Tom Hollins (former Spine race, back when you could be supported if you wanted) is currently on the Wainwrights and has been since Sunday morning.
https://live.opentracking.co.uk/tow2021/
He's currently about a leg down on Paul Tierney's record as he heads into the Northern Fells, though he may well be pacing it or a fast finish so worth keeping an eye on, though I think he's probably a bit too far behind, but still on for a decent time and I can't imagine the last 20h or so have been much fun.
Despite me feeling completely out of the Fell Running loop now, I've also heard of another attempt starting around now. I'll only share details if I find it public anywhere - it's not my place to release other peoples' plan.