One stat I find interesting....there was a massive 'holy moly' when Valby ran a 18:58 on a flat course....which don't get me wrong, was incredibly impressive. Tuohy just ran a 19:08 course record on Panorama...which is a hilly course. Elly Henes won the 2019 South East regional at Panorama in 19:48. Tuohy beat her winning time by 40sec.
I'm not saying Valby won't be able to compete with Tuohy, as she is looking very strong this year. But the hills will be where this race is won and lost...not the flats.