SEATTLE — Oregon's Emmanuel Coste nailed down his third three-set singles victory in as many days and the Duck doubles team of Joshua Charlton and Thomas Laurent also advanced Saturday at the ITA Northwest Regional tennis tournament.

Coste notched a 6-7, 6-1, 6-3 win over Gonzaga’s Ruadhan O’Sullivan and will play Philip Hjorth of Pacific in Sunday's singles quarterfinals.

Charlton and Laurent beat Stanford’s William Genesen and Sameer Kumar 8-6 and will play top-seeded Kawika Lam and Enzo Sommer of Washington in Sunday's doubles semifinals.