Alex Harvey wasn’t feeling 100 percent on Sunday, but he didn’t need to be. Within three seconds of the leaders and eighth place at the finish of the men’s 10-kilometer classic mass start was essentially what he needed to secure one of the most coveted positions on the Tour de Ski right now: third place. Ahead of him, Russia’s Sergey Ustiugov and Norway’s Martin Johnsrud Sundby have built a nearly one-minute and 40-second lead on third place,...