of the United States", "World's Championship Series", or "World's Series" for short. In his book Krakatoa: The Day the World Exploded: August 27, 1883...

The World Series is the annual championship series of Major League Baseball (MLB) and concludes the MLB postseason. First played in 1903, the World Series...

The World Triathlon Championship Series is World Triathlon's annual series of triathlon events used to crown an annual world champion since 2008. There...

(together with the UK Championship and the invitational Masters) that make up snooker's Triple Crown Series. The reigning world champion is Kyren Wilson...

are used. The Superbike World Championship is the official world championship series, though national Superbike championships are held in many countries...

The World Chess Championship is played to determine the world champion in chess. The current world champion is Ding Liren, who defeated his opponent Ian...

for a given season's "World's Championship Series" had been whatever the two participating clubs had agreed upon. The World Series was not a compulsory...

annual championship series of the National Basketball Association (NBA). The Eastern and Western Conference champions play a best-of-seven-game series to...

The modern World Series, the current championship series of Major League Baseball (MLB) between teams of the National League and the American League,...

The World Sportscar Championship was the world series run for sports car racing by the FIA from 1953 to 1992. The championship evolved from a small collection...