Landry Fields scored 16 points, 12 in the second half, as Stanford defeated Oregon State 65-55 on Saturday.
Fields added 11 rebounds, six assists and three blocks for the Cardinal (13-14, 7-8 Pac-10), who won a second straight road game after losing their first 10 of the season.
Calvin Haynes had 21 points and six rebounds for Oregon State (12-14, 6-8).
Stanford, which trailed 30-28 at halftime, shot 52 percent in the second half, including makes on 5 of 7 shots from 3-point range.
The Cardinal, who won at Oregon on Thursday, swept a Pac-10 road trip for the first time since winning at both Washington schools in 2008.