I know nothing of Ironman training. I have trained to be a (slow) marathon runner, and I am really shocked at how low his running miles were. He said he was running between 2 and 12 miles for each run. He mentions a bone bruise that I guess severely limited his run training. Only two tiny runs between March and October! I would not think his bike and swim training would be able to compensate for near total lack of runs. He must have a fabulous baseline of fitness to complete a marathon and the rest of iron man like that.