30 May2019 Pure Conditioning May 30, 2019. Written by CrossFit Inventive. Posted in CrossFit CrossFit Inventive – Pure ConditioningMetcon (Time)Teams of 3 10,000m ski erg On every 3 mins all team member stop and do 10 burpees until 10k is complete. Start 0:00 with 10 burpees. 45 minute cap Trackback from your site.