Thai Son Kwiatkowski vs Alex Michelsen — Tiburon CH Round of 16
USA1
Kwiatkowski T.Thai Son Kwiatkowski defeated Alex Michelsen 4-6 6-4 6-3 in the Tiburon CH round of 16 on hard. The upset overturned the form book — Alex Michelsen came in ranked #46, defending last year's round of 16.
Key context
- Match story: Thai Son Kwiatkowski dropped the opening set before beating Alex Michelsen 4–6 6–4 6–3.
Head to head
No previous meetings on record.
Serve vs return
This seasonEach player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Serve & return on hard
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About
Statistics
This seasonAverages over each player's completed matches in the selected window (83 vs 200). ATP, WTA & Challenger.
Clutch
Under pressurePerformance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
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 loadMichelsen A.: 3 days rest · 4 matches, 78 games (7d). Higher means fresher. About