Leinster power past Cardiff for first win of the season

Leinster are up and running. The reigning United Rugby Championship holders beat Cardiff 29-5 in Dublin on Saturday, 10 October 2026, for their first victory of the 2026-27 season.

The bonus-point win came at the revamped Laya Arena, watched by a crowd of 20,600, according to BBC Sport. Leinster had started the season as champions defending their title. They needed this one.

Leinster scored five tries. A try, worth five points, comes from touching the ball down over the opposition line. Hugo Keenan, Jimmy O'Brien, Jack Conan and Jamie Osborne shared them, with O'Brien grabbing two.

Sam Prendergast added two conversions. That is the kick at goal taken after a try, worth two extra points. Cardiff’s only reply was a try from Mason Grady.

It was one-way traffic early. Leinster led 22-5 at half-time and never let Cardiff back into it. Simple handling, quick rucks and too much pace out wide did the damage. A ruck is the contest for the ball on the ground after a tackle.

Cardiff did not help themselves. Scrum-half Aled Davies was sin-binned in the 16th minute, meaning ten minutes off the field and his team down to 14 men. The visitors had arrived in Dublin with seven changes to their side, as noted by Cardiff Rugby, but they could not live with Leinster’s tempo.

There was a celebratory feel to the night beyond the score. Laya Arena is the former RDS Arena, redeveloped at a cost of €52m. This was a homecoming of sorts. The game was listed by the league as Leinster Rugby versus Cardiff Rugby on 10 October, with Cardiff naming Sam Grove-White as referee and a 19:45 kick-off in Dublin, per the United Rugby Championship.

For fans, this means relief more than anything. Champions do not like winless starts. Leinster still had to earn it, but five different scorers and a shut-out in the second half will settle nerves quickly.