AFL Age Curves

Skip to content

AFL > Age Curves

AFL · Age Curves · Career Trajectories

When does each player actually peak?

One line per player — each point a TORP rating at that age. Pick up to four players to compare side-by-side; the bold line is a Gaussian smooth that decouples genuine trajectory from sparse early- or late-career rounds.

Method: Every rating row from ratings.parquet is used — one faint dot per player per round (the cumulative career rating at that point). Age at a given round is approximated as new Date(season, March 20 + (round-1)×7 days) − date_of_birth. The bold line is a Gaussian kernel smooth (bandwidth 0.75 yr) — it decouples how wiggly the trend is from how many rounds the player has played, so sparse early-career or late-career tails don’t dominate.