99% sure this is true. If you don't pass the run the first two attempts you're done. Other ones you can roll to H class.Oh man, that's not good... I'm not 100% sure but I think the new policy is if you fail the run portion of the IST you are immediately kicked out. Maybe one of the OCS staff (who monitor this site BTW) will chime in. I'm not trying to scare you but I thought I remember hearing that when I was still at OCS a few months ago. The logic being that if you fail the other events in the IST you can probably improve slightly before the next PFA and bust out a few more sit ups/push ups (and pass) but it's much harder to shave minutes off your run. I hope your knee feels better so you can improve that run time.