This is an archived site and is no longer being updated. New 538 articles can be found at www.abcnews.com/538. The final match of the 2016 Haru Basho — one of six professional sumo tournaments held each year — was a day-15 championship-deciding showdown between the sport’s top yokozuna.1 Hakuho, the White Peng,2 the dominant force in sumo over the past decade, was 13-1 in the tournament and hadn’t

Bernie Sanders during a campaign stop on Thursday at the Pennsylvania AFL-CIO Convention in Philadelphia. Matt Rourke / AP Bernie Sanders’s supporters are fond of the hypothesis that Democratic superdelegates, the elected leaders and party officials who currently support Hillary Clinton by a lopsided-doesn’t-even-begin-to-describe-it 469 to 31, are going to bow to the “will of the people” if Sande

Baseball data collected the old-fashioned way, at a spring training game between the San Diego Padres and the Chicago Cubs on March 15. Darron Cummings / AP Every March since 2012, sabermetricians have gathered in Phoenix for their own version of spring training: the SABR Analytics meeting, which serves as a showcase for some of the latest developments in baseball analysis. I made the pilgrimage t

This is an archived site and is no longer being updated. New 538 articles can be found at www.abcnews.com/538. Updated 1:24 AM | Mar. 2, 2016 What Went Down On Super Tuesday Filed under 2016 Election By FiveThirtyEight

This is an archived site and is no longer being updated. New 538 articles can be found at www.abcnews.com/538. FiveThirtyEight’s World Cup forecasting model uses ESPN’s Soccer Power Index (SPI) — a system that combines game- and player-based ratings to estimate a team’s overall skill level — to calculate odds of each country’s performance during the two stages of the World Cup. The probabilities a