Ross Haslam won bronze in the men's 1m springboard final to add to Great Britain's medal tally at the World Aquatics Championships.
Haslam, 26, scored a combined total of 393.10 to secure his first Worlds medal.
On Friday, GB won gold in the mixed team event and Grace Reid took silver in the women's 1m springboard event.
Haslam, who won the European title in the same event last year, said he was delighted with his performance after a series of injury setbacks during his career.
He added: "I honestly can't believe it. I felt like I knew I was capable of doing it, I just didn't necessarily believe that it would happen for me, so I'm dumbfounded."
Haslam will next compete in the 3m springboard event which begins on Tuesday and includes qualification for the 2024 Olympic Games in Paris.
Also in Doha on Saturday, GB's Leah Crisp secured her qualifying spot for the Games this summer by placing 17th in the women's 10km open water race.
The World Aquatics Championships take place from 2-18 February.