comparing to tour de france cat 4 maybe cat 3 depending on the rest of the climbs on that day. In a mountain stage they would be cat 4 in a flat stage cat 3. There are no actual rules a climb for listing in cats. On general on a flat stage a climb gets a higher rating. Climbs with stge finish at the top go up 1 category to normal. In the first week the give a cat to every bump in the road, just to get some jersey action. Best ever points for climbing a water defence line in the netherlands, total ascent 20meter or so