Some athletes take their time finding a second act. Denis Buckley has gone straight for the hard mode version. After a 15-year career built on front-row collisions, brute force and repetition, the former Connacht loosehead prop completed his first Dublin Marathon in three hours and 36 minutes. That is not just respectable for a debut; it is flat-out impressive.
There is a simple reason this stands out. Buckley spent his rugby life in one of the most punishing jobs on the pitch, where huge physical strength, explosive power and the willingness to absorb contact are part of the contract. Running 42.2km is a different kind of test entirely, and for a 36-year-old who only stepped away from professional rugby at the conclusion of the 2025/26 season, this is a sharp reminder that elite athleticism can travel surprisingly well.
From front-row punishment to marathon endurance
Buckley’s rugby timeline tells its own story. He made his senior debut for Connacht against Benetton Treviso in 2011, went on to make 275 appearances, and was part of a side that won the PRO12 title by defeating Leinster in the final at Murrayfield in 2016. Connacht Rugby’s tribute at the end of his career made the scale of that contribution clear: 17 years, 275 games, and a reputation that marked him out as a true legend of the West.
That is the background. The Dublin Marathon result is the headline. Three hours and 36 minutes is a serious time for anyone, let alone someone making the jump from professional rugby to endurance running. It is also the sort of performance that makes a lazy assumption look foolish. People love to act as if a prop’s career is all raw power and no aerobic base. Buckley has just shown that a long career in the engine room can still leave plenty in the tank.
Of course, this is not a claim that rugby and marathon running are the same thing. They are not. But that is exactly why Buckley’s effort is so notable. He has moved from a position defined by repeated collisions into a race where pacing, discipline and stubbornness matter from start to finish. The contrast is almost absurd, which is part of the fun.
And in a sporting world that is always looking for the next eye-catching transition, this one is easy to appreciate. A former loosehead prop, fresh from professional retirement, turning in a strong debut at the Dublin Marathon is the kind of story that earns its own respect. It does not need embellishment. The time says enough.
