Is there anything longer than an Ironman? An ultra-triathlon is a long-distance triathlon. The term generally refers to all triathlon events with a distance that is a multiple of the Ironman Triathlon, which consists of 2.4 miles (3.86 km) of swimming, 112 miles (180.25 km) of cycling, and a full marathon (26.2 mi or 42.2 km) of running.
How much harder is a full Ironman than a half? As the chart shows, moving from an Olympic to half Ironman in terms of the swim is less than a 30% increase in distance. However, the bike and the run distances increase by more than double. Then by definition the full Ironman is twice the half Ironman distance.
Should I do a 70.3 before Ironman? One of the most frequently asked questions I see in this role is: “Should I race an Ironman 70.3 before my full Ironman?” The short answer is that completing a 70.3, while a good idea if properly scheduled, is NOT a prerequisite for finishing an Ironman.
What is the hardest part of the Ironman? Unless you’re a world class swimmer, you’re going to need to train hard to swim 2.4 miles. Not everyone can do that. And the bike is definitely the hardest part.