STILLWATER, Okla. -- The Colorado tennis team performed a school-first by sweeping both Oklahoma schools on the same weekend on the road, defeating Oklahoma State, 6-1, Sunday afternoon at the DuBois Tennis Center.

The Buffs, who beat Oklahoma on Friday 7-0, clinched a fourth seed at next week's Big 12 Tennis Championships at College Station, Texas, with an 8-3 conference record.

With the fourth seed, the Buffs (11-10, 8-3 Big 12) receive a first round bye and play the winner of No. 5 Kansas or 12 seed Iowa State in Friday's quarterfinals. The No. 59th ranked Buffaloes also won their fourth straight match.

CU 6, Oklahoma St. 1

Singles -- 1. Monica Milewski (CU) def. Iryna Tkachenko 6-3, 4-6, 6-4; 2. Yawna Allen (OSU) def. Camila Belassi 7-6 (3), 6-1; 3. Gleisy Torres Torres (CU) def. Jo-Anne Karaitiana 6-4, 0-6, 6-4; 4. Veera Nurmi (CU) def. Sasha Belova 6-4, 4-6, 6-4; 5. Melisa Esposito (CU) def. Maryna Tkachenko 6-4, 6-4; 6. Franziska Jendrian (CU) def. Jessica Collins 4-6, 6-0, 6-2

Doubles -- 1. Belassi/Milewski (CU) def. Karaitiana/Belova 8-3; 2. Tkachenko/Allen (OSU) def. Esposito/Jendrian 8-5; 3. Torres Torres/Abbie Probert (CU) def. Collins/Tkachenko 8-2