1v1 race is just like a normal race, just that you don‘t have all the other riders to worry about. You could also imagine that this occurs quite often on a ride with someone, where you could say: „Hey, I bet I can beat you to some point on the road.“ In the end the vast majority of bike races require you to be strong on some shorter effort (quite to the liking of Roglič) and the time trial is much more of an odd one out as a format. We could make a significant part of our imaginary duel time trials, but I‘m not sure what bike those should be held on, I‘m guessing Roglič gains significantly from the TT bike.
Anyway, I‘m not saying Roglič isn‘t that great and he‘s possibly a greater rider than Van der Poel (although he hasn‘t won the biggest race in his specialty). But I just took issue with
@Rackham ‘s ridicule of anyone who isn‘t at the weight limit trying to ride as fast as possible on tall mountains.