Rob Dyson began racing in the Sports Car Club of America in 1974 with a Datsun 510 sedan, his pit crew consisting of his wife Emilie alone. He won his very first race, a regional event at Watkins Glen. Moving to SCCA nationals in 1977, he added Pat Smith as crew chief and won a national championship in 1981 with a Nissan 200SX.
Dyson's first professional race came at Lime Rock Park in 1983 with a Firebird in IMSA's GTO class. Running nine races and selected Trans Am events, the team's best result was a third in class at the 1983 Elkhart Lake 500. During this period Dyson forged a key relationship with Goodyear that would grow into a full tire support partnership sustaining the team through two decades of competition.
Acquiring a Porsche 962 in 1985, Rob Dyson and co-driver Drake Olson won on their first outing at Lime Rock Park, despite running a smaller 2.8-liter engine against rivals using 3.2-liter units. The team won four consecutive Porsche Cups of North America.
James Weaver joined in 1987 and won his debut race at Road Atlanta. He would become the team's anchor driver for the next two decades. In 1988, the team scored two of Porsche's three wins against the dominant Nissan GTP ZX-Turbo, including a victory with the bespoke 962-DR1 chassis at San Antonio that ended Nissan's win streak.
Dyson Racing became Porsche North America's factory-supported IMSA team in 1990. After a productive early 1990s campaign, the team sat out all of 1992 before returning for the final GTP-era Daytona 24 Hours in 1993, finishing fifth overall and second in class.
Rejoining IMSA for the inaugural World Sportscar Championship in 1994 with a Spice-Ferrari, the team committed to the new Riley and Scott MkIII the following year. The car won on its third outing at Road Atlanta in 1995.
The WSC years brought sustained dominance. Butch Leitzinger won the IMSA WSC drivers' titles in 1997 and 1998, and James Weaver took the 1998 United States Road Racing Championship Can-Am title. The 1997 season was the team's best to that point: it opened with a first win at the Daytona 24 Hours and concluded with six total victories. Leitzinger, Elliott Forbes-Robinson, and Weaver filled the top three places in the 1997 drivers' championship, and the team captured its first Team Championship. Across the Riley and Scott years from 1995 to 2002, the cars scored 38 victories.
Elliott Forbes-Robinson won the inaugural 1999 American Le Mans Series drivers' championship for Dyson Racing, and the team also claimed its second Daytona 24 Hours win that year. The 1999 Sebring 12 Hours produced a second-place finish that was the closest finish in that race's history.
Dyson Racing transitioned to Lola-AER machinery for 2002 and competed across LMP675 and LMP1 classes with consistent results. In 2003 James Weaver and Butch Leitzinger scored an outright overall victory at Sonoma — the first time an LMP675 car had won an ALMS event overall. Chris Dyson, Rob's son, became a full-time team driver, and the team won the 2003 LMP675 team and drivers' championships.
The 2011 season with Mazda-powered Lola machinery yielded five championship titles including the overall team and drivers' crowns with Chris Dyson and Guy Smith. The team completed its 200th career podium at Mid-Ohio in 2012 and Chris Dyson celebrated his 100th ALMS start at Baltimore that same year. A final ALMS overall win at Road America in 2012 set the record for the closest overall finish in series history, decided by 0.083 seconds.
Pivoting to the new Grand American Road Racing Association series after the ALMS class structure shifted, the team won the inaugural Grand-Am SR1 Championship in 2000 with James Weaver. They repeated the team championship in 2001 and 2002, the latter year also seeing Chris Dyson finish second in the drivers' standings and earn Rookie of the Year honors.
After ALMS competition ended, Dyson Racing returned to racing with a Bentley Continental GT3 in the 2014 Pirelli World Challenge, with Butch Leitzinger, Guy Smith, and Chris Dyson sharing duties across the 2014 and 2015 seasons and recording wins and podium finishes.
Founded on minimal resources by a club racer and his wife, Dyson Racing grew into one of North American sports car racing's most enduring and successful operations, competing across six distinct series over four decades. The team's partnerships with drivers such as James Weaver, Butch Leitzinger, Elliott Forbes-Robinson, Price Cobb, and Guy Smith; its technical relationships with Porsche, Lola, Mazda, and Goodyear; and its championship haul across multiple eras make it a defining institution of American endurance and prototype racing.