The 28-year-old from Belfast proved a class apart as he topped the leaderboard ahead of Scotland's Richie Ramsay, France's Raphael Jacquelin and England's Marcus Higley -- while American John Daly would have been joint second as well but for two closing bogeys.
"A lot of fire and rescue authorities are actually making the savings not by cutting fire and rescue posts, not by closing fire stations, but by shared operations, better joint working, and interestingly, amended shift practices, " he said.
Kaymer is the youngest player to take the top spot since Ronan Rafferty in 1989 and ended up joint 13th in Dubai along with McDowell and six other players after a closing 72.
In July a review by the Joint Committee of Primary Care Trusts (JCPCT) of 10 units in England and Wales recommended closing centres at Leeds General Infirmary, Glenfield Hospital and London's Royal Brompton.