
Mackenzie Mcdonald defeated Lloyd Harris 6-7 7-6 6-3 in the Seoul CH quarter-final on hard. The upset overturned the form book — Lloyd Harris came in ranked #139. Mackenzie Mcdonald extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-04-22 | Madrid Masters | Q1 | clay | Lloyd Harris | 6-4 6-2 |
| 2021-02-08 | Australian Open | R32 | hard | Mackenzie Mcdonald | 7-6 6-1 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
Mcdonald M.: 2 days rest · 3 matches, 72 games (7d) · Harris L.: 2 days rest · 4 matches, 99 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