Begin running with a running clock going that will alarm each minute.   On each minute perform either Mary Catherines (10 each leg) or 10 pushups.  Do the Mary Catherines on the odd minutes and the push ups on the even minutes.  When the alarm goes off each minute, stop and do the exercise, then begin running again.  Keep running until you reach the goal distance, or until you get "vortexed" which is when can't finish the exercise before the minute is up.  Don't let this happen!

The score of the workout is the time it takes you to complete the set distance, or the distance you get before you get vortexed.