1st Newcomer Isle of Man TT - Race #1 - 16th position / Race #2 - 11th position
1st Newcomer North West 200 - Race #1 - 13th position / Race #2 - 12th position
1st Isle of Man TT Superbike Race
1st Isle of Man TT Superstock Race
Uel Duncan Racing
Cameron rode for Uel Duncan in 2007, after a highly successful 2006 season with them. His dreams of a TT win in 2007 were shattered at the North West 200, where he broke a collarbone in an incident at the Juniper Chicane. Cameron was back on board the Honda at the Skerries races and left with two wins. Despite many promising performances, Cameron has yet to win an International road race.
On 4 September 2007, Cameron and Relentless Suzuki signed a deal together in which he would represent and race for them in 2008. The deal made was to ride at the North West 200, Isle of Man TT, Ulster Grand Prix and at selected rounds of the British Championship. This move afforded him a greater chance at International success. After his first test session with the Relentless Suzuki team he seemed very happy with the move. "It just doesn't get any better than this – I'm rapt! I feel privileged to ride for Relentless Suzuki team and it's a great opportunity for me. Once we'd sorted out the deal I was anxious to get out on track and try the bikes. We all know how good the supersport and superstock Suzukis are, but when I came in after riding the superbike I couldn't stop smiling. I just thought, I can definitely win on this bike. I haven't stopped smiling to be honest. It's a new challenge for me and I'm also really looking forward to riding at the British circuits in 2008."
2008 season
This season had been Cameron's most successful to date. He achieved his first podiums at the North West 200, finishing in 3rd place in the Superstock race, and a close 2nd in the main Superbike race, being passed by Steve Plater at the Juniper Chicane on the last lap. Despite missing the 2007 TT through injury, Donald returned to the island and won his first ever TT races. He won the opening Superbike race and also the Superstock race. He was in contention for the blue riband event as well, the Senior TT, but his bike suffered an oil leak while he was leading, forcing him to surrender the lead to John McGuinness. He managed to hold on to 2nd place to cap a great week for himself and the Relentless Suzuki by TAS Racing Team.
2015 season
Donald joined the Valvoline Racing by Padgetts Honda Team to contest the 2015 Isle of Man TT races in the 600 cc Supersport class, and rode Nortons in the Superbike and Senior classes.