Four-time world champion Leanda Cave of Great Britain led the swim in 26:13 which gave her a 43 seconds advantage over Heather Jackson, 1:37 on Linsey Corbin of the U.S., 1:45 on Pamela Tastets of Chile, 2:16 on Nicole Valentine of the U.S., 2:21 on Sarah Cameto of the U.S. and, important to the ultimate result, 4:42 on strong cyclist-runner Sarah Piampiano of the U.S. who trailed Jackson by 3:59.

By 67km, Jackson forged a 3:06 lead on Piampiano, 4:13 on Cave and 4:20 on Corbin. After a 2nd-best 2:17:26 bike split – which gave back 38 seconds to Piampiano who posted a women’s-best 2:16:48 ride. Starting the half marathon, Jackson had a 3:31 lead on Piampiano, 5:20 on Corbin and 5:57 on Cave.

Halfway through the run, Jackson maintained a 4:06 lead on Piampiano, 5:02 on Corbin and more on a fading Cave. After a women’s 3rd-fastest 1:25:14 half marathon, Jackson hit the tape in 4:12:41 with a 2:57 margin of victory over Piampiano (women’s 2nd-best 1:24:39 run split (and 4:17 on Corbin (women's-best 1:24:07 run). Cave ran 1:28:12 to take 4th, 9:20 after the winner.

Like Jesse Thomas, Piampiano had better bike (2:16:48 to 2:17:26) and run (1:24:39 to 1:25:14) splits but lost her race in the swim (30:55 to 26:56).

The win puts Jackson back on the winning track in 2017 after a 4th place at Ironman 70.3 California.

Men