Player data updated: 2026-10-17 16:37 UTC
Dayeon Back
Instagram profile (opens in new tab)Dayeon Back represents Korea (South) on the WTA Tour and is ranked No. 253, having reached a career high of No. 245. TennisDB's records show a singles record of 2–5 and no singles titles.
Singles ranking
253
Career singles high
245 (Jul 27, 2026)
Elo peak
1542 (19th percentile)
Singles record
2–5 (28.6%)
Singles titles
0
Prize money
$167,650
YTD W-L
1–1
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 |
|---|---|---|---|---|---|---|---|---|---|
| Maya Joint | 2-6 1-6 | L | H2H | Match data | Sep 23, 2026 | R16 | Korea Open | WTA 250 | Hard |
| Yue Yuan | 6-3 4-6 6-1 | W | H2H | Match data | Sep 21, 2026 | R32 | Korea Open | WTA 250 | Hard |
| 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 |
Rivals all rivalries →
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Maya Joint | 0 | 1 | 1 | Sep 23, 2026 | H2H |
| Yue Yuan | 1 | 0 | 1 | Sep 21, 2026 | 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 |
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% |
| 2026 | 24 | WTA | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% |
| Career | — | — | 2 | 5 | 7 | 28.6% | — | — | — | — | — | — | — | — | 2 | 5 | 7 | 28.6% |
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% |
| 2026 | 24 | 0 | 0 | — | — | 0 | 0 | — | — | 0 | 1 | 1 | 0.0% | 1 | 0 | 1 | 100.0% | 1 | 1 | 2 | 50.0% |
| Career | 0 | 0 | — | — | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | 1 | 3 | 4 | 25.0% | 2 | 5 | 7 | 28.6% | |
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% |
| 2026 | 24 | 2/2 | 0.0 | 1.0 | 71.7% | 55.1% | 36.4% | 33.3% | 71.9% | 48.7% | 41.1% |
| Career | 7/7 | 0.6 | 2.7 | 60.6% | 52.6% | 35.2% | 36.3% | 34.8% | 45.3% | 39.9% |
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 |
| 2026 | 24 | 1513 | 103.6 | -1.40 | -2.41 | 0.801 | 44.6% | — | — | — | 40.0% | -0.60 | 1–0 | — | — | +0.10 |
| Career | 1542 | 100.7 | -1.27 | -1.25 | 0.729 | 42.5% | — | — | — | 25.0% | -2.06 | 2–0 | 1–0 | — | +9.29 |
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%) |
| 2026 | 24 | R16 | 1–1 (50%) |
| W-L | 4–3 (57%) |
4–3 (57%) |
Results show the best round reached per tournament and season.
WTA Ranking History full ranking history →
Current rank
253
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 | 261 | 253 | — | — |
Similar Players
Other WTA players with comparable peak level, era, career record, and career scale.
| Player | Country | Peak ranking | Peak Elo | M | W | L | Win % | Prize money | Titles | GS | W1000 | Years | Rivalries | Match log |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sohyun Park (active player) | KOR | #244 | 1,507 | 5 | 1 | 4 | 20.0% | $198,224 | 0 | 0 | 0 | 2018–2026 | Rivalries | Match log |
| Mimi Xu (active player) | GBR | #234 | 1,550 | 4 | 1 | 3 | 25.0% | $409,796 | 0 | 0 | 0 | 2025–2026 | Rivalries | Match log |
| Amarissa Toth (active player) | HUN | #236 | 1,533 | 3 | 1 | 2 | 33.3% | $129,783 | 0 | 0 | 0 | 2023–2024 | Rivalries | Match log |
| Mei Yamaguchi (active player) | JPN | #242 | 1,589 | 5 | 1 | 4 | 20.0% | $168,004 | 0 | 0 | 0 | 2024–2026 | Rivalries | Match log |
| Matilde Paoletti | ITA | #262 | 1,566 | 4 | 1 | 3 | 25.0% | $70,853 | 0 | 0 | 0 | 2022–2023 | Rivalries | Match log |
| Carlota Martinez Cirez (active player) | ESP | #220 | 1,516 | 4 | 1 | 3 | 25.0% | $305,408 | 0 | 0 | 0 | 2016–2026 | Rivalries | Match log |
| Caroline Werner (active player) | GER | #221 | 1,532 | 3 | 1 | 2 | 33.3% | $203,831 | 0 | 0 | 0 | 2025–2025 | Rivalries | Match log |
| Sada Nahimana (active player) | BDI | #212 | 1,500 | 6 | 2 | 4 | 33.3% | $247,005 | 0 | 0 | 0 | 2023–2026 | Rivalries | Match log |
| Irene Burillo (active player) | ESP | #205 | 1,523 | 8 | 2 | 6 | 25.0% | $636,077 | 0 | 0 | 0 | 2022–2026 | Rivalries | Match log |
| Yasmine Kabbaj (active player) | MAR | #255 | 1,549 | 5 | 2 | 3 | 40.0% | $94,618 | 0 | 0 | 0 | 2024–2026 | Rivalries | Match log |
| Viktoria Morvayova (active player) | SVK | #288 | 1,554 | 4 | 1 | 3 | 25.0% | $146,419 | 0 | 0 | 0 | 2025–2026 | Rivalries | Match log |
| Xinxin Yao (active player) | CHN | #205 | 1,515 | 4 | 1 | 3 | 25.0% | $204,336 | 0 | 0 | 0 | 2024–2026 | Rivalries | 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 Slam singles titles has Dayeon Back won?
- Dayeon Back has not won a Grand Slam singles 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 2 wins and 5 losses (28.6%).
- How much career prize money has Dayeon Back earned?
- Dayeon Back has earned at least $167,650 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 2026.
- Who has Dayeon Back faced most often?
- Dayeon Back's most frequent opponent is Maya Joint, with a head-to-head record of 0–1 across 1 meeting.