RAF Wittering exercise rehabilitation instructor Steve Robinson was among the first finishers at the Peterborough Great Eastern Run on Sunday.
Cpl Robinson was one of several runners from the Cambridgeshire station who took part in the half-marathon which attracted more than 5,000 runners.
The winding 13.1 mile route took in many of Peterborough’s suburbs and passed the city’s cathedral.
In a rare 2017 outing, the 34-year-old instructor claimed seventh place with an impressive time of 1 hour 12 minutes and 31 seconds.
Surprised at his success, Cpl Robinson said: “I’ve hardly raced at all, I think it’s having kids - they wear you out.”
Proudly supporting the Royal Air Force Benevolent Fund was the team from personnel management squadron.
Three runners, including the squadron’s officer commanding, Sqn Ldr Maggie Boyle, wore the ‘Ben-Fund’ vests.
Squadron warrant officer Gareth Williams (45), however, completed the run in the charity’s Ben Elephant costume.
Despite the heavy and uncomfortable costume, WO Williams completed the half-marathon in a whisker over two hours and 40 minutes.
First timers, Sqn Ldr Boyle and Flt Lt Sarah James, both finished in just under two hours and 30 minutes.
Engineering technician Cpl Dave Howard came home at two hours and two minutes.
Finding that last burst of energy after 13.1 miles, the 39-year-old obstacle race enthusiast literally sprinted across the finish line.
Group Captain Tony Keeling is the commanding officer at Wittering and an amateur, albeit keen, runner himself.
He said: “Running a half-marathon is no joke. It takes training and stamina to cross that finish line – especially if you are running dressed as an elephant!
“Sport is a key part of what we do in the RAF, it promotes teamwork and the fitness needed for working at home and abroad on operations.
“It’s not all about work though, you can excel at your chosen discipline, support a charity or just enjoy yourself - those are equally important motives too.
“The Great Eastern Run is a fantastic local event and all those who took part should be proud of their achievement, just as RAF Wittering is very proud of its runners.”