The @49ers Week 13 home game will be played at State Farm Stadium
— NFL Research (@NFLResearch) December 3, 2020
Since 1970, there have been 5 games played by teams at an opposing team's home stadium (1-4 in such games)
The only team to win?
The @BuffaloBills when they beat the Jets 38-3 at Ford Field in Week 12, 2014