Then, around 40 minutes later, he returned to the pool to reduce his own 50-meter freestyle world record time by 0.08 from 20.24 seconds to 20.16.
Dressel’s sublime speed helped his team, Cali Condors, to a first-day lead over defending champions Energy Standard, with London Roar third and LA Current fourth.
The ISL is contested in a shorter, 25-meter pool. Bigger events, such as the Olympics, world championships and national championships, are held in 50-meter pools.
Dressel’s double world record-breaking day comes just a weekend after he became the first swimmer ever to dip under 50 seconds in the 100-meter individual medley.
He took almost half a second off the previous record set by the Russian Vladimir Morozov in 2018, finishing with a time of 49.88.
Afterwards, three-time Olympic gold medal winning swimmer and now ISL commentator Rowdy Gaines called Dressel: “The best swimmer on the planet, bar none.”
Dressel burst onto the scene in the 2016 Rio Olympics, winning two gold medals in relays. Since then, he has gone on to win 13 golds medals and two silvers at the last two World Championships.
He is expected to be one of the top stars at next summer’s Tokyo Olympics and could qualify for seven separate events including relays.