Designing a challenge is a first step in putting together an innovation competition. In order for the innovation competition to be successful and attract enough audience, a team of organizers should define the main challenge of the competition, how to select winners, judges, what is the selection process along with other details. Intentionally designing the challenge can enable you to systematically design open innovation events and reveal innovative ideas worth developing. Designing the challenge allows you to set the ambitions and constraints of a challenge for an innovation competition. By doing so, you can help ensure the responses to the innovation competition will be fit-for-purpose to take on the challenge at hand. Additionally, these kind of constraints can help innovation competition applicants think creatively within the bounds of what would be helpful.