Tyler Butterfield had a marquee day in Kona this season. A 51:20 swim was followed up with a scorching 4:30:10 bike ride and a 2:58:22 run giving him seventh in 8:24:09. Butterfield was one of the breakthrough athletes this season as a new raft of Ironman racers emerged. We spoke to him after his race to find out when the foot went down and how he hung on.