13 August, 2017
The brilliantly executed race by Chijindu Ujah, Adam Gemili, Danny Talbot and Nethaneel Mitchell-Blake gave Britain gold in 37.47 seconds, breaking an 18-year-old national record, and the world title for the first time.
Amidst the home crowd's jubilation, there was also relief at the sight of Bolt being able to walk off the track after being helped to his feet by his team mates.
In fact, he had beaten Bolt thrice in this championships - in 100m semifinals, finals (where he took a silver) and the sprint relay.
However Britain flew out of the blocks and their flawless changeovers gave them a great chance going into the final 100m as they led both the United States of America and Jamaica.
Dawn Harper-Nelson, silver medalist at the 2012 Olympics and gold medalist in 2008, took silver in 12.63 as the lone American medalist.
"I think they were holding us too long in the call room. All of us were doing our best to make that happen, but unfortunately, injuries are a part of this sport and it's devastating what happened, but we have to find a way to deal with it".
In a statement, the Jamaican team doctor Kevin Jones said Bolt had suffered cramp in his left hamstring but that most his pain ultimately came from the disappointment of losing.
"To be honest it takes so much out of me. We hope for the best for him", he added.
GETTY CHAMPS They are both quitting the track after glittering careers littered with gold medals
Blake also said Bolt had a bad feeling before the race about what the delayed start time would mean.
Instead, Tori Bowie was the unlikely first double gold medalist at the championships, anchoring the USA team to the 4x100-meter relay title ahead of Britain and Jamaica.
"Sorry I didn't get to say bye or anything, but I will be at the stadium tomorrow".
In the women's 100 metres hurdles, it will be a two-horse race with former 100 metres hurdles champion Sally Pearson of Australia going up against world record holder Kendra Harrison of the U.S. for the title.
Lightning will strike for one final time this Saturday at the London's Olympic Stadium.
Sir Mo Farah missed out on his dream double after coming second in the 5000 metres at the World Championships.
It was not the farewell Farah wanted, but he pointed to his earlier exertions in a dramatic 10,000m final as reason for lacking his usual devastating finish. "I enjoy relays more than anything". I gave it my all, as always.
Farah later said he "had nothing left" following last week's 10,000m win.