Great Britain's Elaine Barrett ended her quest for a Paralympic gold swimming medal by taking the women's SB11 100m breaststroke title in Athens.
It is the 27-year-old's third Games but previously she had to swim in the same class as partially sighted swimmers.
Now, racing in the SB11 class for totally blind swimmers for the first time Barrett claimed an elusive gold in one minute, 32.31 seconds.
Dave Roberts added a second gold for Britain in the men's S7 100m freestyle.
"It's not the best time but I wanted the gold," Barrett told BBC Sport.
Meanwhile, Roberts stormed to a new world record in 1:01.65 to successfully defend his Paralympic title.
The Welsh swimmer had already clinched silver in the men's SM7 200m individual medley on Sunday and has three more individual races still to come in Athens.
Matt Walker made it a British one-two in Athens to come home in the silver medal position in the 100m freestyle.
"
I don't know who I'm happier for - me or Matt
"
Freestyle gold medallist
Dave Roberts
"I don't know who I'm happier for myself or Matt because four years ago he came fourth," Roberts said.
"I've not lost this event for a long, long time now and I couldn't ask for more."
Walker added: "I trained for freestyle so I knew deep down I could get a medal."
Earlier Jody Cundy and Rhiannon Henry snatched a bronze medal apiece.
Defending champion Cundy was aiming for his third straight gold in the S10 100m butterfly but settled for bronze in a time of one minute, 01.02 seconds.
"I'm really disappointed because I came here to defend my title," Cundy said.
"I was nearly a second outside my personal best and for some reason I was more nervous then I've ever been."
Henry finished strongly but could not close down silver medallist Australian Prue Watt and took her second bronze of the Games in the S13 400m freestyle.
The Welsh 17-year-old, who claimed 100m butterfly bronze on Sunday, set a new British record of 4:49.66.