DeVries attended the University of California at Berkeley from 1984 to 1987 and was voted three times in the top selection All-American . Between 1985 and 1987 he was a member of the US Junior Davis Cup team. In 1987 he became a professional tennis player and specialized in men's doubles . Together with his doubles partner Chris Kennedy he reached the semi-finals of the Challenger tournaments in Bloemfontein and East London this year . In 1989 he was able to win his first two titles on the ATP Challenger Tour at the side of John Sobel , followed by two more Challenger double titles with changing partners in the two following years. In 1990 he reached the quarterfinals of the ATP tournament in Montreal with David Macpherson . In 1991 DeVries continued to play on the Challenger Tour, where he won four more double titles with changing partners, but also began to play regularly with David Macpherson on the ATP World Tour. Together they were twice in a final, but lost each time.
1992 turned out to be his most successful year. With his doubles partner David MacPherson, he won four ATP doubles titles, including the Masters tournament of Indian Wells . Both qualified for participation in the ATP World Tour Finals . The following year they were in the finals of the ATP Championship Series tournaments in Stuttgart and New Haven . In the course of his career, in addition to his four double titles, he was in a final five times, including the Masters tournament in Stockholm . He reached his highest ranking in the tennis world rankings in 1991 with position 221 in singles and in 1993 with position 18 in doubles.
In the individual, he could never qualify for a Grand Slam tournament. In the doubles competition he reached the quarter-finals of the US Open in 1991 , at the Australian Open , the French Open and in Wimbledon he was each in the second round.