and 100-yard and 200-yard freestyles in 2009, and led the Golden Bears to their first NCAA team championship in 2009. Swimming career Early career At the age of 12, Vollmer was the youngest swimmer to compete at the 2000 U.S. Olympic Trials, but did not qualify for the U.S. Olympic team. She was also the youngest swimming competitor a year later at the 2001 Goodwill Games. 2004 Summer Olympics At the 2004 Summer Olympics in Athens, Greece, Vollmer won a gold medal as a member of the winning U.S. team in 4×200-meter freestyle relay, together with Natalie Coughlin, Carly Piper and Kaitlin Sandeno. In addition to winning the gold medal, the U.S. relay team broke the previous world record in the event that had stood for 17 years. 2005–2008 At the 2007 World Aquatics Championships, Vollmer won a gold medal in the 4×200-meter freestyle relay. She also won the silver medal in the 4×100-meter freestyle relay and 4×100-meter medley relay. Vollmer just missed making the 2008 Olympic team, placing seventh at the 2008 US Olympic Trials in the 200-meter freestyle with 1:58.67, 0.51 seconds behind the 6th-place finisher, 5th in the 100-meter butterfly with 58.64, and 9th in the 100-meter freestyle with 54.84, 0.03 seconds behind 8th place qualifier Amanda Weir. 2009–2011 On February 25, 2009, Vollmer set her first individual American record, breaking Natalie Coughlin's 200-yard freestyle record with a time of 1:41.53. At the 2009 World Championships in Rome, Italy, Vollmer won two medals, a silver and a bronze. In the 200-meter freestyle, Vollmer set an American record in the semi-final with a time of 1:55.29. In the final of the 200-meter freestyle, Vollmer placed third, and her American record was broken by Allison Schmitt. In the 4×200-meter freestyle relay, Vollmer swam the leadoff leg in 1:55.29. The American team finished in second place behind China with a time of 7:42.56. At the 2011 World Aquatics Championships in Shanghai, Vollmer won a total of three medals, two gold medals and one silver. In her first event, the 4×100-meter freestyle relay, Vollmer won a silver medal with Natalie Coughlin, Jessica Hardy, and Missy Franklin. After setting the national record in the semi-finals of the 100-meter butterfly (56.47), Vollmer won the gold medal in the final with a time of 56.87. In the 4×100-meter medley relay, Vollmer the gold medal along with Natalie Coughlin, Rebecca Soni, and Missy Franklin with