Jahangir Khan, HI, (sometimes spelled "Jehangir Khan") is a former World No. 1 professional squash

Squash (sport)

Squash is a high-speed racquet sport played by two players in a four-walled court with a small, hollow rubber ball...

 player from Pakistan, who is considered by many to be the greatest player in the history of the game. During his career he won the World Open six times and the British Open

British Open Squash Championships

The British Open Squash Championships is the oldest and most established tournament in the game of squash. It is widely considered to be one of the two most prestigious tournaments in the game, alongside the World Open The British...

 a record ten times. Between 1981 and 1986, he was unbeaten in competitive play for five years. During that time he won 555 games consecutively, the longest winning streak

Winning streak (sports)

In sports, a winning streak refers to a consecutive number of games won. A winning streak can be held by a team, as in baseball, football, basketball, hockey, or by an individual, as in tennis...

 by any athlete in top-level professional sports as recorded by Guinness World Records

Guinness World Records

Guinness World Records, known until 2000 as The Guinness Book of Records , is a reference book published annually, containing a collection of world records, both human achievements and the extremes of the natural world...

.