My son is on a 2020 team with not as many holdbacks. He'll be 14 soon. He's pumped to play the crabs and other top teams this spring. He wants to play varsity lacrosse next year. He's not huge so he's got to learn to play with bigger and older players. There is some unfairness with grade based lacrosse to the kids who are born later. Would be the same with single year age -- ie 9/1/01 birthday and 8/31/02 birthday. And definitely a 2 yr u15 age bracket 9/1/00 to 8/31/02. To me if your kid is in 8th grade, is passionate about the game, has goals to be a impact player in HS and perhaps play in college - it's time stop worrying about the ages of his competitors and teammates. IMO those who are obsessed about this suffer from the same affliction as those who would have their kid repeat a grade for lax -- a desire to control their kids athletic endeavors. Let the kids play and enjoy the game