Shelton played for the Georgia Institute of Technology while studying industrial engineering . In 1985 he won the US National Amateur Championship and in 1988 he was elected to the All-American selection. The following year he became a professional tennis player and was able to win his first title on the ATP Challenger Tour in Munich that same year . Overall, he won four singles and four doubles titles on the ATP Challenger Tour. His greatest successes on the ATP World Tour were the two consecutive titles in Newport with final victories over Javier Frana and Alex Antonitsch . He also won two ATP double titles. He reached his highest ranking in the tennis world rankings in 1992 with position 55 in singles and in 1994 with position 52 in doubles.
His best individual result at a Grand Slam tournament was reaching the round of 16 at Wimbledon . There he defeated Michael Stich in the first round after he had already played three rounds of qualification. After further victories over Karim Alami and Jason Stoltenberg, he finally lost to the Swede Christian Bergström in a contested match in the fifth set with 8:10. In the doubles competition he reached the round of 16 at the French Open and Wimbledon. His greatest success in mixed he had at the side of Lori McNeil , with whom he stood in the final of the French Open in 1992 and lost to Todd Woodbridge and Arantxa Sánchez Vicario .
After the end of his professional career in 1997, he first worked as a trainer for MaliVai Washington . Between 1998 and 1999 he coached the United States Tennis Association , after which he returned as head coach of the women's team at the Georgia Institute of Technology, with which he won the 2007 championship of the National Collegiate Athletic Association .