Herron attended the University of New Mexico and played on the 1993 United States Walker Cup team before turning professional later that year. He played on the Nationwide Tour in 1995, and the following season he won for the first time on the PGA Tour at the Honda Classic. He won three times in his first four seasons at the top level. Herron continued to play consistently after that, but there was a seven year gap before he claimed his fourth PGA Tour title at the 2006 Bank of America Colonial. His best finish in a major championship is a solo 6th place finish in the 1999 U.S. Open. In 2006, he featured in the top fifty of the Official World Golf Rankings.
Scott has been Tim’s swing coach for the 2012 PGA Tour sessions in which Tim has secured his 2013 PGA tour card with a 9th place finish at Disney placing 124th on the money list.