How's maiden Twenty20 century, brought up in 45 balls, was the fastest in New Zealand domestic Twenty20 history, beating the record of 51 balls previously held by Martin Guptill and Chris Harris, and the equal-13th fastest of all time.
Central's 17 sixes were the equal-second most a team had struck in a Twenty20 behind Namibia's 18 against Scotland last year.
CD's total of 222-2 was their second-highest in the HRV Cup, the third highest in New Zealand domestic Twenty20 history and the second-biggest total at Pukekura Park behind New Zealand A's 227-6 against the England Lions in 2009.
In between all the records being set, Ingram departed in the 17th over and How followed three balls later as the Central innings lost momentum towards the end.
It didn't matter in the long run as their huge total proved far too great for a Wellington side who have looked a long way off the pace throughout the competition and finished with a dismal record of two wins, seven losses and one abandoned fixture.
Youngster Michael Pollard further enhanced his growing reputation as he struck 53 from 35 balls in the ill-fated chase, but only James Franklin (27) looked like lending a hand.
Each of the Central Districts bowlers who took to the crease picked up a wicket and seamer Doug Bracewell was particularly impressive as he nabbed 3-21 from four overs.
Wellington ended up stumbling to 169-9 from their 20 overs and will be eager to return to the 50-over form of the game and put the HRV Cup behind them.
Northern Districts host Otago in the final round-robin game in Hamilton tomorrow, although the result has minimal bearing on the competition. Runaway leaders Auckland will meet Canterbury in Sunday's final at Colin Maiden Park.