USA's Caitlin Leverenz competes in a heat of the women's 400-meter individual medley at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Saturday, July 28, 2012. (AP Photo/Matt Slocum)

Matt Slocum

Tucsonan Caitlin Leverenz finished third in the second semifinal race of the 200 individual medley in London.

Leverenz, 21, swam 2 minutes 10.06 seconds in the race and qualified for Tuesday's final.

The 200 IM is the Sahuaro High School graduate's best event.