Kerrigan finished second overall in the sprint event held at the Dragon Leisure Centre.
The city athlete clocked 1.07:52 for the race, which forms parts of the Cornwall Triathlon Series, with a 5.21 minute swim, a 39.52 minute cycle ride and a 20.22 minute run.
Cycle logic’s David Bartlett won the competition in 1:04.34.
Plymouth Harriers’ Ross Farrer clocked the fastest run with a time of 18.47 as he finished fifth overall in 1:11.25.
Noble (pictured above), competing in her first triathlon, came third female overall and second in her age category. The Plymouth Tri Club member finished in a time of 1:22.58.
There were a large number of city athletes competing. To view full results of the event click HERE