Dayeon Back leads 2 to 1 over 3 singles meetings since 2023. Last meeting on 24/06/2026 at W35 Taipei.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 24/06/2026 | W35 Taipei | Round 1 | hard | Back | 3-6 3-5 |
| 04/11/2025 | W35 Hamamatsu | Round 1 | carpet | Yoshioka | 3-6 6-4 7-5 |
| 11/08/2023 | W15 Sapporo | Quarter-final | hard | Back | 1-6 2-6 |
| hard | Back 2 - 0 Yoshioka |
| carpet | Back 0 - 1 Yoshioka |
| 2026 | Back 1 - 0 Yoshioka |
| 2025 | Back 0 - 1 Yoshioka |
| 2023 | Back 1 - 0 Yoshioka |
189 wins, 90 losses since 2021 (67.7%).
Last matches: D D V D D
85 wins, 84 losses since 2021 (50.3%).
Last matches: D D V V V
Dayeon Back leads 2 to 1 over 3 singles meetings since 2023.
On 24/06/2026, at W35 Taipei (Round 1): Dayeon Back won 3-6 3-5.