Dyke was in 1977 in the finals of the singles and doubles competition of the junior tournament of the Australian Open . He attended Wichita State University in Kansas . In 1982 he became a professional tennis player and was in the finals of the ATP tournaments in Adelaide and Melbourne with Wayne Hampson in the same year . The following year he was in Auckland for the first time in a quarter-finals singles. He was also in a double-final two more times. In 1984 he won three double titles on the ATP World Tour alongside his compatriot Wally Masur . The following year he was again successful with Wally Masur, but in the three final encounters they reached together, they each left as losers. 1986 succeeded both in Auckland another joint title win. This should also be his most successful single year. He reached the final of two consecutive tournaments. In Metz he was defeated by local hero Thierry Tulasne , in Brussels he lost the final to Mats Wilander , after he had previously triumphed over Boris Becker and Miloslav Mečíř . In 1987 he won the title at the Challenger Tournament in Jakarta and the double title in Tokyo alongside Tom Nijssen . In August 1988 he had a shoulder operation and had to take a break for several months. In the course of his career, Dyke won eight double titles, another 14 times he was in a final. He reached his highest ranking in the tennis world rankings in 1986 with position 35 in singles and 1984 with position 23 in doubles.
His best individual result in a Grand Slam tournament was participation in the third round at the 1985 Australian Open. In the doubles competition, he reached the semi-finals of the French Open in the same year , and made three quarter-finals at the Australian Open.