That total always appeared on the small side, but after reducing Central to 49-4 in the 17th over, the visitors forced their way back into contention. That, however, was when Clarkson came to the crease.
His clean striking was clear from the start of his innings, joining captain Tom Bruce (51no off 84) for what became a match-winning stand of 167. Clarkson collected 17 fours and two sixes as he blasted his third list A ton, finishing unbeaten on 111 from 78 balls as the Stags cruised to their target in the 44th over.
Central will now have a chance to earn a second title in a week — and again upset Canterbury. The Stags need 15 points from their final Plunket Shield clash of the season against Auckland — starting in Nelson on Saturday — to overtake the inactive Cantabrians and add the first-class crown to their one-day trophy.