Wouldnt imagine there are that many old ones, as the sheer numbers of participants in many events means that records will tumble. Bob Beamons long jump stood for ages as I recall though.
Fell running is a declining sport from its heyday, although BGR numbers are increasing.
The WR for the mile has been around for a while I think - mainly because it isnt run very often now.
Edited: 08/06/2012 at 09:52