It wasn't to be. Six deliveries, two wickets and four runs later, Cavaliers were 2019-20 champions.

Several weeks ago, the Saints were dead and buried for season 2019-20, with their fate in the hands of Bathurst City, whose victory over Lithgow Lightning elevated St Pat's into the top four.

With skipper Adam Ryan set on 43, four wickets in hand and only a couple of boundaries needed to ensure victory, Cavaliers skipper Matt Corben threw the ball to Mitch Black for his third and final over, and the final six balls strangled the Saints' chances.

It was a see-sawing encounter where both sides shared times with the game in their hands.

St Pat's stormed out of the gates early with ball in hand as Mitch Taylor (4-19) took knocked over the top three, bowling Bailey Ferguson second ball before having Hugh Middleton and then former teammate Ben Mitchell caught.

Taylor, who took another wicket in his final over and was named man of the match, was as scintillating as he was two weeks ago in the semi-final.

He relegated Cavaliers to 3-17 before Kaleb Cook (14 from 20) and Corben (45 not out from 46) rebuilt the innings, bringing the score to 56 before the former knocked one straight down Ben Cant's throat at gully. '

Connor Slattery cleaned up Angus Cumming, but Charlie Greer (34 from 31) and his skipper were like sheepdogs between the wickets, running several threes and hitting only six boundaries between them to put on 49 to drag Cavs to a defendable 124.

It was those extra runs between the wickets which would prove the difference, too, as Saints came out all guns blazing trying to pierce the field to find boundaries instead of turning ones into twos.

Greer (2-13) backed up his form with the bat with a brilliant four-over opening spell while Gus Cumming nabbed the wicket of Andrew Brown (17) to have the Saints 2-10 and then 3-26 in reply.

Ryan looked comfortable for his 42-ball knock but couldn't find someone to stick with him as Slattery (12 from 23) and Jameel Qureshi (13 from 12) couldn't get set, and Ben Parsons (17 from 10) was caught on the boundary shortly after dispatching Black for the only maximum of the evening.

With Cant on strike to start the last over, all he had to do was get Ryan down the other end, but he was stumped by the quick glovework of Corben first ball, and third ball Taylor provided a carbon-copy replay to be stumped for a duck and 11 runs still needed.

When Ryan did eventually get on strike, his side needed nine to win from one delivery, of which they ran three for Cavaliers to claim the crown.

Corben couldn't be happier after the game, having lost "a handful" of grand finals in the last few years but said he was stoked the side was halfway to success for the season with BOIDC finals to come - but he admitted he was "nervous as anything" ahead of the final over.

"We had a chat as a leadership group and decided Mitchy Black was the way to go and jeez he finished it off well, he's one bloke you want to give it to in the last over," he said.

"Lucky enough they ran past a couple [to be stumped]."

Black said grand final pressure had got to his young top order but it didn't matter as the side "got the job done" off the back of middle-order batting.

"A couple of young blokes up the top will benefit from it but we got the job done, it doesn't matter," Corben said.

"I was hitting the ball well, it was good to dig the team out of a bit of a hole, me and Cookie did well to dig us out there."

He also lauded the efforts of Greer with both bat and ball as a "red-hot" pickup from Kinross in the off-season, but added the win would give the side confidence heading into the BOIDC finals in three weeks time.

"Every game you win in pressure situations you'll be better off. You can't train for that kind of thing."

Saints skipper Adam Ryan said it was disappointing not to go back-to-back in the cup, but was proud of his charges and supporters for giving their best shot up the highway.

"I'm still proud of the boys, it was a ripping contest and as I said a couple of weeks ago the toss is really important and we just couldn't find the gaps or the boundaries which left too much to do at the end there," he said.

"To get within to six runs was a great game and a great contest and put on a show for the crowd which is what you want."