The biggest challenge for many triathletes is dialing in that darn half marathon run. Â If your half marathon run time in a triathlon is slower than your regular half marathon time (10% Â or more), then I would recommend working on learning to run under load, the essence of triathlon running. Â
The audio(8:23) below explains a workout that can really help sharpen your half ironman running.  Commit to 3-4 weeks of this before your next half ironman and you’ll definitely notice the difference.