Stacie Powell and Jack Laugher registered personal bests as they both celebrated wins at the British Gas Diving Championships.
Powell was left in tears as she upset her higher-profile rivals to collect gold in a hotly-contested women's 10 metre platform title. Laugher's victory was far more straightforward as the 17-year-old underlined his rising status which could see him star at the Olympics in the men's 3m springboard.
It was Powell's victory that left a capacity crowd roaring, though, as she snatched victory with the final dive to edge out favourites Tonia Couch and Monique Gladding with a personal best 376.05.
"I'm really, really pleased with my performance," said Powell. "Up there for that last dive, I knew being the last diver I had to do it well.
"I knew I could do it. Although it was easy to think of what it meant and the pressure that was on me I just tried to stay focused. I thought I'd just show everyone that I was ready to start peaking for the Games."
The 26-year-old, who studies astrophysics at Cambridge University, was mobbed by well-wishers after her victory which left her in tears.
"When everyone comes up and rushes up to you and all the months of training have been made worth it," she said. "A home Olympics will mean everything."
Laugher posted a personal best of 480.80 in Saturday morning's preliminary round.
While the 17-year-old was unable to replicate it in the final he continued to impress in a breakthrough year that has seen him surge into the world's top eight.
"This morning I was a bit overwhelmed. I couldn't believe I got such a big score and a PB," he said.