The Tigers shot an impressive 52.2 percent (12-of-23) from the field in the first half to take a 35-27 advantage into the intermission.
Pacific continued its torrid shooting in the second half, knocking down 10-of-19 attempts (.526) to hold on for the 70-61 win.
For the game, the Tigers shot 52.4 percent (22-of-42) from the field, but recorded only 13 assists while turning the ball over 23 times.
Junior Miah Davis (Bremerton, Wash.) led Pacific offensively with a team high 20 points on five-of-seven shooting from the field and a perfect nine-of-nine effort from the charity stripe.
Freshman Christian Maraker (Varberg, Sweden) and junior Tom Cockle (Raymond, Neb.) were the only other Tigers in double figures in scoring with 16 and 10 points, respectively.
As a team, Pacific outrebounded San Jose State 33-23.
They've also beaten the Spartans in four of their past five meetings.
Brandon Hawkins scored a season-high 23 points as San Jose State (3-5) dropped its third straight. Antonio Lawrence added 14 points.
The Spartans played without their leading scorer Oudie Baker, who suffered a knee bruise during practice Wednesday.
The series dates to 1910, with Pacific holding a 79-74 edge, though the Tigers don't include the first three games, a win and two losses, in their record book. It's the longest series in either school's history.
The Spartans tied the game at 52 when Scott Sonnenberg hit a 3-pointer with 5:28 remaining to play but Demetrius Jackson hit a key 3-pointer and made two free throws to help give the Tigers a 64-58 edge in the final minute of play.
The women of Sparta found the winning edge against Southern Utah, however.
The SJS women topped Southern Utah, 84-68, at the Spectrum on Saturday night. It is the second consecutive game the Spartans posted more than 80 points.
"It is not only a great win because its our first road win, I think as a team we made a statement and showed just how good we can be," remarked Spartan head coach Janice Richard. "I really enjoyed coaching the team and watching them play tonight. Its something we can build on and I know the players attitudes are good right now."
Two San Jose State players, juniors Cricket Williams and Tatiana Taylor, scored more than 20 points in the game. Williams led the team with 28 points and eight assists. Taylor posted 21 points and grabbed six rebounds.
"It was major for us to have those two step up. Both players are capable of doing this on any given night," added Richard. "Tatiana has been in foul trouble lately and had to sit. If she's on the floor, she can pound the inside and create openings for other players."
The Spartans were down 11 points with just over four minutes to play in the first half, but were able to go on a 13-2 run to take a 36-36 tie into the break.
Both teams battled back and forth for the first 10 minutes of the second half before the Spartans were able to take control of the game. Taylor scored 19 of her 21 points in the second half helping the Spartans to a 19-point lead at one point.
"We've had a new rotation system in place the last two games which has obviously been successful," continued Richard. "Everybody has a role and they know exactly when they'll be in the game and when they'll play. It gets everybody involved and I think it helps with their confidence."
The Spartans shot 45.3 percent (29-64) from the field compared to the Thunderbirds' 36.2 percent (21-58) from the field. San Jose State shot a stellar 53.8 percent from beyond the three-point arc, while Southern Utah hit a paltry 9.1 percent.
Four Southern Utah players scored in the double-digits and three players had eight or more rebounds.
The Spartan women will look to close the 2002-03 non-conference schedule above .500 when they host Santa Clara on Monday, Dec. 30 at the Event Center.
The Spartan men will also look to take their second school win in the new rivalry series after their basketball team topped the Broncos earlier this season.
The game will be broadcast on KSJS (90.5 FM) with the pregame show beginning at 6:45 p.m. for the 7:00 p.m. tip off.
Listen to all the games on this site by going to the front of the site, looking under the "Spartan Media Links" tab, and clicking on the "Live SJSU Yahoo! Hoops Audio" link.