The operative word on the first day of swimming at the Olympic Aquatics Stadium was speed.
For the U.S. team, all the scorching times amounted to a double-edged sword. American swimmers were notably faster than they had been at Olympic Trials, five weeks earlier. But in final after final, they lost to sensational performances from international competitors.
Chase Kalisz of Bel Air set a personal best in his preliminary heat for the 400-meter individual medley, then swam even faster in the final. But he could not catch Japan’s Kosuke Hagino.
In the women’s 400 IM, Maya DiRado swam a personal best but lost by nearly five seconds to a world-record...