Great Britain's women broke the national record as they ran 42.21 seconds to win the 4X100 metre relay at the Diamond League meeting in Zurich.
It is the second time in 11 days Team GB have broken the record, after setting the previous benchmark when claiming gold on the same track at the European Championships with a time of 42.24.
On that night, the quartet of Asha Philip, Ashleigh Nelson, Desiree Henry and Jodie Williams helped the team to the victory, and there was only one change for Thursday's race, with Anyika Onuora replacing Williams.
Philip got the team off to a perfect start, and three smooth changeovers enabled Henry to bring the baton home as she had done not two weeks before.
This time, however, GB were up against the world's best, and not just Europe's. Finishing behind the team were Jamaica and the USA - sprint relay's powerhouses.
There was further encouragement for sprinting in the UK, in the men's individual 100m. In a high-quality field, recently crowned European champion James Dasaolu clocked 10.06 to finish third behind Jamaica's Kemar Bailey-Cole and American Michael Rodgers.
Dasaolu's training partner and fellow gold medalist from Zurich earlier in the month, Adam Gemili, finished fifth in a time of 10.13s. Asafa Powell and Tyson Gay, both having recently returned to competition after serving drug bans, finished fourth and ninth respectively.
Amos on top
Heading into the meet, the men's 800m promised to be one of the most exciting races, and it certainly delivered, with Botswana's Nigel Amos again beating world record-holder David Rudisha.
Unlike at the Commonwelath Games in Glasgow, though, the Kenyan couldn't manage second, instead finishing behind Ayanleh Souleiman of Djibouti. The win for Amos was enough to see him take the overall Diamond Race victory.
In fact, Amos was one of 16 athletes crowned on the night, with Dawn Harper-Nelson and Alonso Edward among the others
Both had been second in their respective events before the final race, but Harper-Nelson's victory in the 100m hurdles was enough to see her leapfrog fellow American Queen Harrison to the title, after Harrison had fallen late in the race.
Panamanian Edward had it much tougher, pipping rival Nickel Ashmeade to the line to win the men's 200m in a time of 19.95s, just six hundredths of a second clear of the Jamaican.
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