The Idiotarod is a shopping cart race in which teams of five or more "idiots" with a (sometimes modified) grocery store shopping cart run through the streets of a major metropolitan area. The carts are usually themed and feature people in costumes. The races are fun competitions where sabotage, costume, and presentation, and other efforts are rewarded; some cities offer a "Best in Show" prize.[1] Sabotage, such as tripping competitors, throwing marbles or large obstacles in their paths, and the spreading of misinformation such as false route information, were common in the early years. A push for "leave no trace" actions has been promoted recently.

The Idiotarod is named after the Iditarod, a 1,000 mile dog-sledding race in Alaska.