Chris Cunningham added 11 points and 14 rebounds for the Spartans (6-5, 1-0 WAC).
Joel Wright had 22 points and Phil Hawkins 10 in the first and last WAC opener for the Bobcats (4-9, 0-1). Texas State arrived from the Southland Conference but is bolting for the Sun Belt after its one-year stay.
San Jose State, which departs the WAC for the Mountain West next year, took advantage of 25-percent shooting (8 of 32) by Texas State in the first half to build a 32-19 lead at the break.
The Bobcats got no closer than eight in the second half as San Jose State controlled the action inside. The Spartans outrebounded Texas State 41-31 and enjoyed a 48-28 scoring advantage in the paint.
ESPN's Dan Dakich joins The Paul Finebaum Show to discuss the SEC's presence in the NBA Draft.
Ted Kapita was the top-rated recruit from West Virginia in the class of 2015 and recently played at DME Academy in Florida.
With the Suns drafting Tyler Ulis, they now have five guards on their roster who attended Kentucky.