As Lowell Bailey rounded the course on Saturday in Nove Mesto, Czech Republic, a total of five times in the men’s 12.5-kilometer pursuit, he couldn’t hear a thing his coaches were shouting at him. The 35,000 spectators in the stadium and lining the track were overpowering them, but their movements gave the US Biathlon veteran all the information he needed to know. “It was, by far, the loudest spectator crowd I’ve ever experienced,” Bailey recalled on...