Jenner sets Twitter speed record for one million followers

In the race for Twitter glory, Caitlyn Jenner -- who as Bruce set the Olympic world record in the decathlon -- is now first to the million-follower finish line.

Jenner on Monday set a new record by hitting one million Twitter followers in four hours and three minutes, according to a post on the Guinness World Records website -- besting the time recently set by US President Barack Obama.

"@Caitlyn_Jenner just set a new record for fastest time to reach 1 million followers on @Twitter," Guinness World Records said. Twitter did not respond to an AFP request for comment.

It took Obama about four and a half hours to get a million followers at his official @POTUS account, which had 2.54 million followers as of Monday.

Jenner's account at Twitter indicated that there were 1.28 million followers by mid-afternoon on Monday in California, where Twitter is based.

Jenner -- who in April confirmed she was transitioning to life as a woman -- unveiled her new name and look in a sexy Vanity Fair cover shoot -- drawing widespread praise, including from the White House.

An official Caitlyn Jenner page at Instagram, where the single image posted was the Vanity Fair cover, had 384,000 followers.

"Caitlyn Jenner" and the hashtag #CallMeCaitlyn quickly rocketed to the top of the Twitterverse as the top trending topic in the United States and worldwide.