Britain's Matt Richardson and Will Bjergfelt set track cycling world records as Charlie Tanfield fell short in his bid to break the hour record in Konya, Turkey.
Richardson, 26, became the first cyclist to clock under nine seconds in the 200m flying start - doing so in an event set up with British Cycling backing to aim for a number of world records.
His time of 8.941 seconds lowered the time of 9.088 secs, set by Dutchman Harrie Lavreysen at the 2024 Paris Olympics.
"I came here to do that [go sub-nine seconds] and that's what I did so, it's a pretty cool feeling to accomplish the one thing that I came out here to do," said Richardson.
"It was a lot faster [than I've previously ridden]. I was basically just a passenger.
"I gave the bike a bit of direction and it was just steering itself almost. I rode of lot of it outside the sprint lane, so I know there's a bit more there."
Earlier on Thursday, Bjergfelt, 46, established a new hour record in the C5 classification as he became the first para-cyclist in history go beyond 50km.
He rode a distance of 51.471km to beat the previous mark of 47.569km, set by Italy's Andrea Tarlao in 2014.
