Guys you have been awesome in providing so much info.. Thanks alot.. However with so much elevation in the last 25km or so, would it not be a better idea aiming for less than 2:17ish at Witkoppen? As to still do sub3, it would mean averaging +- 29 to 30kmh during the time when it hurts most. I've not done this race before so I'm sure you guys have a better idea anyway.