

Learner Tien defeated Daniil Medvedev 6-4 6-0 6-3 in the Australian Open round of 16 on hard. The upset overturned the form book — Daniil Medvedev came in ranked #9, defending last year's round of 64. Learner Tien extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-10-01 | Shanghai Masters | R16 | hard | Daniil Medvedev | 7-6(6) 6-7(1) 6-4 |
| 2025-09-25 | Beijing | SF | hard | Learner Tien | 5-7 7-5 4-0 RET |
| 2025-01-13 | Australian Open | R64 | hard | Learner Tien | 6-3 7-6(4) 6-7(8) 1-6 7-6(7) |
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
Averages over each player's completed matches in the selected window (18 vs 27). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
Tien L.: 11 days rest · 2 matches (14d) · Medvedev D.: 9 days rest · 3 matches (14d). Higher means fresher. About