Playing on the championship Black Bull Golf Course, he fired a 69 off the stick for 41 stableford points to win the monthly medal.
Proud son Philip posted the score on Facebook, saying that his dad beat his age of 70 which he achieved last October.
“I was three-under after six then hung on for 12 pars, including a few up and downs,” the happy three score and ten year-old, who plays off a two handicap, said. That meant a 33 on the front nine and 36 on the run home.
The score was the result of a lot of work on the body by the veteran professional because of back problems.
“I’ve worked very hard for the last six months,” Glenn said. “Every day I’ve worked very religiously getting the back to a far more manageable state.
“Getting old is fantastic – you can finally beat your age!”
In last week’s big round, he thoroughly enjoyed playing with son James, Bob Kruger and Bryan Sinnott.
McCully senior had to play extremely well to clinch victory over Black Bull’s head professional, McCully junior, who is off a plus-five handicap. James finished with a two-under-par of 70, one behind his dad who has won many a tournament in Australia and overseas.