Is your player overloaded this week?

Enter this week's sessions, matches, minutes and RPE: compare it in 10 seconds to NBA/USA Basketball age guidelines. No account needed.

Where do these guidelines come from?

For the number of matches, sessions and weekly volume in basketball, this tool uses the joint NBA and USA Basketball youth guidelines by age bracket (youthguidelines.nba.com). For the full table by age and the training load formula (duration × RPE), see the Training Load page.

The total weekly hours guideline, across any activity, comes from the American Academy of Pediatrics (AAP): no more organized-sport hours per week than the child's age, with an absolute cap of 16 hours/week, at least one rest day, and 2-3 months off per sport each year. Unlike the NBA/USA Basketball table, this rule is not basketball-specific: it applies to any team sport.

For adults and elite athletes, volume varies too much by level for a fixed cap on sessions or minutes. The reference used in sports science is the acute:chronic workload ratio (ACWR): this week's load divided by the average load of the previous 4 weeks. Gabbett's research places the "sweet spot" between 0.8 and 1.3, with a caution threshold above 1.5. Enter the average load of the last 4 weeks above to get this ratio.

These numbers are not universal: each athlete's training history, sport and level affect their actual tolerance to load. The AAP rule applies to young athletes, not adults.

One number is not enough

This calculator gives a one-week snapshot. The most reliable warning sign in sports science remains a sharp increase compared to previous weeks, not an absolute number. That is exactly what Bilybyn tracks automatically, week after week, per player and per team, with no re-entry.