By Doyice Cotten
Hundreds of running-related events are held each year. They include 5k runs, mile runs, marathons, half marathons, and events that include other activities such as the triathlon. There is risk in all of these, but most promoters take care to manage the risk as well as possible.
In a huge half marathon/5K run in California involving about 10,000 participants, a runner collapsed seconds after completion of the half marathon and died a few minutes later (Hass v.