Mark your calendar now! The eighth annual Frankenthon Monster Marathon will take place on Saturday, October 22, 2016.

The Frankenthon is a small marathon in Cedar Park, Texas, just north of Austin. The race takes place entirely inside Brushy Creek Lake Park on concrete and crushed granite trails. If you’re looking for a fast course, the most enthusiastic volunteers/support around, and some great gear, this is the race for you. Hope to see you in October!

Race start is at 7am sharp. Runners who anticipate finishing in more than 5 hours may start early at 6am, but aid stations won’t come online until 7am. Please let us know if you plan to start at 6am.

frankenthon_head2016 Frankenthon Registration is Open!

Click here for more detailed info, or here to go straight to’s secure registration site. The race will be capped at just 150 runners so grab your spot now.

2014 Results

Results for the 2014 Frankenthon can be viewed by clicking here.