The Big Blue Square: A Tool for Optimal Sports Per...
Photo: David finishing sub-9 hours at the Quelle Challenge in Roth, Germany in 2007 (Photographer: Courtney Johnson)
This past year was an outstanding year for me as an athlete - I set personal best times in both the marathon and Ironman-distance triathlon while winning the Vineman Triathlon overall at the age of 36, an age when most athletes would be considered “over the hill.” There were a number of things...

