Great Britain’s Julie Dibens led from start to finish to take the Ironman 70.3 Boulder title today in Boulder, Colorado. Dibens swam 27:34 (4 seconds ahead of American Rebecca Witinok-Huber), biked a race best 2:12:53, then nursed a 5 minute lead right to the finish to win in 4:19:46. Prince George, B.C.’s Angela Naeth swam 31:26, biked 2:15:46, and ran a 1:32:49 half marathon to claim second place in 4:22:27. “Fun course. I need more hills on the bike. Swim is getting better,” said Naeth on Twitter. American Jessica Meyers was third (4:25:09).

The USA’s Andy Potts led out of the water (23:30), 1:12 better than the second best swim of Australia’s Stephen Hackett who passed Potts on the bike with a 2:03:14 split, but Potts reacquired the lead with a 1:16:44 run to win in 3:46:50. Bermuda’s Tyler Butterfield ran the best half marathon of the day (1:15:21) to finish second (3:49:18). Hackett ended up third (3:51:27).

Top 5 Women

1. Julie Dibens (GBR)  4:19:46

2. Angela Naeth (CAN)  4:22:27

3. Jessica Meyers (USA)  4:25:09

4. Uli Broome (USA)  4:26:58

5. Rebecca Witinok-Huber (USA)  4:30:37

Top 5 Men

1. Andy Potts (USA)  3:46:50

2. Tyler Butterfield (BMU)  3:49:18

3. Stephen Hackett (AUS)  3:51:27

4. Richie Cunningham (AUS)  3:54:11

5. Paul Ambrose (GBR)  3:54:12