Gambles started with a 7th-best 24:58 swim in Boulder Reservoir that left him 50 seconds behind leading man Rafael Goncalves and 13 seconds behind Matt Chrabot, 9 seconds behind Sam Appleton and 8 seconds behind Rodolphe Von Berg.

Gambles then unleashed a 2nd-best 156:19 bike split on a likely shorter then 56 mile bike course and left him 2 seconds behind Matt Chabot (1:56:28 bike split), 34 seconds ahead of Sam Appleton, 40 seconds ahead of Von Berg, 2:04ahead of Mark Bowstead and 2:24 ahead of Chris Leiferman. And 2:42 ahead of Michael Weiss (race-best 1:55:20 bike split).

At the end of a 2nd-best 1:16:50 run split, Gambles finished in 3:41:37 with a 1:02 margin on runner-up Leiferman (race-best 1:15:40 run split), and 2:23 on 3rd-p;lace finisher Appleton (1:19:13 run) and 3:23 on 4th place finisher Von Berg (1:20:00 run).