Career
He prefers fast, flowing circuits, and tends to get his best results on them. Seeley raced motocross in his teens, but "found pubs, clubs and girls" in his late teens and lost interest for a few years. He began circuit racing in 2000 in club events in Northern Ireland.
Seeley first came to wider attention by taking two wins in the 600cc class of the British Superbike Championship"s Mondello Park round in 2004.
He also did some racing in America. Superstock 1000
Foreign 2007 he moved to the United Kingdom finishing tenth overall in the British Superstock Championship on a Yamaha.
He improved to fourth in 2008, also taking his first North West 200 victory in the Superstock class and winning the Monarch of Mondello title for the biggest payday of his career. In 2009 he dominated the championship for the Relentless TAS Suzuki team, winning the first nine rounds and sealing the title with three rounds to spare, regularly setting what would be competitive lap times on a Superbike.
He finished the season with two outings on an Evo Class Suzuki GSX-R1000, doing enough to earn a full-time ride for them in the main class.
British Superbike Championship 2010
Seeley made a flying start to his 2010 campaign, qualifying third and finishing third and fourth in the opening meeting at the Brands Hatch Industry circuit. He scored consistent points in the early part of the season, although his second podium did not come until round 13 at Snetterton. British Supersport Championship 2011–
Foreign 2011 Seeley chose to stay with Relentless TAS Suzuki which meant that he was demoted to the supersport class.