

Lois Boisson defeated Mirra Andreeva 7-6 6-3 in the Roland Garros quarter-final on clay. The upset overturned the form book — Mirra Andreeva came in ranked #6, defending last year's semi-final.
No previous meetings on record.
Averages over each player's completed matches in the selected window (65 vs 99). ATP, WTA & Challenger.
Boisson L.: 2 days rest · 3 matches, 55 games (7d) · Andreeva M.: 1 day rest · 2 matches, 33 games (7d). Higher means fresher. About
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 clay field, opponent-adjusted over 52 weeks). About