That was the same time as that recorded by fourth-placed Serb Milica Starovic.
Carrington is unbeaten through five world champs, plus the 2012 and 2016 Olympics in the 200m sprint event, in what is shaping as control of a single discipline to match peerless coxless pair rowers Hamish Bond and Eric Murray, who went through two complete Olympic cycles undefeated through to the end of last year.
The K4 final was a cracking contest, in which the Hungarian crew got their noses in front by halfway and held on impressively to win in 1min 29.784s, with the Germans .300s back and New Zealand clocking 1:30.215.
Those three were clearly the pick of the field, France fourth in 1.6s behind New Zealand.
She was second in the K1 500m final and dominated the K2 500m final with Ryan in a convincing display.
Carrington, 28, won three medals in Racice and now has 11 world championship medals, seven of them gold, bolstered by two silvers and two bronze.
The successes have followed strong performances by the New Zealand women's quartet at two World Cup regattas earlier this year, when they bagged a total of eight medals to suggest the country is heading for another period of quality, world class paddling to follow the men's successes of the 1980s.