Outgoing St. Helens coach Kristian Woolf has finished his Super League stint with a premiership, guiding the Saints to a fourth consecutive Grand Win after defeating Leeds 24-12.

Despite a few shaky moments this season, the club persevered as they lifted the trophy for fourth straight season, the third-in-a-row under Woolf, and shot themselves into rugby league folklore before their coach joins Wayne Bennett at the Dolphins as an assistant coach.

Carrying former NRL players Konrad Hurrell, Sione Mata'utia, Curtis Sironen, Will Hopoate and more, the Saints simply outclassed the Leeds Rhinos and built pressure throughout the contest, snaring the Super League's quickest ever Grand Final try just two minutes into the decider.

While Leeds had their own NRL firepower in Rhyse Martin and Blake Austin, they couldn't garner enough to stop the juggernaut that is St. Helens.

Hurrell, who was rumoured to join the Dolphins before re-signing in England, scored a crucial second-half try to join Mark Percival, Matty Lees and Jon Bennison on the score sheet for the victorious side.

Five-eighth Jonny Lomax snared the Harry Sunderland trophy as the best on ground for the red and whites.

Woolf praised his side, and despite admitting it is one of his highest career moments, he believes the praise lies with the playing group.

"Of course, it's my greatest achievement. Winning my first grand final was my greatest achievement, so being able to do three in a row is absolutely outstanding," Woolf said during coverage onΒ Sky Sports.

"But, as I've said all along, it's not me, it's this group of men. They've been absolutely outstanding and they deserve everything they get.

"They deserve to be known as the best team in the Super League era - there's no doubt about that.

"You can't compare eras, in terms of who are the better players. But you can compare success and results and that's what this group deserve.

"I love the way they fight. That bond they've got, that desire not to let each other down, is certainly the best I've ever dealt with."

The playing group will earn a well-needed break to celebrate their historic victory before the nation turns its attention to the Rugby League World Cup, which kicks off in England in under three weeks time.