Josh Kerr won the 3000m world indoor title with a time of 7:35.56 seconds, beating Cole Hocker.
He reclaimed the title he won two years ago on home soil in Glasgow.
What happened?
Kerr struck gold, enacting revenge on Hocker, who pipped him to the Olympic 1500m title at Paris 2024 Olympics.
The Scotsman finished ahead of Hocker, who took silver in 7:35.70 seconds.
Why it matters for Josh Kerr
Kerr was relieved to banish his "demons" after a grade-two calf tear in the world 1500m final in Tokyo.
He leaned on physiotherapist mum Jill to aid in his recovery.
Kerr gave his mum a shout-out on the BBC after the race, branding it a "family win".
What comes next?
The men's 3000m final was billed as the most exciting event of the championships.
Kerr's family had difficulty getting into the sold-out evening session, eventually managing to snag some tickets.
He hovered patiently behind the pack leaders, picking his moment to surge in front with about 200 metres remaining.
Kerr managed to hold off a final-stretch fightback from Hocker.
The Olympic champion Keely Hodgkinson strolled through to Sunday's women's 800m final.
Dina Asher-Smith tied her own national record, 7.03 seconds, to qualify for the women's 60m final.
She finished seventh in 7.07 seconds, revealing she and her new coach Michael Ford had tested out a technical change before the final.
Kerr's win was a significant one, coming six months after he sustained a grade-two calf tear.
He was unable to even walk himself to breakfast after the injury.
Kerr's recovery was aided by his physiotherapist mum Jill.
The 2023 world 1500m champion was overcome with emotion after the race.
Kerr's family was in attendance, cheering him on to victory.
The World Athletics Indoor Championships in Torun saw a sold-out crowd for the evening session.
Kerr's win was a testament to his hard work and dedication.
He will look to build on this victory in future competitions.
Kerr's time of 7:35.56 seconds was a significant improvement from his previous performances.
He will be looking to carry this momentum forward.