A win would make her the first woman ever to 4-peat in both breaststroke distances in the NCAA.
Weitzeil appeared to injure herself finishing the 200 medley relay Friday night, leading to concern over whether she would race Saturday.
Watch select races from Friday night in Austin.
Nelson shaved half a second off Regan Smith’s American record Friday night in Austin.
There were only a pair of scratches for this morning’s session.
Defending champ Mallory Comerford of Louisville is eyeing Missy Franklin’s record in the 200 free.
Livestream Andy is back in action for one night, and one night only.
Cal mid-year addition Izzy Ivey was among the five swimmers to final in two individual events Friday night.
SwimSwam’s Jack Spitser was on deck to capture all of the fast day three finals action.
Weitzeil and Simone Manuel have now both been 20.45 on a relay.
Nelson destroyed all previous records Friday night, going 49.18.
King went 55.73 Friday night in Austin.
The Sweden native went 49.26 in finals Friday night.
Stanford’s Brooke Forde, the 500 free champion, is on fire.
SwimSwam captured circle-seeded heats (top 24 seeds) of all events, and are available to watch below.