
James Duckworth defeated Illya Marchenko 7-6 3-6 6-3 in the Busan CH quarter-final on hard. The result followed the form book — James Duckworth came in ranked #86, leading the head-to-head 4–0. James Duckworth extended the head-to-head to 5–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-08-09 | Canada Masters | Q1 | hard | James Duckworth | 6-1 6-3 |
| 2015-08-10 | Canada Masters | Q1 | hard | James Duckworth | 6-3 7-5 |
| 2014-05-26 | Roland Garros | Q1 | clay | James Duckworth | 4-6 6-3 6-4 |
| 2014-05-21 | Roland Garros | Q128 | clay | James Duckworth | 4-6 6-3 6-4 |
Averages over each player's completed matches in the selected window (176 vs 33). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Duckworth J.: 4 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