After the carnage had ended, Holzhauer earned a fitting, superhero tribute from Jennings as well.
Jennings tweeted a picture of mighty uber-villain Thanos, who memorably wiped out half the Avengers in "Avengers: Infinity War" and continued the carnage in "Avengers: Endgame."
"Actual photo of James Holzhauer walking off stage at Jeopardy, his reign of destruction completed," Jennings wrote in the tweet.
Actual photo of James Holzhauer walking off stage at Jeopardy, his reign of destruction completed. pic.twitter.com/Xdf5PFR3QD
— Ken Jennings (@KenJennings) June 4, 2019
Holzhauer paid respect right back with a tweet of his own.
"You win this round," he tweeted to Jennings. "But if Jeopardy ever gives me 43 second chance games, look out!"
To @KenJennings : You win this round. But if Jeopardy ever gives me 43 second chance games, look out!
— James Holzhauer (@James_Holzhauer) June 4, 2019
Jennings has been a great sport watching the gambling pro Holzhauer compete on "Jeopardy!," rooting for him all the way even as he neared his own 2004 record. He used words like "gobsmacked" to describe his feelings watching Holzhauer compete.
"For 15 years, I have thought somebody was gonna make a run at this record, 'cause I always knew it could be done. I was there," Jennings told "Good Morning America" last month. "I know it's been possible.
"What I did not expect was that somebody could make a run at the cash record in like a third (of) the time," he continued. "It's really just astounding, what he's doing."
This article originally appeared on USA TODAY: 'Jeopardy!' champ Ken Jennings salutes James Holzhauer's 'reign of destruction'