Karen Khachanov vs Learner Tien — US Open Round of 16
USA14
Khachanov K.
Karen Khachanov defeated Learner Tien in the Round of 16 at the US Open. The match ended with a score of 7-5, 4-6, 6-7, 6-1, 6-4. Khachanov converted 75% of his break points and won 9 service breaks to Tien's 5.
Generated automatically from Umpiry match data.
Key context
- Match story: Karen Khachanov came through a tight passage before pulling clear — 7–5 4–6 6–7 6–1 6–4.
Head to head
No previous meetings on record.
Statistics
This seasonAverages over each player's completed matches in the selected window (27 vs 30). 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 20:50 UTC50–58%
58–67%
67–80%
80%+
Clear favourite · Tien L. clearly ahead, but no certainty
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 loadKhachanov K.: 1 day rest · 3 matches, 117 games (7d) · Tien L.: 1 day rest · 3 matches, 128 games (7d). Higher means fresher. About