Sofia Costoulas will advance past Eva Alvarez Sande in Vigo on August 12, 2026. Costoulas enters with a 26-20 2026 record and a vivid 16-8 mark on hard courts, numbers that project a clear pathway against a 22-year-old Alvarez Sande who is 7-5 this year. If Costoulas wins she will move into the nex…