Well, Chelsea became a mother and dealt with two major injuries (the broken foot, which everyone knew about, and the hip, which no one outside of Las Vegas knew about). Jackie and Kelsey were all-in for making the Olympic team, with the former literally hurting herself to grab a spot while the latter had to deal with a public divorce from a weirdo, attention-seeking husband. Kelsey has also hinted throughout the year that she wants out of Vegas, so we'll see what happens (she will be cored, so the team she picks will have to give up some assets).