What follows are descent and marathon predictions based on 10 years of results.
Splits assume altitude training.
Without training in high altitude you can expect to lose some serious time after the A-frame. It will read too slow because almost everyone runs to Ruxton even though the slower you are the more you will be walking the rest of the course. This can severely skew the Ruxton split. No Name Creek split 2 and Barr Camp split 3 are from Hydro Street and not the start because many people start here on training runs.