Day one is in the books. It was a typical southern California summer day in Irvine for the start of the 2013 US Open. Here’s some some sights from the day
![Wisconsin Aquatics out in full force at the US Open - rockin with Bucky Badger. (photo: Mike Lewis, Ola Vista Photography)](http://swimswam.com/wp-content/uploads/2013/07/US-Open-Mike-Lewis2-640x425.jpg)
Wisconsin Aquatics out in full force at the US Open – rockin with Bucky Badger. (photo: Mike Lewis, Ola Vista Photography)
![Norte Dame distance swimmer Brennen Jacobsen prepping for the 1500. (photo: Mike Lewis, Ola Vista Photography)](http://swimswam.com/wp-content/uploads/2013/07/US-Open-Mike-Lewis-15-319x480.jpg)
Norte Dame distance swimmer Brennen Jacobsen prepping for the 1500. (photo: Mike Lewis, Ola Vista Photography)
![mid day time trials. (photo: Mike Lewis, Ola Vista Photography)](http://swimswam.com/wp-content/uploads/2013/07/US-Open-Mike-Lewis-11-640x426.jpg)
mid day time trials. (photo: Mike Lewis, Ola Vista Photography)
![smiles and fast swimming from the Stanford crew. (photo: Mike Lewis, Ola Vista Photography)](http://swimswam.com/wp-content/uploads/2013/07/US-Open-Mike-Lewis-7-319x480.jpg)
smiles and fast swimming from the Stanford crew. (photo: Mike Lewis, Ola Vista Photography)
![Kansas City Blazer Head Coach Gardner Howland. (photo: Mike Lewis, Ola Vista Photography)](http://swimswam.com/wp-content/uploads/2013/07/US-Open-Mike-Lewis-31-319x480.jpg)
Kansas City Blazer Head Coach Gardner Howland. (photo: Mike Lewis, Ola Vista Photography)