The largest public forecasting platform of its kind—GJ Open—is the ideal place to harness the wisdom of crowds. We continue to lead the field with our innovative approach that combines collective insight with cutting-edge analytics. Whether for discovering talent, training your team, or spotting trends, GJ Open is your gateway to informed decision-making and strategic success.
Tailored Tournaments: Public or Private, Your Choice
Enhanced Insights with Custom Feedback Reports
Our team of data scientists doesn’t just aggregate data; they transform it into meaningful insights. We offer personalized feedback reports for individuals and groups, providing a deeper understanding of forecasting performance and areas for improvement.
Trusted by Industry Leaders
Our reputation speaks for itself. Leading media companies, top-tier investment funds, and prestigious universities have leveraged GJ Open to sharpen their foresight and strategy.
Are you a Superforecaster®? What do you think will happen in the year 2025? Here’s your chance to forecast. In our 10th annual collaboration with The Economist and its annual publication previewing the year ahead, we invite you to take part in The Economist: The World Ahead 2025 challenge to test your ability to predict the outcome of political, economic, and cultural events featured in its pages.
To be eligible to win this challenge, you must forecast on at least 22 of all the questions launched in this challenge through its conclusion at the end of September 2025. The winner will be published in The Economist in late 2025.
Featured Challenge Questions
Do you think you have what it takes to be a professional Superforecaster®? Best forecasters on GJ Open compete for a chance to join the ranks of Good Judgment’s professional Superforecasters. Read about the selection process here.
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