Katie Boulter defeated Viktorija Golubic 7-5 6-2 in the W100 Surbiton 1 quarter-final on grass. The upset overturned the form book — Viktorija Golubic came in ranked #52. Katie Boulter extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-02-01 | Ostrava | R16 | hard | Katie Boulter | 6-2 6-2 |
| 2025-08-17 | Cleveland | R16 | hard | Viktorija Golubic | 7-6 1-6 6-4 |
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Boulter K.: 4 days rest · 2 matches, 46 games (7d) · Golubic V.: 3 days rest · 2 matches, 53 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 grass field, opponent-adjusted over 52 weeks). About