I've had the privilege of being a half marathon pace group leader for over 30 half marathons.  It's been a joy to lead groups to their finish time and encourage and support athletes along the way.  For me, a big part of being a pace group leader was keeping people entertained, engaged, or distracted from the distance left to go.  

Over the years I developed a personal "joke script" of jokes that I could tell at road races.  These jokes are pretty general, suitable for most audiences, and are gene...