The first half of the 22km was tough. No big hills just short steep wall, after short steep wall (kinda Tour of Flanders type bergs!) and they all added up in the legs. You guys had done a lot more climbing to that point as well!!
My Garmin threw a wobbly with the elevation. Recorded 1,900m+ but think it was more like 750m odd with the bulk of that in the first 10km.