BOOM! And so begins perhaps the most unique spectacle in all of endurance sports — the Ironman swim start. Nearly 2500 bodies and 5000 arms and legs churning the water to start a 140.6 mile day. Below are our tips for surviving, and excelling at, the Ironman swim.

BOOM! And so begins perhaps the most unique spectacle in all of endurance sports — the Ironman swim start. Nearly 2500 bodies and 5000 arms and legs churning the water to start a 140.6 mile day. Below are our tips for surviving, and excelling at, the Ironman swim.