Trigger continued entering the indoor bowls competition until 2011 when he tried his hand at snooker, a game he played in his youth.
"I decided to go into the snooker as well. I dropped the bowls and continued with the snooker.
"It's something I played as a teenager. I first started snooker at about 13 when my brother Graham was a member of the volunteer fire brigade in Inglewood. Most of the fire brigades had a snooker table, so at a young age I got reasonably good at it."
The retired man now has a total of 19 Masters Games medals.
Over the weekend he won a bronze in the over-65 snooker singles and a silver in the over-65 snooker pairs alongside partner John Rehman.
"Of course I'm a bit older than that. I'm coming up 73," he said.
"It's a great sport, and there were some very good participants in the snooker too."
Trigger said he kept coming back because the event was always a highlight of his year.
"Just going back and seeing the same people each time. We're all a couple of years older at this stage of life. It's good fun.
"I'd certainly encourage anyone to go. It's a great time, it really is."