James Holzhauer: Meet the record-breaking 'Jeopardy!' champion

James Holzhauer, the current reigning “Jeopardy!” champion, is on a 21-day streak, the second-longest in the show's history, with $1.6 million in winnings.Holzhauer has broken nearly every “Jeopardy!” record, including the most money a player has ever won in a single game on the show.Here's what we know about Holzhauer, from his professional gambling background to his lifelong preparation for his run on “Jeopardy!”Visit Business Insider's homepage for more stories.Current reigning “Jeopardy!” champion James Holzhauer knows how to play the odds. The 34-year-old professional sports gambler is on a 21-day winning streak, the second longest in the show's history.He's broken nearly every “Jeopardy!” record and raked in $1.6 million so far.Holzhauer sits in second place for all-time regular-season earnings to Ken Jennings, who won 74 games in a row to take home $2.5 million in 2004, Business Insider's Aylin Woodward reported. Holzhauer won $850,000 of his “Jeopardy!” earnings in just over a dozen episodes. At that rate, he'll earn $2.5 million in less than half the time Jennings did, according to The Atlantic's Joe Pinsker.Slate dubbed Holzhauer the Serena Williams of “Jeopardy!” Tonight, he'll take to the buzzer for the 22nd time.Here's what we know about Holzhauer and his plan of attack.