Learner Tien vs Felix Auger Aliassime — Halle Round of 16
USA
Tien L.
Learner Tien faces Felix Auger Aliassime in the Halle round of 16 on grass. Felix Auger Aliassime holds the paper edge — ranked #4, defending last year's round of 16, a roughly 60-point grass Elo advantage.
Win Probability
Pre-match · updated 16:20 UTC50–58%
58–67%
67–80%
80%+
Slight edge · Auger Aliassime F. narrowly ahead
Calibrated model · 65% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.
Key context
- Freshness: Workload contrast: Learner Tien 0 games in 14 days, Felix Auger Aliassime 106.
- Serve & return: Felix Auger Aliassime leads on Serve Rating (71), Learner Tien on Return Rating (59).
- Last match: Learner Tien dropped just 6 games past Max Schoenhaus.
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.
Form trajectory
Direction of recent form — results vs Elo expectation blended with serve/return vs each player's baseline, over the last few months. About
Statistics
This seasonAverages over each player's completed matches in the selected window (19 vs 26). ATP, WTA & Challenger.
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
Clutch
Under pressurePerformance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Freshness
Recent loadTien L.: 16 days rest · Auger Aliassime F.: 3 days rest · 2 matches, 38 games (7d). Higher means fresher. About
Conditions
Head to head
No previous meetings on record.