Who else to watch: World champion Natalie Geisenberger and Vancouver winner Tatjana Huefner are 1-2 after the first two runs while Russian Natalja Khoreva is fourth and has home-track advantage on one of the longest courses in the world.
Women's long-track speed skating
You know you're pretty good when one of your opponents says words to the effect of, "I really hope I can win the silver or bronze."
Lee Sang Hwa won every 500 meter race she entered this season. That's seven wins, four with world record times.
Margot Boer of the Netherlands said the only way Lee loses is if she makes a mistake. And that just isn't very likely.
She'll face Brittany Bowe in the first heat, which may be a boost for the U.S. skater.
We'd post some comment from Lee, but she doesn't do media before her races.
Who else to watch: Olga Fatkulina of Russia, who won the one race Lee didn't enter. Wang Beixing of China and Heather Richardson of the United States.