The 31-year-old athlete and actor successfully lifted a 501-kilogram (1,104 pounds) barbell on Saturday for two seconds during an online livestream at his personal training gym, Thor’s Power Gym.
English strongman Eddie Hall set the previous deadlift record in 2016 at the World Deadlift Championships. He lifted 500 kilograms (1,102), according to the Associated Press.
On his record-breaking lift, Bjornsson told ESPN that while he was happy, he thought he could have done more.
“I believe today I could’ve done more, but what’s the point? I’m happy with this,” he said
In 2018, Bjornsson won the title of world’s strongest man.
American strongman Martins Licis claimed the title in the annual competition last year.
The World’s Strongest Man event was set to take place at the end of May in America, however, as a result of the ongoing coronavirus pandemic, an “at-home” edition of the tournament will be streamed via Snapchat beginning on May 4.
With the exception of the third, Bjornsson portrayed The Mountain in every season of Game of Thrones, appearing in 24 episodes.
The fearsome knight was known best as the Queensguard to the notorious Cersei Lannister and the older, rival brother of Sandor (The Hound) Clegane (played by Rory McCann).
Reflecting on his most recent accolade, Bjornsson took to Instagram, writing that he had “no words.”
“What an amazing day,” he wrote. “One I will remember for the rest of my life. I said I was coming for it and once I set my mind on something I’m a dog with a bone.”
— With files from the Associated Press