Resources

Lessons on pacing, nutrition, training and race-day execution from Andy and the Tritanium coaching team.

Articles

Ironman Racing

10 Brutal Ironman Truths Every First-Time Athlete Needs to Know

What more than 20 years of endurance coaching and racing Ironman has taught me about pacing, nutrition, mental resilience and getting to the finish line.

13 October 2026 · 17 min read

Tools

Free calculators to work out your swim, bike and run training zones and predict your race times.

Triathlon Race Predictor

Predict your triathlon race splits and finish time from your Swim CSS, Bike FTP/Critical Power, and Run Threshold Pace.

Swim CSS Calculator

Calculate your Critical Swim Speed (CSS) and training zones using your 200m and 400m time trials. Perfect for triathletes and swimmers.

Bike FTP Calculator

Find your cycling Functional Threshold Power (FTP) and training zones from your 20-minute test. Includes endurance, tempo, and VO2 max ranges.

Bike Critical Power Calculator

Calculate your cycling Critical Power (CP) and W′ (anaerobic work capacity) from two maximal time trials of different durations.

Run Threshold Calculator

Determine your running threshold pace and training zones based on a 20-minute time trial.