Triathlon Hawke's Bay general manager Mike Bond said the event was a "great success" with 400 athletes swimming, cycling and running.
Bradley was the first on the bike out of Napier, and at 60km was sitting in fourth overall behind strong Bay cyclists Brendon Vesty and Josh Page who have only recently taken up triathlon. Vesty was stopped by a puncture but quickly made up time.
Page was the first on to the run but Robinson soon had a commanding lead, running the 21km in just 1:27:55. Bradley overtook fourth placegetter Vesty on the run. Vesty's time was 5:02:59.
Hastings triathlete Karen Toulmin was the second woman home in 5:08:46, just four weeks after flipping off her mountain bike while racing in Motatapu.
Toulmin was descending at speed when she hit a rock, flew over the handlebars and landed on her shoulder, damaging the joint. The first two weeks after the accident she couldn't do much other than rest and heal. With the help of physio she slowly reintroduced swimming, cycling and running.
"I'm stoked with my performance. My swim was way off where I expected it to be but that was largely due to the conditions. l had a great bike and, like most, suffered a bit on the run due to the heat," she said.