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Articles and publications tagged Triathlon across the Atmosphere.

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Given to Tri
Given to Tri
Jul 2, 2025
Ironman announces new performance-based qualification for Ironman and Ironman 70.3 World Championships
This new system, which takes effect with the 2026 qualification cycle starting this month, basically does away with the old roll-down system, in which unclaimed slots would roll down indefinitely within an age group. Ironman has a good explanation in their FAQ, but the short version is: Each race is allocated a number of World Championship slots, as before. Winners of each age group automatically get a World Championship slot. If they decline it, the slot can only roll down to second or third place. Any unclaimed slots go to a global "Performance Pool" for that race. The finish times of the remaining athletes are normalized by multiplying them by some factor for each age group, so they can be ranked together. This factor is derived for each age group from the top World Championship finish times over the past five years, and will be updated every year. The remaining slots are offered to the top finishers in this age-graded normalized ranking, and roll down until they're all claimed. For Kona, there's a single age-graded ranking including men and women; for 70.3 Worlds there are separate rankings for men and women, since they're separate races. It sounds complicated, but the examples they have in the FAQ make it easier to understand: Anne is 42, she finishes IRONMAN Kalmar in 9:19:51, giving her an age-graded finish time of 8:07:26, applying the Kona Standard of 0.8707 (9:19:51 × 0.8707 = 8:07:26). John is 43 and finishes IRONMAN Kalmar in 8:50:31, giving him an age-graded time of 8:33:42, applying the Kona Standard of 0.9683 (8:50:31 × 0.9683 = 8:33:42). Anne would rank above John in the age-graded rankings due to her age-graded time of 8:07:26 being faster than John’s age-graded finish time of 8:33:42. For me, this means any hopes I had of getting lucky with a deep roll down in my age group at a late-season race are probably dashed, but I like this change; it makes qualification fairer and more competitive. I'll simply have to git gud, or outlive everyone and qualify in the 90–94 age group.
NewsTriathlon
Given to Tri
Given to Tri
May 20, 2025
What's the water temperature at Lucky Peak Reservoir in July?
Ever since the return of Ironman 70.3 Boise was announced, I've been wondering what the water temperature would be like on race day. I know in the previous iterations of this race, when it was in early June, it was a very cold swim: In 2011 the water temperature was 11°C, and in 2012 it was so cold, people wore wetsuits on the bike, which was shortened to 24 km. So far I haven't been able to find a reliable source of historical water temperatures at Lucky Peak Reservoir to look up what it might be like in late July, but today I got an email from Ironman that states (emphasis mine): The IRONMAN 70.3 Boise 2025 swim course offers athletes a refreshing and scenic 1.2-mile swim in the pristine waters of Lucky Peak Reservoir. Starting and finishing in the easily accessible Barclay Bay area, this single-loop course provides a calm and clear environment, ideal for both seasoned swimmers and first-time triathletes. The reservoir's typical water temperatures in late July range from 64°F to 70°F (18°C to 21°C), making it comfortably wetsuit-legal for most participants. That's not so bad, that's downright pleasant! Anyway, just thought of dropping that here in case anybody else needs to Google it. Here are the actual water temperatures at Lucky Peak Reservoir on race day for every Ironman 70.3 Boise in July so far: Race Day Water Temperature July 26, 2025 19.6°C July 25, 2026 20.8°C
Half DistanceIronman 70.3 Boise