22-year-old Carl Bengström has exploded during the season, and is one of Sweden's greatest athletics talents.
At the Gothenburg GP, he had a tough fight against the American Amere Lattin, but pulled away at the end and ran into the arena record 48.97.
Bengström is from Gothenburg, and of course is extra happy to break the record at home.
- It's incredibly fun.
It was a little bit what I was going for deep down today, he says to SVT.
Watch the race in the player above