Referees registered so far this year

Registration pace — same point in the season, three years

Table view — registrations by season week

New sign-ups vs recertifications

Year-over-year retention

Share of one year's referees who registered again the next year, matched on USSF ID. Completed cycles only.

The retention gap — first-year referees vs veterans

This is the number worth watching. Veterans are sticking better each year; first-year referees are leaving faster.

Table view — retention detail

Who is refereeing — age bands

Table view — age bands

Female share — recruiting versus keeping

Historical composition — completed registration years

Referees by sex, each completed year

Share of the roster, by year

Age bands over time

Table view — composition by year

Who leaves — retention by sex and by age

Female vs male retention

Under-18 vs adult retention

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