Krummenacker was the 2003 World and U.S. Indoor 800 m champion. He won back-to-back-to-back U.S. Outdoor 800 m champion from 2001 to 2003. He was the first person to win the title 3 straight years since
Johnny Gray accomplished the feat from 1985 to 1987. The only person ever to win the 800 m title more than 3 years in a row was James Robinson who won it every year from 1978 to 1982. His personal records (PRs) include 1:43.92 (2002) for 800 m and 3:31.91 (2002) for 1500 m. ==References==