Hopefully it works out for you. It was a disaster for us. Could never get any other teams to commit to a scrimmage. Had some friendlies with some of the clubs younger teams, but between the youngers league and tournament schedules around the Holiday's it never was much. It is also an age group where one or two years younger is a significant size/development difference. So most coaches/parents don't want their younger players scrimmaging the "Highschool Players". Don't expect the U15 Trapped Player to see any meaningful games from the end of Nov until March. I would heavily recommend a good training schedule focused on fitness and individual skills. The teammates playing in Highschool will see a lot of games against older players in this timeframe and will usually come out of Highschool in good shape, ready to play, if they don't get injured. Most Highschool programs are pure Kick and Run, so the tactical skills of game play will suffer for all players. Your trapped player needs to keep their fitness and touches on point during this three month forced timeout. Club coaches are going to want to hit the ground running in March to fix all the bad Highschool habits; if your player is out of shape from half-hearted training during this time, they are going to be on the bench when they can't catch their breath.