Marrs, 19, has lived in Knik, Alaska his entire life. At the age of 7, he started running his own team. Marrs ran the Jr. Iditarod in both 2007 and 2008. In 2009, Marrs ran the Iditarod and was the youngest participant. After traveling at an average speed of 3.04 mph for 14 days, 11 hours, 56 minutes, and 25 seconds, Marrs successfully crossed the finish line and placed 47th. In addition to finishing numerous races, Marrs has been the recipient of rewards in the field as well. In the 2008 Jr.