | -156 | 58.2% | +0.47 | 7–9 (44%) | 8–1 (89%) | 106.1 | -1.18 | 2019 | 1463 | 99.5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2014 | 1863 | 150.8 | +2.70 | +3.29 | 1.122 | 52.4% | -96 | +19 | -107 | 61.4% | +0.82 | 10–8 (56%) | 7–5 (58%) | 104.2 | -1.19 | 2020 | 1450 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2015 | 1702 | 123.0 | -1.20 | +0.51 | 0.961 | 49.3% | +34 | +67 | -27 | 50.0% | -0.02 | 3–7 (30%) | 6–5 (55%) | 94.8 | +1.50 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2016 | 1697 | 133.5 | +1.68 | +1.09 | 1.060 | 51.1% | -16 | +85 | -6 | 54.6% | +0.26 | 8–7 (53%) | 4–2 (67%) | 99.4 | -1.41 | 2022 | 1535 | 99.5 | -0.90 | -1.76 | 0.884 | 47.0% | — | — | — | 0.0% | -2.00 | — | 0–1 | — | +0.44 |
| 23 | 2017 | 1602 | 127.4 | -1.89 | -0.77 | 0.909 | 47.9% | -17 | +221 | +25 | 40.3% | -0.82 | 3–9 (25%) | 4–3 (57%) | 93.2 | -0.95 | 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 | 2018 | 1670 | 127.3 | -0.75 | +1.08 | 0.994 | 49.8% | -14 | +151 | — | 42.2% | -0.31 | 2–1 (67%) | 5–0 (100%) | 106.6 | +0.16 | 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 | 2019 | 1617 | 127.0 | -1.49 | -0.31 | 0.919 | 47.9% | +26 | — | — | 38.2% | -0.62 | 1–5 (17%) | 0–3 (0%) | — | -0.76 | 2025 | 1474 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2020 | 1713 | 127.8 | +1.82 | +1.44 | 1.130 | 52.7% | -64 | +114 | — | 65.7% | +1.00 | 4–3 (57%) | 2–3 (40%) | 100.7 | +0.41 | 2026 | 1604 | 129.8 | -0.05 | +0.23 | 0.921 | 48.5% | -18 | — | — | 35.3% | -0.94 | 1–2 (33%) | 1–1 | — | -0.59 |
| 27 | 2021 | 1704 | 112.6 | +0.44 | +0.05 | 1.114 | 52.1% | -53 | — | — | 53.3% | +0.40 | 1–0 | 1–2 (33%) | — | +0.45 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2022 | 1633 | 117.1 | +0.22 | +0.59 | 0.998 | 50.2% | -38 | — | — | 52.9% | +0.18 | 0–3 (0%) | 3–2 (60%) | 97.2 | +0.57 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2023 | 1637 | 118.3 | +0.17 | -0.98 | 1.060 | 51.3% | — | +151 | — | 53.3% | +0.13 | 1–2 (33%) | 3–1 (75%) | 99.7 | +1.03 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2024 | 1618 | 100.0 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 2025 | 1611 | 113.9 | +1.04 | -0.76 | 0.931 | 48.7% | — | — | — | 50.0% | -0.17 | 1–1 | — | — | 0.00 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1927 | 140.4 | +0.68 | +1.24 | 1.032 | 50.6% | -27 | +65 | -55 | 53.1% | +0.19 | 43–57 (43%) | 45–29 (61%) | 102.0 | -0.43 | — | 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 |
|---|---|---|---|---|---|
| Andrea Petkovic | 2 | 5 | 7 | Oct 19, 2018 | H2H |
| Barbora Strycova | 3 | 4 | 7 | Jun 28, 2017 | H2H |
| Alizé Cornet | 3 | 3 | 6 | Jul 21, 2018 | H2H |
| Angelique Kerber | 4 | 2 | 6 | May 11, 2017 | H2H |
| Simona Halep | 1 | 4 | 5 | Feb 20, 2019 | 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 |