Here's an interesting situation... In Vancouver singles qualies there was 1 match where neither player sent in picks so neither of them advanced, and instead a player who lost 1st round of qualies replaced them and got to play 2nd round of qualies, so I'm not sure how I should go about entering that
What I normally do there is entering the player who advance in the first round, giving him a bye. Than not enter the other 2 players who didn't send. His opponent will clearly also get a bye, otherwise the player has to play twice in one round, which is not possible!
Player A vs Player B
Player C (didn't send) vs Player D (didn't send)
What you enter:
Player A vs Bye
Player B vs Bye