Securing his place as one of the biggest stars of the Tokyo Olympics, Caeleb Dressel won his fourth gold medal with a victory in the 50-meter freestyle Sunday. Dressel cruised to a relatively easy win in the frenetic dash from one end of the pool to the other, touching in an Olympic record of 21.07 seconds. When the 24-year-old Floridian saw his time and, more important, the "1" beside his name, he splashed the water and flexed his bulging arms.