Stillwater, Okla. — Oklahoma State's Andrew Oliver allowed just a run off four hits over eight innings, and the Cowboys rode a three-run seventh to a 6-1 Big 12 Conference baseball victory over Kansas University on Friday at Reynolds Stadium.

No Jayhawk managed more than one hit. Joe Southers scored the Jayhawks' lone run.

Nick Czyz (2-5) took the loss after allowing three runs - two earned - off four hits over 61â3 innings.

The big blow was a three-run homer by Neil Medchill off KU reliever Paul Smyth.

Kansas fell to 25-20 overall, 5-11 Big 12. No. 13-ranked OSU improved to 30-11 and 12-7.

The teams will resume the series with a single game at 2 p.m. today.