Alex Blandino hit a home run, Austin Slater, Zach Hoffpauir and Brant Whiting each had three hits, but Stanford dropped a 10-8 decision to visiting San Jose State in a nonconference game Tuesday night.
The Cardinal (24-22) opens a critical three-game Pac-12 series with visiting Washington State on Friday at 7 p.m., to be followed by a fireworks display.
Stanford held a 4-0 lead after four innings, but had its nine-game winning streak in non-conference midweek games snapped.
San Jose State benefited from seven walks, while also picking up 12 hits. The Cardinal out-hit SJSU, 14-12, but the Spartans scored four runs in the fourth inning and five more in the sixth to run away with the game.
The Cardinal plated its first four runs in a hurry, thanks to a two-run homer by Blandino and a pair of RBI singles off the bat of Whiting before the third inning ended. Blandino's blast to left field was his Pac-12-leading ninth of the season. Nine home runs is more than five Pac-12 teams have accumulated all season.
Stanford continued to hit throughout the game, scoring in six of nine innings, but put just single tallies on the scoreboard in five frames. SJSU did its scoring in bunches, plating four in the fourth and five more in the sixth.
The Spartans tied the game, 4-4, in the fourth off of three Cardinal pitchers, including starter Chris Viall. An error and two walks helped the Spartans, as Tyler Thorne and Chris Castellanos also threw in the inning.
Stanford was quick to answer in the bottom half on a Danny Diekroeger RBI single, but the five-run sixth proved insurmountable.
Castellanos (0-1) stayed in the game until the devastating sixth inning, when a hit-by-pitch and a two singles preceded a fly out to start the frame. Sam Lindquist came on and after a double, walk, single, hit-by-pitch and a wild pitch SJSU took a 9-6 lead.
Marcus Brakeman finished the game on the hill for the Cardinal. He threw 3 1/3 innings as Stanford's most effective pitcher, giving up one run on two hits and striking out three.