He also attended Christ The King catholic high school and broke numerous records in school mile races held at Victoria park, Southport. He finished 8th in the 800m final at the 2006 European Athletics Championships in Gothenburg. Finished 2nd in his first European Cup in Munich (2007).
Michael was also a former sports scholar at Liverpool John Moores University. His personal best is 1:43.89 (lowering his previous mark by over half a second) which he set in Rieti in 2010. This places him 6th on the "United Kingdom all time list" and is the fastest by any British athlete in over 17 years.
Rimmer"s build-up to the Games was disrupted by food poisoning, which he picked up at the holding camp in Macau.
The Southport runner comfortably came through his first-ever Olympic race in 1:47.61, despite having lost almost 7 pounds (32 kg) because of his illness. In August 2009, Rimmer competed in the World Championships, held in Berlin.
Rimmer looked promising throughout the heats of the 800 m, and after squeezing through his previous round he was well down the field in the semi-final in a time of 1:46.77.
Originally a member of Southport Waterloo Air Corps, he defected to rivals Liverpool Pembroke Sefton, who he still now races with.