The golf world is still coming to terms with the sudden death of former PGA TOUR professional Matt McQuillan, who passed away at just 45 years old.
McQuillan died on August 5 at Kingston General Hospital in Ontario, Canada, according to an obituary published in his hometown newspaper. He was reportedly surrounded by family at the time of his death.
However, one question remains unanswered: What caused Matt McQuillan’s death?
At the time of publication, neither McQuillan’s family nor publicly available reports have revealed a cause of death. Recent reports have specifically noted that the circumstances surrounding his death remain undisclosed.
That has led to widespread interest among golf fans, particularly because McQuillan was only 45 and had remained involved in the game following his PGA TOUR career.
PGA TOUR remembers McQuillan
McQuillan’s connection with professional golf stretched back more than two decades.
The Canadian earned his PGA TOUR card through Q-School and competed on the circuit during the 2011 season. He ultimately appeared in 32 PGA TOUR events during his professional career.
His most memorable performance came at the 2011 John Deere Classic.
McQuillan closed the tournament with a spectacular final-round 64 to finish tied for third. It was the best result of his PGA TOUR career and came during a season in which he earned $582,933.
He also recorded a sixth-place finish at the Reno-Tahoe Open that year.
While those achievements established McQuillan as a talented professional golfer, his legacy went beyond tournament results.
A golfer who continued giving back
McQuillan discovered golf when he was just 10 years old after his father, Mark, introduced him to the game at Garrison Golf and Curling Club in Kingston.
He went on to enjoy a successful junior and amateur career, win Canadian junior championships, attend Oklahoma State and Georgia, and represent Canada internationally.
After his professional playing career, McQuillan remained closely connected to golf as a teaching professional.
He dedicated time to helping introduce and teach the game to younger golfers, continuing the relationship with the sport that had started during his childhood.
That part of his life has become an important element of the tributes following his death.
Family pays tribute
McQuillan’s family described him as a respected golfer, devoted son, hilarious brother and loyal friend.
The obituary also highlighted his ability to build lifelong friendships and encourage people who shared his passion for golf.
“He will be deeply missed by many,” the family wrote, emphasizing that his spirit, love and compassion would be remembered.
The family concluded its tribute with a simple message:
“Rest easy, Matty. We love you.”
Cause of death has not been confirmed
Despite growing interest surrounding McQuillan’s passing, there is currently no verified public information establishing what caused his death.
Reports that speculate about a possible medical emergency or other circumstances should therefore be treated cautiously unless confirmed by his family, authorities or another credible official source.
For now, the confirmed details are that McQuillan died on August 5 at Kingston General Hospital at the age of 45, with his family around him. His cause of death has not been publicly disclosed.
His death represents a heartbreaking loss for Canadian golf and for the many people who knew him throughout his journey from a young golfer in Kingston to the PGA TOUR.
At 45, McQuillan still had many years ahead of him. But the impact he made during his career—and the people he inspired after it—will remain part of his legacy.
For now, his family has asked the golf community to remember Matt not simply for the way his life ended, but for the person he was: a talented golfer, mentor, son, brother and friend whose love for the game touched generations of players.