The Brief The Washington State Cougars aim to stay undefeated against San Diego State in their Homecoming Weekend game. Coming off a season-opening win over Idaho, the Washington State Cougars look to stay undefeated in their next matchup against San Diego State. Keep reading for more details on the WSU vs San Diego State football game, and how to watch it live. Kickoff for Washington State vs. San Diego State is set for Saturday, Sep. 6 at 7:25 p.m. (PT)Where is the WSU-SDSU game? Related articleWashington State and San Diego State have previously met three times on the football field, with the Cougars leading the all-time series 2-1.