Marija Ristic is a Serbian player ranked 267 competing in Istanbul qualification on clay. She enters with mixed recent form, showing three wins in her last five matches including victories over Lovro Boskovic and Juliette Mikulskyte, though she has dropped two sets in recent losses. This will be Ristic's first career meeting against Belgium's Sanja Costoulas, with no prior head-to-head record between the two.

Sanja Costoulas is a Belgian player ranked 146 facing Marija Ristic in Istanbul qualification on clay. She presents a ranking advantage and demonstrates solid form with three wins in her last five outings, including a straight-sets victory over Aksu and a recent win against Jeanjean, though she suffered two consecutive losses before her recent win streak. Costoulas and Ristic have no previous head-to-head history entering this qualifying encounter.