How far can you continue this sequence within one hour?
If you can't do the push-ups, do them from the knees.
If you can't do the pull-ups, do them with half your body weight as assistance.
Rankings are separate for those doing either assisted pull-ups or push-ups from the knees.
Here is a report on a guy who has nearly stumbled on the CrossFit formula.
Check it out. The site hosting the article is a fun and fairly reliable site for