Noah Lyles won his second gold of the Tokyo world championships on Sunday after anchoring the USA team to victory in the men's 4x100 metres relay.
The American quartet of Christian Coleman, Kenny Bednarek, Courtney Lindsey and Lyles clocked 37.29sec.
Canada bagged silver in 37.55sec, with the Netherlands taking bronze in 37.81.
USA quartets have so often been plagued by baton handover problems in recent championships that it was almost a rarity to see them perform so smoothly.
"We all know we are the fastest. We just had to get the baton from start to finish," said Lyles.
"When Christian passed the baton I knew it was a done deal. I saw the lead we had and it was a kind of a relief as everybody did such a great job.
"I just had to finish the race. They made it easy for me. I could ha