Endurance Data Blog

How to qualify for the Ironman Hawaii 2020

How to qualify for the Ironman Hawaii 2020

The chance to participate at the Ironman Hawaii is a dream coming true for many triathletes. Besides the legendary competition, the competition site fascinates athletes and travellers with its breathtaking nature and of course the Spirit of Aloha. But how do you actually qualify for this race in paradise (but also through hot lava fields)?

C<sub>d</sub>A Calculator

CdA Calculator

Here you can enter temperature, altitude, tires, drivetrain efficiency and calculate the CdA for a given power output and speed.

Power to Speed Calculator

Power to Speed Calculator

Choose temperature, altitude, tires, CdA, drivetrain efficiency and calculate the speed for a given power output.

Simple Power to Speed Calculator

Simple Power to Speed Calculator

A simple version of the Power to Speed Calculator. This calculator assumes a flat course, a bike equipped with commonly used road bike tires and ideal cycling conditions (no wind, 20°C).

Best countries at the Ironman Hawaii 2018

Best countries at the Ironman Hawaii 2018

Which was the most successful country at the Ironman World Championship 2018?

A faster chain

A faster chain

When it comes to free speed, most triathletes think about disc wheels, aerodynamic helmets and expensive carbon frames. Many athletes ignore a crucial part of the bike, the chain.

Training session 1: Swimset André

Training session 1: Swimset André

At this point I would like to start with a new series and introduce different training sessions to you, which I came across in the last ten years of triathlon training.

Why you should run slow to run fast

Why you should run slow to run fast

Competitive running is all about running fast, so it is not surprising that when most people train, they train fast. But is this the best approach?

When Ironman Hawaii meets the Formula 1

When Ironman Hawaii meets the Formula 1

Have you ever wondered which nations are most successful at the Ironman World Championship in Kona? Here's a Formula 1 based nation-ranking!