In 2005, Dyson Racing once again entered two full-time Lola B01/60-AERs in the ten-race championship. The team had switched to Michelin tires in the offseason. With near-perfect reliability, the team began its 2005 campaign strongly at Sebring and scored its first ALMS LMP1 one-two finish for the team at Mid-Ohio. Weaver and Leitzinger also won at Mosport. The 12 Hours of Sebring marked the first Dyson race for Guy Smith, who from the Petit Le Mans later that year and onwards would continue to co-drive full-time with Chris Dyson. The team finished second behind rivals, Champion Racing in the teams championship with Chris Dyson second in the Drivers Championship.