We’ve all seen it happen
Most of us who run programs, coach or sit on a board are parents too. We’ve stood on the sidelines at tryouts and watched the biggest kid in the age group look like the best player in the gym, on the ice or on the field.
Sometimes they are. Often they’re just older. Kids in the same age group can be almost a full year apart, and at 10 or 13 that can mean several inches and a lot more strength. It’s easy for any of us to mistake that for talent.
It’s not just a hunch
Researchers have a name for this: the relative age effect. A large review pulled together 38 studies across 14 sports and 16 countries. Kids born early in the selection year kept showing up more often on the teams that got picked, especially at rep levels in popular sports. A later review found the same thing in girls’ and women’s sport.
The part that should bother us as parents is what happens next. The younger kids get cut, get less coaching, and a lot of them quit before they ever get the chance to catch up.
Seven things we can do about it
- Watch them over weeks, not one day. A single session shows you a moment. A few weeks of practices and games shows you where a kid is headed.
- Get a second set of eyes. Have two people score on their own, then compare. If they disagree a lot, talk about it instead of averaging it away.
- Write down what you’re looking for. Skill, decisions, effort, coachability, being a good teammate. Decide what a good score means before tryouts start, and share it with coaches and families.
- Look at how much they’ve grown, not just where they are. How far have they come since last time? How do they take instruction? That tells you more than height does.
- Check your picks against birth months. Evaluators don’t need birthdates in front of them. But afterward, look at who made it. If most of them were born in January, February and March, take a second look.
- Leave the door open. Plan a mid-season check so a late bloomer can move up, and let families know a decision now isn’t a decision forever.
- Give every kid a few words of feedback. One thing they do well and one thing to work on, including the kids who didn’t make it. As parents, that’s what we’d want for our own.
What a season of this can look like
| When | What happens | Who |
|---|---|---|
| Start of season | First look, using the written criteria | Two evaluators |
| Every 3 to 4 weeks | A quick note on each player: one strength, one thing to work on | Team coach |
| Mid-season | A proper second look, and a check against birth months | Technical lead + evaluators |
| End of season | Final evaluation and a short written summary for each family | Coach + technical lead |
It fits how Canada already thinks about development
Sport for Life’s Long-Term Development framework is built on the idea that kids develop at different speeds and need time. Most national sport bodies base their pathways on it. Watching kids across a season is simply that idea in practice.
“But our coaches don’t have time”
Fair. Some of our coaches are parents squeezing this in around work and family, and even full-time coaches are juggling big rosters. The trick is keeping each note tiny and grabbing it in the moment, during or right after practice, instead of facing a pile of write-ups at the end of the season.
Player Vector was built by a sports parent to make this easy: coaches capture quick feedback through the season, and families get a clear picture. See how it works