My daughter has been playing keeper for the last 6 months, so wasn't thinking much about the kids getting tired. Been guest playing to get her some field work, which she enjoys for the change of pace. Starting to notice by the start of the 2nd half of that 2nd game, fatigue becomes a major factor. With fatigue comes an increase in injuries plus sloppy play. Have to agree that 1 game a day would be ideal.
Had a AYSO core team that advanced to sectional playoffs, we had 3 games in one day. Won the the first, but with no bench, the kids looked wiped out the next two games. Felt that we could have beat either team if we were only playing one game per day. Too much money involved for many of these club and AYSO Extra/Select tourneys to have them do something else. 150 teams at $500 per team is the main fund raiser for the year. They do shorten the length of the games a bit, but still doesn't help. Just can't see them holding a tournament over a two weekend time period.