Been a long time, so most are dated. I have never been to a USA or NCAA or track championship, but have been to some XC champs. Went to the Drake Relays every year in high school and college, so most of the fastest times were at those meets. A long time ago.
100 m - 10.0x Calvin Smith, Harvey Glance also ran 10.01 but day before; 11.0x Merlene Ottey
200 m - 20.x Calvin Smith; 22.x Merlene Ottey
400 m - 45 something, but I don't remember who; 51.9 Arria Minor (CO high school state meet a couple years back)
800 m - 1:45.8 Randy Wilson (meet record still holds); 2:01 Essie Kelly
mile - 3:55 Steve Scott; 4:37 Cindy Bremser
5000 - 13:27 Nick Rose; 15:25 Judi St. Hillaire
10000 - 28:07 Kip Koskei; 32:17 Lynn Jennings (my wife got 3rd in that race)
Half Mar - 1:04 Jon Sinclair (at 5000 ft elev.); 1:14 Maureen Custy (also at altitude)
Marathon - 2:07 Moses Tanui; 2:23 Fatuma Roba
Other Notables -
NCAA Cross Country - Alberto Salazar beating Henry Rono
USA Cross Country - Molly Huddle (2019), Laura Thweatt 2013 and 2015
3000 m steeple - Henry Marsh 8:31
400 m hurdles - 49.x Nolan Cromwell (went on to be an NFL great)
High Jump - 7'4" Bill Knodel of Univ. of Iowa at half time of a Big 10 basketball game, using the western roll technique, which was all pretty remarkable to see.
