N. Koizumi defeated J. Van Herzeele in the quarterfinals of the M15 Wuning 5. The match ended with a score of 7-6, 6-4 in favor of Koizumi. Koizumi hit 3 aces and 5 double faults, while winning 72% of first-serve points and converting 44% of break points; he also secured 4 service breaks to Van Herzeele's 3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-07-16 | M15 Wuning 6 | R16 | hard | N. Koizumi | 6-3 6-4 |
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.