The Stanford baseball team left the bases loaded in the bottom of the ninth inning and paid for it when Santa Clara's Ryan Budnick led off the 10th with a home run to give the visiting Broncos a 1-0 nonconference victory Tuesday night.
Stanford (20-26) also lost in extra innings at Santa Clara last month. The Cardinal travels to No. 13 USC for a three-game series that starts Friday.
Stanford had the bases loaded with one out in the ninth following a Zach Hoffpauir single, a fielder's choice that did not get an out and a walk to Alex Dunlap, who had two of Stanford's four hits.
Reliever Mitchell White entered the game and fanned a pair of Cardinal hitters to get out of the jam and force extra innings.
Sophomore lefthander Chris Castellanos allowed two hits through the first six innings and Tyler Thorne followed with three innings of one-hit work.
Hock, who pitched the 10th, took the loss to fall to 0-2.
Tommy Edman singled with two outs in the 10th for the Cardinal's final hit.