Track and field is sorta weird when it comes to records…as there are “state meet records” which MUST be achieved at the state finals, and all-time “state records” which are unofficial but can be set at anytime.
Mike Slabaugh is a professor from the Fort Wayne area and a track and field nut/guru.
He keeps tabs on the sports better than anyone at the local (Indiana) level.
His work can be seen here:
https://users.pfw.edu/slaubau/alltimeindex.htm
In the 15 standard boys events, 10 records have been set since the turn of the century while, 11 have for the girls (girls pole vault is still in its relative infancy.)