PUERTO PRINCESA CITY — John Alcala put up a strong finishing kick to capture the men's overall crown in decisive fashion but Singapore's Ling Er Choo proved a lot tougher and stronger, bucking the heat and dominating the women's side in the inaugural IRONMAN 70.3 Puerto Princesa here on Sunday.

Alcala came out of the opening swim leg at the Baywalk Park at joint sixth but chased early leaders Fer Casares, Dutch Eric van den Linden and Satar Salem with a third-best time in bike before pouring it out in the closing run part to rule the 1.9-kilometer swim-90km bike-21k run in four hours, 32 minutes and 20 seconds at the Ramon Mitra Jr. Sports Complex.

Third in the IM 70.3 Cebu last August, Alcala turned in a fast 1:29:11 clocking in the final leg that indeed decided the outcome of the grueling race that looked headed to a scrambling finish until the TRI SND Barracuda spearhead, who timed 34:52 in swim and 2:24:22 in bike, charged home with that scorching run in hot conditions.

Mervin Santiago of Sante Barley TRI team and Jailani Lamama wrested control after the bike stage but both failed to keep in step with the big-striding Alcala with the former ending up second in 4:37:23 with leg times of 34:04 (swim), 2:21:13 (bike) and 1:37:46 (run) and the latter settling for third in 4:39:46, including 31:30 in swim, 2:24:49 in bike and 1:38:57 in run.

But the day belonged to Choo, who hardly impressed after emerging fourth in swim (32:58) but lived up to the event's title after storming ahead with a stirring 2:34:22 clocking in bike then darting home to victory in 1:45:10 in run for a total clocking of 4:57:46.

She beat Leyann Ramo (5:18:53) by 20 minutes while Guam's Mieko Carey wound up third in 5:19:53.

"It was hot and that was a challenge. The volunteers and everyone were so helpful they got me to the finish line. I'm so thankful," said Choo, who described the closing run leg as the toughest and most challenging.

"I think the running back (was the hardest) when you can see the road going up and down on the run. But it's a good pain," she added.