Player data updated: 2026-09-01 02:16 UTC
Dayeon Back
Instagram profile (opens in new tab)Dayeon Back represents Korea (South) on the WTA Tour and is ranked No. 268, with a career high of No. 245. In TennisDB's records, Dayeon Back has a career record of 1–4 and no singles titles.
Peak ranking
245 (Jul 27, 2026)
Elo peak
1542 (19th percentile)
Career record
1–4 (20.0%)
Career titles
0
Prize money
$160,862
Records cover recorded main-draw singles results in TennisDB's WTA event archive, including credited walkovers; qualifying is shown separately below.
WTA Matches full match log →
| Opponent | Score | Result | H2H | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|---|
| Beatriz Haddad Maia | 4-6 3-6 | L | H2H | Match data | Sep 17, 2025 | R32 | Korea Open | WTA 500 | Hard |
| Carol Zhao | 4-6 1-6 | L | H2H | Match data | Sep 19, 2024* | R32 | Korea Open | WTA 500 | Hard |
| Kimberly Birrell | 0-6 1-6 | L | H2H | Match data | Oct 13, 2023* | R16 | Korea Open | WTA 250 | Hard |
| Jelena Ostapenko | 3-6 6-1 7-6(4) | W | H2H | Match data | Oct 12, 2023* | R32 | Korea Open | WTA 250 | Hard |
| Na Lae Han | 1-6 1-6 | L | H2H | Match data | Sep 22, 2022* | R32 | Korea Open | WTA 250 | Hard |
Rivals all rivalries →
| 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 % | |||
| 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 | 4 | 5 | 20.0% | — | — | — | — | — | — | — | — | 1 | 4 | 5 | 20.0% |
Career Results by Opponent Rank
| Season | Age | 1-10 | 11-30 | 31-100 | 100+ | Total | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | ||
| 2022 | 20 | 0 | 0 | — | — | 0 | 0 | — | — | 0 | 0 | — | — | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% |
| 2023 | 21 | 0 | 0 | — | — | 1 | 0 | 1 | 100.0% | 0 | 0 | — | — | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% |
| 2024 | 22 | 0 | 0 | — | — | 0 | 0 | — | — | 0 | 0 | — | — | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% |
| 2025 | 23 | 0 | 0 | — | — | 0 | 1 | 1 | 0.0% | 0 | 0 | — | — | 0 | 0 | — | — | 0 | 1 | 1 | 0.0% |
| Career | 0 | 0 | — | — | 1 | 1 | 2 | 50.0% | 0 | 0 | — | — | 0 | 3 | 3 | 0.0% | 1 | 4 | 5 | 20.0% | |
Performance Stats
| Season | Age | Sample | Aces/M | DFs/M | 1st Sv% | 1st Sv Pts% | 2nd Sv Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | 20 | 1/1 | 0.0 | 2.0 | 61.5% | 41.7% | 40.0% | 16.7% | 0.0% | 41.0% | 29.3% |
| 2023 | 21 | 2/2 | 2.0 | 3.0 | 54.5% | 51.0% | 38.7% | 48.8% | 27.3% | 45.5% | 39.0% |
| 2024 | 22 | 1/1 | 0.0 | 2.0 | 55.0% | 54.5% | 25.9% | 40.0% | 22.2% | 41.7% | 42.6% |
| 2025 | 23 | 1/1 | 0.0 | 7.0 | 55.2% | 59.5% | 30.0% | 33.3% | 23.1% | 46.3% | 46.9% |
| Career | 5/5 | 0.8 | 3.4 | 56.1% | 51.5% | 34.7% | 37.5% | 20.0% | 44.0% | 39.4% |
Advanced Stats
| Season | Age | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | 20 | 1512 | 97.1 | -1.57 | -1.15 | 0.496 | 35.0% | — | — | — | 0.0% | -5.00 | — | — | — | +0.26 |
| 2023 | 21 | 1527 | 103.2 | -0.33 | -0.69 | 0.715 | 42.4% | — | — | — | 40.0% | -1.60 | 1–0 | 1–0 | — | -0.06 |
| 2024 | 22 | 1507 | 95.1 | -1.39 | -0.55 | 0.731 | 42.2% | — | — | — | 0.0% | -3.50 | — | — | — | +0.37 |
| 2025 | 23 | 1501 | 102.7 | -2.49 | -0.83 | 0.873 | 46.6% | — | — | — | 0.0% | -2.50 | — | — | — | -0.02 |
| Career | 1542 | 99.2 | -1.22 | -0.78 | 0.703 | 41.7% | — | — | — | 18.2% | -2.73 | 1–0 | 1–0 | — | +11.00 |
Tournament Results by Category
WTA 500
| Season | Age | KOR | W-L Win % |
|---|---|---|---|
| 2024 | 22 | R32 | 0–1 (0%) |
| 2025 | 23 | R32 | 0–1 (0%) |
| W-L | 0–2 (0%) |
0–2 (0%) |
WTA 250
| Season | Age | KOR | W-L Win % |
|---|---|---|---|
| 2022 | 20 | R32 | 2–1 (67%) |
| 2023 | 21 | R16 | 1–1 (50%) |
| W-L | 3–2 (60%) |
3–2 (60%) |
Results show the best round reached per tournament and season.
WTA Ranking History full ranking history →
Career high
245
Career-high date
Jul 27, 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 | — | — | — | — | 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 | 305 | 307 |
| 2026 | 24 | 311 | 312 | 342 | 343 | 291 | 264 | 245 | 268 | — | — | — | — |
Similar Players
Other WTA players with comparable peak level, era, career record, and career scale.
| Player | Country | Peak Rank | Peak Elo | Grand Slams | Titles | M | W | L | Win % | Years | Match Log |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mei Yamaguchi | JPN | 242 | 1,589 | 0 | 0 | 4 | 1 | 3 | 25.0% | 2024–2025 | Match log |
| Wushuang Zheng | CHN | 237 | 1,500 | 0 | 0 | 6 | 1 | 5 | 16.7% | 2016–2025 | Match log |
| Eudice Chong | HKG | 213 | 1,515 | 0 | 0 | 5 | 1 | 4 | 20.0% | 2018–2025 | Match log |
| Matilde Paoletti | ITA | 262 | 1,566 | 0 | 0 | 4 | 1 | 3 | 25.0% | 2022–2023 | Match log |
| Lina Glushko | ISR | 201 | 1,536 | 0 | 0 | 5 | 1 | 4 | 20.0% | 2022–2025 | Match log |
| Carlota Martinez Cirez | ESP | 220 | 1,516 | 0 | 0 | 4 | 1 | 3 | 25.0% | 2016–2026 | Match log |
| Amarissa Toth | HUN | 236 | 1,534 | 0 | 0 | 3 | 1 | 2 | 33.3% | 2023–2024 | Match log |
| Irene Burillo | ESP | 207 | 1,502 | 0 | 0 | 8 | 2 | 6 | 25.0% | 2022–2026 | Match log |
| Cadence Brace | CAN | 182 | 1,583 | 0 | 0 | 5 | 1 | 4 | 20.0% | 2022–2026 | Match log |
| Kyoka Okamura | JPN | 178 | 1,575 | 0 | 0 | 5 | 1 | 4 | 20.0% | 2022–2025 | Match log |
| Berfu Cengiz | TUR | 190 | 1,500 | 0 | 0 | 6 | 1 | 5 | 16.7% | 2020–2026 | Match log |
| Victoria Rodriguez | MEX | 216 | 1,500 | 0 | 0 | 9 | 1 | 8 | 11.1% | 2016–2025 | Match log |
Frequently Asked Questions
- How old is Dayeon Back?
- Dayeon Back is 24 years old, born on January 24, 2002.
- Which country does Dayeon Back represent?
- Dayeon Back represents Korea (South) in TennisDB's WTA records.
- Is Dayeon Back left-handed or right-handed?
- Dayeon Back plays right-handed.
- 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?
- TennisDB does not group any of Dayeon Back's titles under the modern WTA 1000 category.
- What is Dayeon Back's highest WTA ranking?
- Dayeon Back's career-high WTA singles ranking is world No. 245, first achieved on July 27, 2026.
- What is Dayeon Back's career win-loss record?
- Dayeon Back has a career WTA singles record of 1 wins and 4 losses (20.0%).
- How much career prize money has Dayeon Back earned?
- Dayeon Back has earned at least $160,862 in career prize money from professional tennis.
- Which seasons of Dayeon Back's career appear in TennisDB?
- Dayeon Back appears in TennisDB's WTA main-tour match records from 2022 through 2025.
- Who has Dayeon Back faced most often?
- Dayeon Back's most frequent opponent is Beatriz Haddad Maia, with a head-to-head record of 0–1 across 1 meeting.