Lake Forest senior Peter Grumhaus (from right), senior Bogdan Balteanu, senior Colin Rowe and sophomore Daniel Smith won the 400-yard freestyle relay during the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media

Mundelein senior Connor Black (right) competes against Libertyville sophomore Matt Harrington in a heat of the 100-yard butterfly during the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media

Lake Forest's Daniel Smith swims as part of a 400-yard freestyle relay team at the Vernon Hills Sectional Saturday. | Ryan Pagelow~Sun-Times Media

Carmel senior Peter Alnajjar competes in the 100-yard backstroke during the Vernon Hills Sectional Saturday. | Ryan Pagelow~Sun-Times Media

Libertyville senior Eric Boynton waits for his heat in the 100-yard backstroke to begin during the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media

Vernon Hills sophomore Rob Williams reacts after his heat in the 100-yard breathstroke during the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media

Vernon Hills senior Alex Zuniga set pool and school records for diving at the Vernon Hills Sectional Saturday. Zuniga, who scored 470.80 points, will dive at state Friday. | Ryan Pagelow~Sun-Times Media

Carmel senior Peter Alnajjar (center) shakes hands with Mundelein senior Jason Rehor after winning the 100-yard freestyle during the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media

The Lake Forest High School swim team holds up the sectional champions trophy after winning the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media

Mundelein senior Jason Begrowicz competed during the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media

Vernon Hills junior Yuriy Stepanov competes in the 200-yard individual medley during the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media

Mundelein senior Mark Betti competed in the 200-yard individual medley during the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media

Mundelein senior Mark Betti competed in the 200-yard individual medley during the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media

Mundelein senior Chris Starck looks at the time results during his heat of the 50-yard freestyle during the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media

Lake Forest senior Peter McCormick (left) competes in the 100-yard butterfly during the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media

Mundelein senior Connor Black (center) wins the heat against Libertyville sophomore Matt Harrington (right) and Warren junior Garrett Zenner in a heat of the 100-yard butterfly during the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media

Mundelein senior Connor Black reacts during the Vernon Hills Sectional Saturday. | Ryan Pagelow~Sun-Times Media

Libertyville's 400-yard freestyle relay team of Robert Snader, Atticus Rush, Justin Fu and Eric Boynton celebrate during Saturday's Vernon Hills Sectional. | Ryan Pagelow~Sun-Times Media

Lakes senior Kyle Aerne holds up a medal after competing in the 100-yard breaststroke during the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media

Libertyville senior Eric Boynton shakes hands with other swimmers after placing third in the 50-yard freestyle during the Boys' Swimming and Diving Sectional at Vernon Hills High School on Saturday, Feb. 16, 2013. | Ryan Pagelow~Sun-Times Media