

Jakub Mensik defeated Brandon Nakashima 6-4 7-6 in the Australian Open qualifying round 1 on hard. The upset overturned the form book — Brandon Nakashima came in ranked #17, defending last year's round of 128. Jakub Mensik extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-07-30 | Washington | R16 | hard | Brandon Nakashima | 7-6(5) 3-6 6-4 |
| 2024-01-10 | Australian Open | Q128 | hard | Jakub Mensik | 6-4 7-6(4) |
Averages over each player's completed matches in the selected window (141 vs 187). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Mensik J.: 10 days rest · 3 matches (14d) · Nakashima B.: 7 days rest · 1 match, 21 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About