The World in 2018
Are you a Superforecaster®?
What do you think will happen in the year 2018? Here's your chance to make a forecast.
Join The Economist's World in 2018...
The SCOTUS Challenge
Every year, the Supreme Court of the United States makes decisions that have far-reaching implications for US law, politics and society. The cases on the docket ...
HFC Challenge
This GJO hosted HFC Challenge 'pre-season' has concluded.
The official Hybrid Forecasting Competition is underway! All registrants having completed registrati...
2017-2018 Vehicle Innovations Challenge
The auto industry is in the midst of a dramatic transformation: from total reliance on internal combustion engines to growing acceptance of electric and hybrid el...
Early Warning Project (2017-2018)
The 2017-2018 Early Warning Project forecasting challenge has concluded. Click h...
CFA Society Los Angeles Finance & Economics (2017)
The CFA Society Los Angeles challenges you to forecast the most important financial and economic indicators and events affecting the world, the U.S., and Los Ange...
The Oscars® 2017
Can you predict who will take home Oscar gold this year? Join our lightning challenge to forecast the winners of 11 major categories.
The First 100 Days
The Washington Post's Monkey Cage blog wants to know:
What will President T...
GJP Classic Geopolitical Challenge (2017)
Test your forecasting skills on a wide range of questions about today's most pressing geopolitical issues.
This challenge features questions like those asked ...
In the News
If it's in the news, it's on GJ Open. Forecast on questions about politics, business, technology, sports, entertainment, and anything else trending in the media.
The World in 2017
Are you a Superforecaster®?
What do you think will happen in the year 2017? Here's your chance to make a forecast.
Join The Economist's Th...
Arab Strategy Forum - State of the World 2017
What will the state of the world be in 2017? The Arab Strategy Forum is collaborating with Good Judgment, Inc. to launch a forecasting challenge about the future ...
Disruptions from Vehicle Innovations (2016)
Innovation in automaking has historically been driven by a handful of large and storied automakers. However, recent technological developments promising to accele...
Early Warning Project 2016
Help inform policymakers and NGOs on the risk of mass killing in countries around the world.
The Early Warning Project produces risk assessments of the potenti...
Monkey Cage US Election 2016
The 2016 election cycle has confounded political observers and even a few of the candidates as well. This is where you come in.
We'll start the Challenge off w...
The Economist's World in 2016
Questions about political, economic and other events for 2016. This Challenge will test the forecasting prowess of readers of The Economist's annual compi...
GJP Classic Geopolitical Challenge (2016)
Just for Fun (2015-2016)
Forecasting can be Fun! Want a break from war, economics, and electoral politics? Test your predictive abilities on a range of questions about sports, entertainme...
Polarization v. Prediction: Iran (2016)
Philip Tetlock and Peter Scoblic argue that asking falsifiable questions and forecasting on them has the potential to moderate polarizing policy debates because a...