Finn Hågen Krogh knows a lot about ups and downs, and has formed somewhat of a pattern at this year's Tour de Ski. However, the Norwegian had one of his career-best races on Friday, winning the 10 k freestyle by 3.6 seconds ahead of teammate and overall Tour leader Martin Johnsrud Sundby. Noah Hoffman placed 19th to lead the U.S., and Canadian Alex Harvey finished 37th and is now 15th in the Tour.