Kowalchuk (yellow bib). Her ankles have very little flex and her knees are “un pointy”.
Kikkan Randall (# 8). Her thighs are quite horizontal; therefore, her butt is back. She says that this is ok as long as she is fresh. As soon as she is fatigued from racing or training, she can’t get her hips moving forward-so, no forward momentum.
Bjorgen (#11) She has good ankle flex and her thighs are approaching vertical. She has good forward hip momentum and she is falling onto her poles. You can see this in the final kick to the finish