Yesterday I ran the Kingston half, I believe I was the only Harrier.
If you like running on pavements (which were semi flooded), small footpaths, around tight corners, cars, pedestrians, cyclists etc. then this is your ideal race (it was flat at least). If this doesn’t sound appealing I would suggest finding almost any other half marathon. Anyway considering I didn’t taper as in marathon training I was pleased with 1:24:56, although second half was a bit of a struggle.