Adam Peaty qualified for the men’s 50m breaststroke final but Great Britain missed out on medals in two finals on day three of the World Championships.
Peaty, 29, swam 26.85 seconds to qualify for Wednesday’s final in Doha.
Fellow Britons Lauren Cox and Kathleen Dawson finished fifth and sixth, respectively, in the women’s 100m backstroke.
Meanwhile, Duncan Scott finished sixth in the men’s 200m freestyle final on Tuesday.
The 26-year-old recorded a time of one minute 45.86 seconds in the event in which he won silver at the Tokyo Olympics in 2021.
Compatriot Tom Dean took gold on that occasion but did not compete in Qatar, with several of the world’s top swimmers opting not to participate in the Worlds and instead train for this summer’s Paris Games.
However, double Olympic champion Dean did make a brief appearance on Sunday – as part of Britain’s 4x100m freestyle relay team along with Jacob Whittle, Matt Richards and Scott as they qualified for an Olympic quota spot.
Another Briton, Jack McMillan, did not feature in the 200m freestyle final after going out in the heats on Monday.
Peaty, the world record holder in the 50m event, is competing at his first Worlds in five years after taking breaks to deal with periods of depression and problems with alcohol.
He recorded a time of 27.23 in the heats but later improved on that in the semi to qualify in fourth and will go for a 12th world medal in the final.
Australia’s Sam Williamson (26.41), Italy’s Nicolo Martinenghi (26.65) and America’s Nic Fink (26.77) were the three fastest qualifiers.
Three-time Olympic champion Peaty had marked his return to the world stage with a bronze medal in the 100m breaststroke on Monday.
Later, Britain’s Cox swam the 100m backstroke in 59.60 with Dawson finishing in one minute 0.42 seconds while American Claire Curzan (58.29) took gold.
Both will also feature in the 50m backstroke heats on Wednesday.
Cox, 22, took world bronze in that event last year while 26-year-old Dawson was part of Team GB’s 4x100m mixed medley team that won gold and smashed the world record in Tokyo.
Max Litchfield missed out on qualification for the men’s 200m butterfly final, swimming one minute 56.93 seconds in his semi-final to finish 12th, four places outside the final spots.
