Only really big surprise today was that Kwak Yoon-Gy went out in the first round after stripping his edge (From what I could tell anyways). He was completely unable to put any pressure on his left skate.
One thing I also saw today is the intensity of the skaters and the staff of the various teams. They know what is at stake. Every race really counts. Not that they don't at every world cup, but with Olympic berths on the line, you have skaters looking closely at times and placings to find out where they stand.
Another thing that I have been learning this week is that many countries have standards on top of just placing skaters in the top 32 after the two weeks or racing. For example in Germany, to qualify in the 1500, you not only have to be top 32 after the two qualifying World Cups, but you also must achieve a top 18 (semi final) either this weekend or next. (This only applies if Germany does not qualify a relay team. If they do qualify a relay team, then anyone who reaches the ISU standard of Top 32 is eligible to race individually in the distance they have a top 32)
Remember to check out live TV coverage on CBC friday and saturday.