Over 3200 metres the horse trained and driven by Australian Luke McCarthy was able to pull off an upset.
From the 1400m mark Kingman was three wide but McCathy was unfazed.
"You're going in a straight line whether you're one wide or three wide it's not a big deal but I just wanted to get next to them and try and just get him to sit there you leave it until to late you get pushed off the track so full credit to the horse," McCarthy told Trackside.
Kingman was a late entry to New Zealand Trotting Cup after beating Leap To Fame in the Victoria Cup last month.
As one of the few Australians to win the race, McCarthy described the New Zealand Trotting Cup as the "mecca for harness racing".
Leap To Fame trained and driven by Queenslander Grant Dixon finished second.
Merlin was third and Better Knuckle Up fourth.
Kingman receives $540,000, second $150,000, third $85,000, fourth $47,500, fifth $27,500, while all other starters receive $15,000.
