Registration for the 2012 Twisted Ankle Marathon is OPEN. Registration for the 2012 Twisted Ankle Half Marathon is OPEN. Registration for the Twisted Ankle Trail Run is through Active.com. Prices: Marathon: $50 Limited to 175 runners Half Marathon: $40 Limited to 175 runners After May First, $10 will be added to each fee. Any person(s) under the age of 18 years will be required to have a parents' signature to sign up.