N. Koizumi defeated J. Van Herzeele in the Round of 16 at the M15 Wuning 6 tournament, winning 6-3, 6-4 on hard courts. Koizumi hit one ace and two double faults, while Van Herzeele had two aces and six double faults. Koizumi converted 50% of break points and won seven service breaks, compared to Van Herzeele's four service breaks and 67% break point conversion rate.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-07-10 | M15 Wuning 5 | QF | hard | N. Koizumi | 6-7 4-6 |
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