Dayeon Back
Instagram profile (opens in new tab)Peak ranking
260 (Jul 13, 2026)
Elo peak
1528 (14.1%ile)
Career record
1–5 (16.7%)
Career titles
0
Prize money
$153,911
Recent WTA Matches full match log →
| Date | Tournament | Category | Round | Surface | Opponent | Score | Result | H2H | Match |
|---|---|---|---|---|---|---|---|---|---|
| Sep 17, 2025 | Seoul | WTA 250 | R32 | Hard | Beatriz Haddad Maia | 4-6 3-6 | L | H2H | Match data |
| Sep 19, 2024* | Seoul | WTA 250 | R32 | Hard | Carol Zhao | 4-6 1-6 | L | H2H | Match data |
| Oct 13, 2023* | Seoul | WTA 250 | R16 | Hard | Kimberly Birrell | 0-6 1-6 | L | H2H | Match data |
| Oct 12, 2023* | Seoul | WTA 250 | R32 | Hard | Jelena Ostapenko | 3-6 6-1 7-6(4) | W | H2H | Match data |
| Sep 22, 2022* | Seoul | WTA 250 | R32 | Hard | Na Lae Han | 1-6 1-6 | L | H2H | Match data |
Rivals full rivalries list →
| 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 |
Career Results
Career Results by Surface
| Season | Age | Type | Hard | Clay | Grass | Total | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |||
| 2021 | 19 | WTA | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 2022 | 20 | Qualifying | 2 | 0 | 2 | 100.0% | — | — | — | — | — | — | — | — | 2 | 0 | 2 | 100.0% |
| 2022 | 20 | WTA | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 2023 | 21 | WTA | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 2024 | 22 | WTA | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 2025 | 23 | WTA | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| Career | — | — | 1 | 5 | 6 | 16.7% | — | — | — | — | — | — | — | — | 1 | 5 | 6 | 16.7% |
Career Results by Opponent Rank
Advanced Stats
| Season | Age | ELO | ELO % | Hard % | Clay % | Grass % | Set Win % | Set Margin | SoS % | Deep Run % | Dec. Set W% | TB W | TB L | TB W% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 19 | 1484 | 40 | — | — | — | 33.3% | -1.00 | 18 | 0 | — | 0 | 0 | — |
| 2022 | 20 | 1499 | 57 | — | — | — | 0.0% | -5.00 | 13 | 0 | — | 0 | 0 | — |
| 2023 | 21 | 1514 | 64 | — | — | — | 40.0% | -2.25 | 91 | 0 | — | 1 | 0 | — |
| 2024 | 22 | 1495 | 55 | — | — | — | 0.0% | -3.50 | 3 | 0 | — | 0 | 0 | — |
| 2025 | 23 | 1489 | 50 | — | — | — | 0.0% | -2.50 | 93 | 0 | — | 0 | 0 | — |
| Career | 1496 | 53 | 51 | — | — | 21.4% | -2.85 | 44 | 0 | — | 1 | 0 | — |
Tournament Results by Category
WTA Ranking History full ranking history →
Career high
260
Career-high date
Jul 13, 2026
First top 100
—
First top 50
—
First top 20
—
First top 10
—
Ranking History Matrix
| Season | Age | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | 17 | — | — | — | — | — | — | — | — | 959 | 948 | 967 | 973 |
| 2020 | 18 | 978 | 979 | 980 | 980 | — | — | — | 987 | 999 | 1000 | 1006 | 1009 |
| 2021 | 19 | 1011 | 1030 | 1041 | 1041 | 1049 | 1143 | 1152 | 1164 | 1148 | 1167 | 1029 | 1021 |
| 2022 | 20 | 1022 | 1018 | 990 | 953 | 962 | 856 | 829 | 796 | 590 | 594 | 609 | 609 |
| 2023 | 21 | 611 | 599 | 586 | 586 | 531 | 523 | 517 | 499 | 569 | 489 | 480 | 457 |
| 2024 | 22 | 453 | 467 | 451 | 463 | 434 | 347 | 364 | 344 | 334 | 334 | 311 | 316 |
| 2025 | 23 | 321 | 321 | 295 | 299 | 315 | 333 | 305 | 300 | 302 | 318 | 318 | 307 |
| 2026 | 24 | 311 | 312 | 342 | 343 | 291 | 264 | 260 | — | — | — | — | — |
Similar Players
Other WTA players ranked by a composite similarity score over country, era, and peak rank.
| Player | Country | Peak Rank | Peak Elo | Grand Slams | Titles | M | W | L | Win % | Active Years | Match Log |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Su Jeong Jang | KOR | 114 | 1,599 | 0 | 0 | 28 | 7 | 21 | 25.0% | 2013-2024 | Match log |
| Na Lae Han | KOR | 149 | 1,517 | 0 | 0 | 19 | 5 | 14 | 26.3% | 2014-2023 | Match log |
| Boyoung Jeong | KOR | 378 | 1,512 | 0 | 0 | 3 | 1 | 2 | 33.3% | 2021-2022 | Match log |
| Katarzyna Kawa | POL | 112 | 1,720 | 0 | 0 | 44 | 20 | 24 | 45.5% | 2019-2026 | Match log |
| Storm Hunter | AUS | 114 | 1,727 | 0 | 0 | 58 | 18 | 40 | 31.0% | 2014-2026 | Match log |
| Priscilla Hon | AUS | 101 | 1,684 | 0 | 0 | 57 | 17 | 40 | 29.8% | 2016-2026 | Match log |
| Irina Bara | ROU | 104 | 1,620 | 0 | 0 | 50 | 16 | 34 | 32.0% | 2017-2025 | Match log |
| Mai Hontama | JPN | 105 | 1,697 | 0 | 0 | 40 | 15 | 25 | 37.5% | 2021-2026 | Match log |
| Fanny Stollar | HUN | 114 | 1,659 | 0 | 0 | 31 | 14 | 17 | 45.2% | 2017-2024 | Match log |
| Anastasia Gasanova | RUS | 121 | 1,616 | 0 | 0 | 26 | 11 | 15 | 42.3% | 2021-2025 | Match log |
| Katarina Zavatska | UKR | 103 | 1,571 | 0 | 0 | 36 | 10 | 26 | 27.8% | 2017-2024 | Match log |
| Maddison Inglis | AUS | 112 | 1,674 | 0 | 0 | 35 | 10 | 25 | 28.6% | 2016-2026 | Match log |
Frequently Asked Questions
- How old is Dayeon Back?
- Dayeon Back is 24 years old, born on January 24, 2002.
- Which country is Dayeon Back from?
- Dayeon Back is from South Korea.
- How many Grand Slams has Dayeon Back won?
- Dayeon Back has not won a Grand Slam title.
- How many WTA 1000 titles has Dayeon Back won?
- Dayeon Back has not won a WTA 1000 title.
- What is Dayeon Back's highest WTA ranking?
- Dayeon Back's career-high WTA singles ranking is world No. 260, first achieved on July 13, 2026.
- What is Dayeon Back's career win-loss record?
- Dayeon Back has a career WTA singles record of 1 wins and 5 losses (16.7%).
- How much career prize money has Dayeon Back earned?
- Dayeon Back has earned at least $153,911 in career prize money from professional tennis.
- When did Dayeon Back play professional tennis?
- Dayeon Back turned professional in 2021 and was active through 2025.
- Who is Dayeon Back's biggest rival?
- Dayeon Back's most frequent opponent is Beatriz Haddad Maia, with a head-to-head record of 0–1 across 1 meeting.