4) I doubt it.

6) Wakka's overdrive hits for 12 times. Otherwise they can be precisely equal after maxing out the sphere grid.

7) pick up some players like Jumal (in luca) and Brother (airship) set up the fastest with the best pass (brother) to the middle, tidus and another good scorer on the left and right fronts, two random low level players in the back and then a player with high catch as goalie (jumal)

If your guy can intercept the ball or get it back easily from the other team, have him pass it back to your back two players and have them throw it back and forth as much as possible during a half to build up their levels. If the other team manages to score, take tidus back and have him try to score (This is best done with jecht shot, which you can get on the boat from kilika to luca) Otherwise wait out the half passing between your players (if the other team is far away, pass it out to tidus and your front men also)

The second half, keep doing that for a while until you have about two or one and a half minutes left, then take tidus over and try to score. You should have enough time to do it at least once, which is all you need to win!