Danny and Colin discuss the 2025 World Championships (Men's and Women's) and give their hot takes on the new Kona qualification system.

Key Takeaways

Norwegian Dominance: The Norwegian team's success (winning both men's and women's titles) is attributed to a high-volume training model (25–30+ hrs/wk) that prioritizes threshold work and year-round altitude training, contrasting with the lower-volume, high-intensity USAT approach.

Women's Race Drama: The women's race was an epic battle of tactics. Lucy Charles-Barclay's aggressive, race-dependent strategy led to a late-race DNF, while Taylor Knibb's controlled, course-dependent strategy collapsed ~3k from the finish due to heat exhaustion. Kat Matthews set a new run course record (2:49:00) to finish a close second.

New Kona Qual System Flawed: The age-graded qualification system is failing. It heavily favors the Men's 55–59 age group on flat courses (e.g., 9 of 40 slots at IM California) while making it nearly impossible for women to qualify without an age-group win. This creates an unbalanced championship field.

Topics

World Championship Race Recaps

Men's Race (Nice):

Winner: Casper Stornes (Norway), who executed a smart, patient marathon.

Norwegian Team Strategy:

Training: High volume (25–30+ hrs/wk) with a focus on threshold work, not VO2 max.

Support: Year-round altitude training and a strong team dynamic.

Youth Development: Encourages high volume from a young age, a direct contrast to USAT's approach.

Race Highlights:

Sam Laidlow: Overcame a poor swim to finish top five.

Matthew Marquardt: Finished top 11 despite cramping issues.

Amateur Course Issue: Roads were not fully closed to traffic, causing safety and performance issues on descents.

Women's Race (Kona):

Winner: Solveig Løvseth (Norway), who ran a consistent 2:55:00 marathon.

Key Performances:

Lucy Charles-Barclay: Aggressive race strategy led to a late-race DNF from heat exhaustion.

Taylor Knibb: Controlled race strategy (using a real-time CORE body temp sensor) collapsed ~3k from the finish.

Kat Matthews: Set a new run course record (2:49:00) to finish second, 35 seconds behind Løvseth.

CORE Body Temp Sensor:

Function: Provides real-time core temp data to a watch.

Application: Used by Taylor Knibb to manage heat; Christian Blumenfeld reportedly stayed in Zone 2 during his record-setting IM Texas marathon.

Recommendation: Prioritize core temp data over heart rate in hot races.

New Kona Qualification System

Mechanism: An age-graded algorithm ranks all athletes against a Men's 30–34 benchmark.

Younger athletes → time added.

Older athletes → time subtracted.

Impacts & Flaws:

Men's 55–59 Age Group: Heavily favored, especially on flat courses.

IM Maryland: Top 3–4 age-graded finishers were M55–59.

IM California: M55–59 took 9 of 40 slots (23%).

Women's Qualification: Severely limited.

Outcome: Women must win their age group to have a realistic chance of qualifying.

Projected Kona Field: ~15% women, with most being age-group winners.

Race Dynamics: Removes on-course racing relevance, as an athlete's adjusted time is unknown.

Proposed Solutions:

Gender-Specific Algorithms: Use separate benchmarks for men and women.

Proportional Allocation: Distribute slots based on the gender ratio at each race.

System Adjustment: Ironman should adjust the algorithm mid-season to fix the imbalance.