James Holzhauer has dominated “Jeopardy!” like no one else since the current version of the television game show had its premiere in 1984. He won again on the episode that aired Wednesday, pushing his total earnings above $1.1 million, second on the all-time list behind the legendary Ken Jennings.

And the remarkable thing is that Holzhauer, a 34-year-old professional sports bettor from Las Vegas, has reached that mark in just 15 games; Jennings’s $2.5 million came in 74 games.

Holzhauer is extraordinarily knowledgeable, of course, but his huge scores — he now holds the top seven best daily totals in “Jeopardy!” history — come largely because of his aggressive strategy. He seeks out the high value questions first, and when he finds a Daily Double, which allows contestants to bet as much of their winnings as they like, he bets big.

[What is a spoiler? This story about “Jeopardy!” phenom James Holzhauer.]

His enormous winnings and vast margins of victory almost give the impression that he has broken the game.