Every NBA offseason comes with the same tired assumptions. A 34-year-old scorer is a ticking time bomb. A 36-year-old point guard is over the hill. Front offices treat the downswing like a cliff, operating on the assumption that skills universally erode the second a player hits their late twenties.

It sounds intuitive, but is it actually true? And does father time treat every basketball skill the exact same way?

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To find out, we mapped aging curves for nine distinct basketball skills using 46 years of NBA data, filtering down to players with at least 40 games and 20 minutes a night. The results show a clear split between what fades fast, what holds steady, and what actually gets better with age.

Data: NBA regular season statistics 1980-2026. Sample: 9,162 qualifying player-seasons (minimum 40 games, 20 minutes per game). Decay rates calculated via linear regression on league average per-game production by age, ages 27-39. Survivorship bias affects ages 36+: fewer players qualify at older ages, and those who do are disproportionately elite. All statistics from the Net Wins database.

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