General
englandathletics.org – the main website for athletics in England.
Race Information
ukresults.net – lots of information about upcoming races.
northeastraces.com – races in the North East area.
power of 10 – results and athletes rankings.
Fell Running
fellrunner.org.uk – all information required for FRA races.
eskvalleyfellclub.org – fell running on the North Yorks Moors.
Vets
yvaa.org – Yorkshire Vets information.
Summer League
roadraceleague.org.uk – York 10k Summer League information.
Park Run
York parkrun
Heslington parkrun
New Earswick parkrun