Two Mercer Island residents headed to Omaha, Neb. this week for the U.S. Swimming Olympic Trials.

Ethan Hallowell, who just finished his freshman year at Stanford University will be swimming the 50 freestyle race, while Hannah Weiss, 16, will be swimming in the 100 butterfly, 100 backstroke and 200 backstroke.

At the end of Hallowell’s first season swimming for the Cardinal, he was ranked fourth in the event with a 19.82 time. He is ranked 56th in country.

Weiss, who goes to Mercer Island High School, strongest event is the 100 backstroke, where she is ranked 25th overall.

Weiss swims with King Aquatics, as a member of the national team. Weiss qualified for the trials last year during a meet in December.

The men’s 50 freestyle prelims are scheduled for Saturday, June 30, while Weiss events took place Monday and Tuesday, with the 200 backstroke race on Saturday.

The swimming trials will be broadcast online with many of the preliminary races available on NBCSN with the finals for the day airing on NBC.

Visit the USA Swimming website for schedules and a live view of the trials.