Scott Keller began riding at age 6 and progressed quickly through the junior ranks, winning the Virginia Horse Show Assoc. junior hunter year-end award for three consecutive years, as well winning top placings in the Medal and Maclay finals. After graduation from Duke University, Scott continued winning in the amateur-owner division, with two VHSA year-end championships. He began showing jumpers with Barney Ward in his 20s and competed successfully on his first Grand Prix mount, Romeo, including top finishes in the WEF grand prix classes, as well as several Puissance classes. Scott then trained with Joe Fargis, Barney Ward and Peter Leone in his late-20s and early-30s. This period culminated with his winning three Grand Prix events in 1999 and competing in the 2000 Olympic trials, all aboard Napolitano. After a few-year hiatus, Scott returned to competitive showing in 2005, and began competing as a professional in 2006. He competed in the 2008 Olympic Trials with Shine of Light, winning the first round, as well as a grand prix derby in Belgium. Scott has won a total of 13 grand prix events during his career.

             Most recently, Scott has been focusing on coaching his clients and developing younger horses, including participating in the retraining of retired thoroughbred racehorses. In 2016, Scott joined the Board of Directors of the Maker's Mark Secretariat Center in Lexington, KY, as an advisory consultant. Scott holds a B.A. degree from Duke University, and a J.D./M.B.A. degree from Columbia University.