The 20-year-old, who is enjoying a fairy-tale first campaign as a permanent diver on the tour, held his nerve with the final dive of the day to make it two wins and two third-place finishes from six rounds this year.
“I’ve been in this position before, first place going into the last round in Boston, and that was my first-ever win. To be in the same position again I just had some anticipation about what could happen,” said Heslop.
“And the same thing happened again. I knew that last dive needed to be good and I hit it the way I know I can.
“I’m just so happy. I wouldn’t call one win a fluke in this competition nowadays, but to have a second one really puts my name in the books I think.”
Consistency was key for the Brit as he produced four high quality dives over the two competition days, including the mammoth forward four somersaults three-and-a-half twists pike that propelled him to a comfortable 40-point victory over his nearest rival, Gary Hunt.
The result lifts the youngster, who competed at this summer’s Commonwealth Games, into second place in the overall standings, just 24 points behind Romania’s Catalin Preda, who finished fourth in Sisikon.
With just two stops to go, France’s nine-time champion Hunt sits a mere six points further back in what is now one of the tightest and most exciting title fights in years.
“It’s pretty tight at the top with these other divers, so to get a win has really bumped me up there,” said Heslop. “I’ve just got to dive the same way I did in the next two competitions.”