Welcome to

Good Judgment® Open

Share your Superforecaster moment and check out the latest edition of the Good Judgment Open Newsletter to read about how forecasting questions are made and more.

Tired of political punditry? Use your own judgment. Join the Monkey Cage's US Election Challenge to predict the key questions in this year's election.

Want to train your employees to be Superforecasters? Learn more about our Superforecasting Solutions and how we can help provide the training and practice your organization needs.

Start keeping score.

Are you a Superforecaster®? Can you predict the future better than the pundits in the media? Put your probability where you mouth is and join Good Judgment Open, the only site for those who are serious about forecasting.

GJ Open is more than a game. It’s the best possible place to hone your forecasting skills. We’ve designed GJ Open specifically to help you improve your forecasting abilities. Make a forecast, explain your reasoning (and be challenged by others), and find out how you stack up against the crowd.

From the future of US politics to international affairs, from technology to sports and entertainment, there's bound to be something in your wheelhouse.

Still not sure? Check out our active challenges, our featured questions, or browse a list of all questions on GJ Open.

Sign In

Forgot Password?