Outside of a marathon, the best way to test people's endurance is to see how long they can listen to a radio play-by-play of a marathon. Take on a real challenge with this Groupon.
$15 for a Tour de Grove 5K Race Entry ($30 Value)
The Tour de Grove 5K will be held at the NCC Tour de Grove race course on Saturday, May 12, starting at 9 a.m. All 5K participants receive a race-day T-shirt.
Big Shark Bicycle Company
The cycling enthusiasts at Big Shark Bicycle Company cultivate a collection of bike-related products, events, and classes to cater to cyclists of all levels. They stage a variety of races and events including runs, triathlons, criteriums, open water swims, weekend recreational rides, classes, clinics, and special events. And, to help riders keep their bikes in shape, Big Shark Bicycle Company also offers classes on repairs.