O.K. chaps. East Cornwall Harriers think that this "proper" road marathon is probably one of the toughest on the U.K. circuit. We reckon it knocks the Snowdonia into a cocked hat. O.K. so the Snowdonia has a long hill after a flat start, but after 4 miles you get a nice long rest for the next 9 or so. We admit that Waen Fahr? is a bit steep, but from 9 to 22 it's gently undulating!
The Cornish is pretty steeply uphill from the start for 2 miles or so, followed by about the same disrance respite. Then comes the ups and downs leading to Bodmin Moor & the Jamaica Inn (ooh arr Jim Lad!)
The next 6 miles down the Fowey Valley are bliss, apart from being nackered by the previous hills. Then comes the indignity of the climbs back up to Minions. Thankfully, like Snowdonia, the last couple of miles are mostly downhill but, similarly, a bit too steep for weary legs in places. The REAL CORNISH PASTY and other free refreshments at the finish are bliss, except that you have to walk up another steep, but short, hill to the community hall to get them.
I could be a bit biased, as our club organises the race and my husband has run both, several times.
As for the likes of The Isle of White, Potteries, etc., they're just kids play.
I'd be interested to hear other peoples comments, especially the Welsh Boyoos.