Thursday 4th June ~ Henderson's End

Not sure how this race got its name; is it a place, or does it refer to something unfortunate happening to Henderson, or is it a reference to some part of said person's anatomy, and if so, why?

Regardless of its origins, it starts from the Top Barn, this Thursday at 7:30, courtesy of Lostock AC, so I'm not UTUPing after all, but racing. Anyone else fancy it?

EtU