**Mind-blowing stat: ** Since taking over as the starting QB (Week 6), Colin Kaepernick has more rush yards than these notable RBs: LeSean McCoy, Todd Gurley, Devonta Freeman and Carlos Hyde.
**Kap trending up: ** Kapernick has a passer rating of 89.6 or better in each of his last four starts.
**Historically bad defense: ** The 49ers are allowing 424.5 yards per game this season, which would be the 2nd-most for a season in NFL history.
**Achilles heel: **San Francisco's run defense has allowed 5.1 yards per carry this year. The last team to allow 5+ YPC in a season was the 2013 Bears (5.3 YPC allowed).
**Trying to prevent history: ** The 49ers have allowed 30+ points in eight of 11 games (most in NFL). No team in NFL history has allowed 30+ points in nine of their first 12 games.