
Gabriel Diallo defeated James Duckworth 6-3 7-6 in the Canada Masters qualifying round 1 on hard. The upset overturned the form book — James Duckworth came in ranked #86, leading the head-to-head 2–0, defending last year's round of 16. Gabriel Diallo claimed a first win over James Duckworth in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-05-24 | Roland Garros | R128 | clay | James Duckworth | 6-3 4-1 |
| 2025-10-13 | Almaty | R16 | hard | James Duckworth | 7-6 6-7 6-4 |
Averages over each player's completed matches in the selected window (199 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Diallo G.: 15 days rest · Duckworth J.: 5 days rest · 2 matches, 56 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