Sofia Costoulas vs Jennifer Ruggeri — US Open Qualifying Round of 128
Costoulas S.
Sofia Costoulas defeated Jennifer Ruggeri in the first round of US Open qualifying, 7-5, 6-4. Costoulas served more efficiently, posting a 79% first-serve win percentage to Ruggeri's 62%, and converted four service breaks to Ruggeri's two. Costoulas also committed fewer double faults, 3 to 9.
Key context
- Match story: Sofia Costoulas edged Jennifer Ruggeri in two tight sets (7–5 6–4).
Head to head
No previous meetings on record.
Statistics
This seasonAverages over each player's completed matches in the selected window (44 vs 40). ATP, WTA & Challenger.
Win Probability
Pre-match · updated 23:50 UTC50–58%
58–67%
67–80%
80%+
Slight edge · Costoulas S. narrowly ahead
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 loadCostoulas S.: 2 days rest · 2 matches, 50 games (7d) · Ruggeri J.: 3 days rest · 1 match, 22 games (7d). Higher means fresher. About