Daryll Neita and Reece Prescod claimed the women's and men's 60m titles respectively on day one of the UK Athletics Indoor Championships in Birmingham.
Neita - who won 100m bronze at the 2022 Commonwealth Games and European Championships - finished in a time of 7.17 seconds to clinch the gold medal.
The 26-year-old beat second-placed Asha Philip by four-tenths of a second, while Alisha Rees (7.30) pipped Joy Eze (7.31) to the bronze medal.
Meanwhile, the men's race saw Prescod recover from a slow start to storm to the British title in 6.54 seconds, as 2022 champion Adam Thomas finished down in seventh with 6.71 on the clock.
Jeremiah Azu posted a time of 6.57 to win the silver, and Eugene Amo-Dadzie was just behind in the bronze medal spot with 6.61, but thoughts were spared for Medwin Odamtten, who pulled up with an injury midway through the race.
Elsewhere on day one, the men's pole vault gold went to Charlie Myers (5.05m), with the women's crown going to Jade Ive (4.35m), while the 60m hurdles titles were won by Cindy Sember (8.10) and David King (7.62).
The men's long jump saw Reynold Banigo equal his personal indoor best of 7.85m to finish first, while in the women's triple jump, Mary Elcock and Lily Hulland both posted 12.71m, but the former won the gold on countback.
Ben Knapton
