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Giardini combined race-best 23:38 swim, a race-fastest 2:15:32 bike split and a 9th-best 1:23:28 run to finish in 4:07:07, with a 1:33 margin of victory over Nathan Killam of Canada and 4:44 over 3rd-place finisher Vinicio Ibarra of Mexico.

“Stoked on my first professional win at Challenge San Gil, Mexico!” he wrote on Facebook. “Led from the gun with fastest swim fastest bike for a big gap and at last a decent run.”