H2H data updated: 2026-09-13 00:00 UTC
Na Lae Han holds a 1–0 lead over Dayeon Back in their WTA head-to-head. Across 1 main-draw meeting, Na Lae Han leads 1–0 on hard courts. Most recently, Na Lae Han won the 2022 Korea Open first round 6-1 6-1.
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 |
|---|---|---|---|---|---|---|---|---|
| Na Lae Han | 6-1 6-1 | Dayeon Back | Match data | Sep 22, 2022* | R32 | Korea Open | WTA 250 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Na Lae Han | #973 | #149 | 416 | 1,521 | 4 | 13 | 23.5% | 0 | 0 | 0 | 0 | 0 | 0 |
| Dayeon Back | #268 | #245 | 299 | 1,541 | 1 | 4 | 20.0% | 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 | Na Lae Han | Dayeon Back | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 20 | — | — | — | — | — | — | — | 2022 | 0–1 | 0.0% | #609 | 1,512 | 0 | 0 |
| 21 | 2014 | 1–1 | 50.0% | #313 | 1,510 | 0 | 0 | 2023 | 1–1 | 50.0% | #457 | 1,526 | 0 | 0 |
| 22 | 2015 | 0–1 | 0.0% | #257 | 1,506 | 0 | 0 | 2024 | 0–1 | 0.0% | #316 | 1,506 | 0 | 0 |
| 23 | 2016 | 0–2 | 0.0% | #182 | 1,478 | 0 | 0 | 2025 | 0–1 | 0.0% | #307 | 1,501 | 0 | 0 |
| 24 | 2017 | 1–1 | 50.0% | #256 | 1,477 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | 2018 | 0–1 | 0.0% | #218 | 1,467 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 2019 | 0–1 | 0.0% | #181 | 1,457 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 2020 | 0–1 | 0.0% | #204 | 1,438 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 2021 | 0–1 | 0.0% | #268 | 1,467 | 0 | 0 | — | — | — | — | — | — | — |
| 29 | 2022 | 1–1 | 50.0% | #160 | 1,482 | 0 | 0 | — | — | — | — | — | — | — |
| 30 | 2023 | 1–3 | 25.0% | #321 | 1,428 | 0 | 0 | — | — | — | — | — | — | — |
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 | Na Lae Han | Dayeon Back | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Yr | Hard | |||||||
| W | L | M | Win % | W | L | M | Win % | |||
| 20 | — | — | — | — | — | 2022 | 0 | 1 | 1 | 0.0% |
| 21 | 2014 | 1 | 1 | 2 | 50.0% | 2023 | 1 | 1 | 2 | 50.0% |
| 22 | 2015 | 0 | 1 | 1 | 0.0% | 2024 | 0 | 1 | 1 | 0.0% |
| 23 | 2016 | 0 | 2 | 2 | 0.0% | 2025 | 0 | 1 | 1 | 0.0% |
| 24 | 2017 | 1 | 1 | 2 | 50.0% | — | — | — | — | — |
| 25 | 2018 | 0 | 1 | 1 | 0.0% | — | — | — | — | — |
| 26 | 2019 | 0 | 1 | 1 | 0.0% | — | — | — | — | — |
| 27 | 2020 | 0 | 1 | 1 | 0.0% | — | — | — | — | — |
| 28 | 2021 | 0 | 1 | 1 | 0.0% | — | — | — | — | — |
| 29 | 2022 | 1 | 1 | 2 | 50.0% | — | — | — | — | — |
| 30 | 2023 | 1 | 3 | 4 | 25.0% | — | — | — | — | — |
| Career | — | 4 | 13 | 17 | 23.5% | — | 1 | 4 | 5 | 20.0% |
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 | Na Lae Han | Dayeon Back | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 20 | — | —/— | — | — | — | — | — | — | — | — | — | 2022 | 1/1 | 0.0 | 2.0 | 61.5% | 41.7% | 40.0% | 16.7% | 0.0% | 41.0% | 29.3% |
| 21 | 2014 | 2/2 | 1.0 | 11.5 | 59.5% | 56.8% | 30.6% | 50.2% | 58.1% | 46.2% | 48.8% | 2023 | 2/2 | 2.0 | 3.0 | 54.5% | 51.0% | 38.7% | 48.8% | 27.3% | 45.5% | 39.0% |
| 22 | — | —/— | — | — | — | — | — | — | — | — | — | 2024 | 1/1 | 0.0 | 2.0 | 55.0% | 54.5% | 25.9% | 40.0% | 22.2% | 41.7% | 42.6% |
| 23 | 2016 | 2/2 | 0.0 | 4.0 | 44.4% | 41.3% | 39.7% | 39.6% | 55.0% | 40.4% | 35.5% | 2025 | 1/1 | 0.0 | 7.0 | 55.2% | 59.5% | 30.0% | 33.3% | 23.1% | 46.3% | 46.9% |
| 24 | 2017 | 2/2 | 1.0 | 2.5 | 52.2% | 58.6% | 44.4% | 52.5% | 38.8% | 51.8% | 42.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 25 | 2018 | 1/1 | 0.0 | 6.0 | 71.9% | 57.8% | 32.0% | 41.7% | 50.0% | 50.6% | 47.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 26 | 2019 | 1/1 | 2.0 | 3.0 | 63.7% | 53.4% | 42.4% | 58.3% | 28.6% | 49.5% | 40.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| 27 | 2020 | 1/1 | 1.0 | 6.0 | 70.5% | 51.2% | 27.8% | 33.3% | 33.3% | 44.3% | 38.2% | — | —/— | — | — | — | — | — | — | — | — | — |
| 28 | 2021 | 1/1 | 1.0 | 1.0 | 67.2% | 55.6% | 36.4% | 50.0% | 50.0% | 49.3% | 39.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| 29 | 2022 | 2/2 | 0.0 | 4.0 | 74.5% | 61.2% | 49.0% | 72.2% | 54.2% | 57.6% | 42.3% | — | —/— | — | — | — | — | — | — | — | — | — |
| 30 | 2023 | 4/4 | 0.5 | 3.8 | 70.1% | 49.3% | 43.5% | 47.4% | 33.3% | 47.8% | 35.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 16/17 | 0.6 | 4.7 | 63.4% | 53.2% | 40.0% | 50.1% | 44.2% | 48.5% | 40.4% | — | 5/5 | 0.8 | 3.4 | 56.1% | 51.5% | 34.7% | 37.5% | 20.0% | 44.0% | 39.4% |
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 | Na Lae Han | Dayeon Back | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2022 | 1512 | 97.1 | -1.57 | -1.15 | 0.496 | 35.0% | — | — | — | 0.0% | -5.00 | — | — | — | +0.26 |
| 21 | 2014 | 1510 | 102.2 | -0.91 | +0.97 | 0.907 | 47.4% | — | — | — | 40.0% | -1.00 | 1–0 | 1–0 | — | -0.07 | 2023 | 1527 | 103.2 | -0.33 | -0.69 | 0.715 | 42.4% | — | — | — | 40.0% | -1.60 | 1–0 | 1–0 | — | -0.06 |
| 22 | 2015 | 1506 | 100.4 | — | — | — | — | — | — | — | 0.0% | -5.00 | — | — | — | -0.26 | 2024 | 1507 | 95.1 | -1.39 | -0.55 | 0.731 | 42.2% | — | — | — | 0.0% | -3.50 | — | — | — | +0.37 |
| 23 | 2016 | 1478 | 94.2 | -2.30 | -2.38 | 0.596 | 38.5% | — | — | — | 0.0% | -3.75 | — | — | — | -0.06 | 2025 | 1501 | 102.7 | -2.49 | -0.83 | 0.873 | 46.6% | — | — | — | 0.0% | -2.50 | — | — | — | -0.02 |
| 24 | 2017 | 1477 | 100.5 | -1.50 | -1.39 | 0.889 | 47.2% | — | — | — | 50.0% | -1.25 | — | — | — | 0.00 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 2018 | 1467 | 100.1 | -0.49 | -0.53 | 0.961 | 49.1% | — | — | — | 33.3% | -0.67 | 0–1 | — | — | +0.01 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2019 | 1458 | 99.3 | -0.35 | -4.68 | 0.791 | 45.5% | — | — | — | 0.0% | -3.00 | — | 0–1 | — | +0.02 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2020 | 1439 | 96.5 | -1.03 | -1.27 | 0.685 | 41.4% | — | — | — | 0.0% | -3.00 | — | — | — | +0.05 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2021 | 1467 | 112.8 | -0.35 | -4.00 | 0.768 | 44.4% | — | — | — | 0.0% | -2.00 | — | — | — | +0.06 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2022 | 1483 | 108.1 | +0.54 | +1.12 | 0.997 | 50.5% | — | — | — | 50.0% | +0.50 | — | — | — | +0.02 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2023 | 1428 | 97.5 | -1.38 | -1.53 | 0.685 | 42.3% | -6 | — | — | 30.0% | -2.10 | 1–1 | — | — | -0.08 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1522 | 103.4 | -1.01 | -1.25 | 0.785 | 44.8% | -6 | — | — | 26.3% | -1.90 | 2–2 (50%) | 1–1 | — | -1.82 | — | 1542 | 99.2 | -1.22 | -0.78 | 0.703 | 41.7% | — | — | — | 18.2% | -2.73 | 1–0 | 1–0 | — | +11.00 |
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 |
|---|---|---|---|---|---|
| Arantxa Rus | 0 | 1 | 1 | Oct 12, 2023 | H2H |
| Marketa Vondrousova | 0 | 1 | 1 | Aug 30, 2023 | H2H |
| Heather Watson | 0 | 1 | 1 | Feb 3, 2023 | H2H |
| Elena-Gabriela Ruse | 1 | 0 | 1 | Feb 2, 2023 | H2H |
| Ekaterina Alexandrova | 0 | 1 | 1 | Sep 23, 2022 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Beatriz Haddad Maia | 0 | 1 | 1 | Sep 17, 2025 | H2H |
| Carol Zhao | 0 | 1 | 1 | Sep 19, 2024 | H2H |
| Kimberly Birrell | 0 | 1 | 1 | Oct 13, 2023 | H2H |
| Jelena Ostapenko | 1 | 0 | 1 | Oct 12, 2023 | H2H |
| Na Lae Han | 0 | 1 | 1 | Sep 22, 2022 | H2H |