Yes - well organised event. Have to echo Dan's comments though - 29 degrees and not a single spot of shade on the entire course. I ran Dartford (1.38.05) and Canterbury (1.37.53) halfs in July and August respectively, both of which were considerably tougher, hillier courses, yet I ran a minute slower in pancake flat Ely than either of them.
That said, in keeping going, after a couple of days recovery - felt absolutely great and have since run a 10k PB. I'll just have to do my HM PB at the Royal Parks instead!!