H2H data updated: 2026-09-23 00:00 UTC
Compare the head-to-head record, career totals, season-by-season performance, and match log for Kayla Day vs Hanyu Guo.
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 |
|---|---|---|---|---|---|---|---|---|
| Kayla Day | 7-5 6-2 | Hanyu Guo | Match data | Aug 1, 2026 | Q1 | Canadian Open | WTA 1000 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kayla Day | #118 | #84 | 847 | 1,637 | 10 | 30 | 25.0% | 0 | 0 | 0 | 0 | 0 | 0 |
| Hanyu Guo | #235 | #156 | 493 | 1,622 | 2 | 10 | 16.7% | 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 | Kayla Day | Hanyu Guo | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2018 | 0–2 | 0.0% | #313 | 1,487 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | — | — | — | — | — | — | — | 2017 | 0–1 | 0.0% | #304 | 1,520 | 0 | 0 |
| 20 | — | — | — | — | — | — | — | 2018 | 0–1 | 0.0% | #422 | 1,465 | 0 | 0 |
| 22 | 2022 | 0–2 | 0.0% | #197 | 1,534 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | 2023 | 3–6 | 33.3% | #87 | 1,564 | 0 | 0 | — | — | — | — | — | — | — |
| 24 | 2024 | 0–7 | 0.0% | #241 | 1,435 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | — | — | — | — | — | — | — | 2023 | 0–2 | 0.0% | #415 | 1,422 | 0 | 0 |
| 26 | 2026 | 3–6 | 33.3% | #118 | 1,614 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | — | — | — | — | — | — | — | 2025 | 2–5 | 28.6% | #171 | 1,547 | 0 | 0 |
| 28 | — | — | — | — | — | — | — | 2026 | 0–1 | 0.0% | #235 | 1,545 | 0 | 0 |
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 | Hanyu Guo | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2018 | 1487 | 91.2 | -2.87 | -2.16 | 0.673 | 41.8% | — | — | — | 20.0% | -3.20 | 0–1 | — | — | +0.16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2019 | 1463 | 99.5 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2017 | 1521 | 105.5 | +2.91 | 0.00 | 0.711 | 45.0% | — | — | — | 0.0% | -2.50 | — | 0–1 | — | -0.20 |
| 20 | 2020 | 1450 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2018 | 1466 | 95.9 | +0.43 | -1.68 | 0.853 | 46.2% | — | — | — | 0.0% | -3.00 | — | — | — | -0.08 |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2019 | 1432 | 95.1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2022 | 1535 | 99.5 | -0.90 | -1.76 | 0.884 | 47.0% | — | — | — | 0.0% | -2.00 | — | 0–1 | — | +0.44 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | 1474 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2023 | 1423 | 102.3 | -0.24 | +0.75 | 0.732 | 43.1% | — | — | — | 0.0% | -3.75 | — | — | — | -0.05 |
| 26 | 2026 | 1615 | 131.4 | +0.05 | -0.15 | 0.945 | 49.1% | -20 | — | — | 40.9% | -0.50 | 1–3 (25%) | 2–3 (40%) | 99.1 | -0.47 | 2024 | 1414 | 90.9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2025 | 1548 | 129.7 | -3.03 | +1.00 | 0.853 | 46.1% | +25 | — | — | 35.3% | -0.88 | 1–2 (33%) | 1–1 | — | +0.16 |
| 28 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2026 | 1546 | 99.9 | -1.34 | -0.98 | 0.894 | 47.5% | — | — | — | 33.3% | -0.33 | 0–1 | 0–1 | — | -0.06 |
| Career | — | 1637 | 116.8 | -0.97 | -1.59 | 0.851 | 46.9% | -10 | +30 | — | 31.5% | -1.26 | 3–11 (21%) | 3–8 (27%) | 90.7 | +3.03 | — | 1623 | 112.3 | -1.36 | +0.38 | 0.820 | 45.5% | +25 | — | — | 25.0% | -1.50 | 1–3 (25%) | 1–3 (25%) | — | -1.92 |
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 |
|---|---|---|---|---|---|
| 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 |
| Liudmila Samsonova | 0 | 1 | 1 | Sep 17, 2026 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Mccartney Kessler | 0 | 1 | 1 | May 25, 2026 | H2H |
| Zhuoxuan Bai | 0 | 1 | 1 | Oct 30, 2025 | H2H |
| Alina Korneeva | 1 | 0 | 1 | Oct 27, 2025 | H2H |
| Anna Bondar | 0 | 1 | 1 | Oct 21, 2025 | H2H |
| Liudmila Samsonova | 0 | 1 | 1 | Oct 14, 2025 | H2H |