Ten changes since our last update, including Headford Harry knocking 10 spots off his Swindon sprint clock.
Perhaps the most interesting though is Churchill Holly who added the Nottingham 500m ‘best’ to her impressive 480 showing. The debate about the time difference between two similar distances at a track is worth a little further scrutiny.
The 107 spots compares to the difference between the comparative track records at 98 spots. At Sheffield it is 95 spots and at Central Park 96 spots.
