Katie Volynets vs Sofia Costoulas Head to Head Tennis Stats and Match Analysis

Katie Volynets and Sofia Costoulas have met 1 time in professional competition, with Katie Volynets leading 1-0. Their most recent encounter was in August 2025 at US Open, where Katie Volynets prevailed on hard court 6-3 6-4.

Katie Volynets: Against opponents ranked outside top 100 players in the last 52 weeks, Katie Volynets holds a 30-8 record (78.9%). Throughout her career, she has competed against opponents ranked outside top 100 303 times, winning 201 (66.3%). Over the past 10 matches, she holds a 7-3 record. Over the past 52 weeks, Katie Volynets has posted a 45-26 record (63.4% win rate). Over her career at WTA level, Katie Volynets holds a record of 28-49 (36.4%) on hard, 10-19 (34.5%) on clay, and 3-11 (21.4%) on grass. At Challenger/ITF level: 74-51 (59.2%) on hard, 58-28 (67.4%) on clay, and 3-2 (60.0%) on grass. In the last 52 weeks: 7-12 (36.8%) on hard, 2-5 (28.6%) on clay, and 2-3 (40.0%) on grass at WTA level. 4-1 (80.0%) on hard and 2-1 (66.7%) on clay at Challenger/ITF level. Katie Volynets has won three titles at Challenger/ITF level (all on clay). Katie Volynets serves an average of 1.3 aces per match in the last 52 weeks, consistent with her career average of 1.0.

Sofia Costoulas: Against top 100 players in the last 52 weeks, Sofia Costoulas holds a 1-4 record (20.0%). Throughout her career, she has competed against top 100 6 times, winning 1 (16.7%). Over the past 10 matches, she holds a 5-5 record. Over the past 52 weeks, Sofia Costoulas has posted a 42-30 record (58.3% win rate). Over her career at WTA level, Sofia Costoulas holds a record of 2-1 (66.7%) on hard and 0-1 on clay. At Challenger/ITF level: 130-70 (65.0%) on hard and 55-46 (54.5%) on clay. In the last 52 weeks: 2-1 (66.7%) on hard and 0-1 on clay at WTA level. 29-17 (63.0%) on hard and 7-5 (58.3%) on clay at Challenger/ITF level. Sofia Costoulas has won five titles at Challenger/ITF level (four on hard and one on clay). Sofia Costoulas serves an average of 3.5 aces per match in the last 52 weeks, consistent with her career average of 3.2.