When i was just doing cross-fit, i never ran other than when rx'd. For my ranger pt test I had to run 5 mins in under 40 mins. Because of cross-fit, I ran a 32.48... #1 in my class. You'll be fine with out doing any extra running.
2007 BMW AW 335i
Mr.5 Intake///HKS SSQV///Race Land DP///JB4
10in. JBL W3///JBL GTO AMP///LC2i