Adam Gemili continued his preparations for this summer's Commonwealth Games with two record-setting performances at the weekend's Bauhaus Junior Gala in Mannheim, Germany.
The Dartford sprint star, 20, stopped the clock in a UK leading 20.20secs over 200m on Sunday, less than 24 hours after the former Dartford Grammar School pupil tore away to finish his 100m heat in 10.04secs, shaving a hundredth of a second on his Personal Best, set two years ago this week.
The 200m result was the second fastest by a European runner this year while the 100m time was third-best by a UK runner in 2014.
Gemili's Blackheath & Bromley AC teammate Dina Asher-Smith from Orpington confirmed her position as the rising star of British sprinting by setting a new national junior record for the 100m on Saturday.
The 18-year-old Orpington star, who will run at the World Junior Championships in Oregon, USA, later this month, won her race in a fine 11.14secs - also the fastest in the world by a female junior this year and the fourth-fastest of all-time by a British woman of any age.
She stormed to victory in the final in a time of 11.03secs, though the 2.2m wind reading meant it did not qualify as a new PB and British senior women's record - by a margin of just 0.2m per second.
Asher-Smith claimed double sprint gold in the European Junior Championships last year and was part of the GB women's 4x100m relay team which claimed bronze in the senior World Championships in Moscow last August.
Asher-Smith also helped the GB Junior 4x100m relay team to victory in 44.66 on Sunday.
Another Oregon prospect, 17-year-old Shannon Hylton of B&B won her 200m heat in a wind-affected 23.33secs while twin sister Cheriece Hylton ran 53.54 for fourth in the 400m.
Meanwhile Invicta East Kent AC prospect Bobby Clay won a junior 1,500m race at the Diamond League meeting in Lausanne, Switzerland, on Wednesday.
The 17-year-old led from gun to tape, stopping the clock in 4:18.27, with fellow Brit Amy Griffiths finishing fourth in 4:21.71.