Level, 1 wins each over 2 singles meetings since 2023. Last meeting on 28/09/2026 at Columbus Challenger.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 28/09/2026 | Columbus Challenger | Qualifiers | indoor hard | Okonkwo | 6-4 6-1 |
| 02/08/2023 | M25 Decatur | Round 1 | hard | Mitsui | 7-6(3) 6-4 |
| indoor hard | Mitsui 0 - 1 Okonkwo |
| hard | Mitsui 1 - 0 Okonkwo |
| 2026 | Mitsui 0 - 1 Okonkwo |
| 2023 | Mitsui 1 - 0 Okonkwo |
96 wins, 53 losses since 2021 (64.4%).
Last matches: D D V D D
42 wins, 49 losses since 2021 (46.2%).
Last matches: D D D V V
Level, 1 wins each over 2 singles meetings since 2023.
On 28/09/2026, at Columbus Challenger (Qualifiers): Oliver Okonkwo won 6-4 6-1.