My friend, I can't say for sure how many kilometers they covered, I'll ask my colleague who participated. When he responds, I'll comment something.
All I can say is that the route passed through some places between the 2 cities. It wasn't just one lap, for the women it was 2 complete laps. As for the men, in the qualifiers there were 3 laps and in the final it was only 2, as they had an extra route.