Calum Neff sets his third stroller-pushing world record

Neff ran 10K in under 32 minutes to set his third world record

Father and son break world record in half-marathon at Houston

First it was Olympian Tommy Hughes and his son breaking the world marathon record for father-son combined times, now Andrew and Matthew Leach have broken the half-marathon world record–and the two fathers have raced each other

Nick Symmonds runs fastest 400m in Crocs

Symmonds went once around the track, in 55 seconds, while wearing Crocs