My understanding about Yassoo 800s is a way to evaluate you fitness level. Doing a Yasso 800s doesn't mean you can run a marathon. A yasso 800s is an interval training of 7.5 miles. Any person that follow a 10K program can run a yasso 800s, but this person can not think, that he can run a marathon just because of the Yasso…
what are your stats re 5k time? I assume it would be sub 18? I tend to take 2 minutes recovery on 800's, though thats the nxt thing to improve on and bring down. when i moved to 8 x 800 i did them in two blocks of 4 x 800 with a slow 800 recovery jog in between the two sets.