Dame Sarah Storey made it 60 World Championship medals as she won three golds in a single day at the International Cycling Union Para-Cycling Track World Championships in Milton.
The British rider, who is also a 14-time Paralympic champion across cycling and swimming, captured the women's C5 individual pursuit, C5 scratch race and C5 omnium titles at Mattamy National Cycling Centre.
She beat team-mate Crystal Lane-Wright at half distance in her individual pursuit final as she added to her list of honours.
"It feels amazing, to win three in one day is just a bit of a dream to be honest," Dame Sarah said to BBC Sport.
Her golden treble was matched by Australia's Emily Petricola, who captured the women's C4 individual pursuit, C4 scratch race and C4 omnium crowns.
"Today was some sort of day," Petricola, who beat compatriot Meg Lemon in her individual pursuit final, said.
"It's hard to articulate the feelings when you walk out of the velodrome cradling three rainbow jerseys and the gold medals to match.
"An ambitious goal realised."
Elsewhere, Ricardo Ten Argilés made it two gold medals in consecutive days as he continued his good form in Canada.
The Spaniard triumphed in the men's C1 15 kilometre scratch race after completing 60 laps of the banked track.
It was a very different gold medal to the one he claimed in the quick-fire C1 200 metres time trial yesterday, which he won in a world record time.
Ten Argilés, who lost both arms and his left leg below the knee after coming into contact with high voltage power lines as a child, won three Paralympic gold medals as a swimmer and switched to cycling in 2017.
In the men's C4 individual pursuit, Jozef Metelka of Slovakia beat Carol-Eduard Novak of Romania, with the C5 title going to Dorian Foulan of France over Lauro Cesar Mouro Chaman of Brazil.
Britain won gold in the men's tandem time trial as Neil Fachie and pilot Matthew Rotherham clocked 59.724sec.
The women's tandem event was also won by Britain as Sophie Thornhill and pilot Helen Scott ended in 1:04.953.
Maurice Far Eckhard Tio won another gold medal for Spain in the men's C2 scratch race while the women's C1-C2 scratch race went to Australia's Amanda Reid.
Xiaomei Wang of China won the women's C3 scratch race.
The Championships conclude in Milton tomorrow.