I have a few questions that if answered should lead to less confusion down the road, I strongly recommend that a policy is formed to settle these situations, Chippie. I'm sure that a few other problems may arise, I encourage you to think through all possible problems now so you can mitigate long delays.

1. What happens when two players do not complete the scheduled matches by the deadline? Who advances?
2. Are matches to be played in a specific mode (battle/ctf)? Who decides the levels?
3. Are matches to be played to a certain score/timelimit?
4. How are match times to be arranged? Are they set by you or do the individuals arrange times themselves? What happens when a time agreement can be not reached?
5. In the case that someone does not show up for an agreed match time how is it verified that the one person (or even both) did not show up? Will missing agreed on times hurt chances if matches are not completed?
6. How are the starting matches determined?