Lewis & Clark fell 76-59 at Whitman on Friday night, ending the Pioneers' five-game win streak.
Kurt Parker scored 15 points, and Randall Jackson had 10, but the Pios hit just 21 of 64 field-goal attempts including 4 of 31 from 3-point range.
Whitman was 24 of 57 overall and 9 of 22 from beyond the arc.
L&C fell to 12-4 overall and 5-2 in the Northwest Conference.
Whitman climbed to 11-6, 6-2 in the NWC.
The Pioneers will play Saturday night at Whitworth, the preseason league favorite. Whitworth is 12-4, 6-1.