Stefano Napolitano vs Mackenzie Mcdonald — US Open Qualifying Round of 256
Napolitano S.
Mackenzie McDonald defeated Stefano Napolitano in the US Open qualifying first round. McDonald won 4-6, 5-7. McDonald had 2 aces and 2 double faults, while Napolitano had 8 aces and 5 double faults.
Key context
- Match story: Mackenzie Mcdonald edged Stefano Napolitano in two tight sets (6–4 7–5).
Head to head
No previous meetings on record.
Statistics
This seasonAverages over each player's completed matches in the selected window (23 vs 26). ATP, WTA & Challenger.
Clutch
Under pressurePerformance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Win Probability
Pre-match · updated 23:50 UTC50–58%
58–67%
67–80%
80%+
Slight edge · Mcdonald M. narrowly ahead
Calibrated model · 65% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.
Umpiry Score
Pre-matchThe Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
Freshness
Recent loadNapolitano S.: 4 days rest · 1 match, 22 games (7d) · Mcdonald M.: 1 day rest · 3 matches, 72 games (7d). Higher means fresher. About