But Adlington, the fastest woman over the distance this year, could only finish in seventh.
Swimmer Rebecca Adlington won a bronze instead of an expected gold in her first race.
In her 800m freestyle race Adlington set a world record time of eight minutes 18.06 seconds.
Nineteen-year-old Adlington is honoured after becoming Britain's first woman swimmer to win Olympic gold since 1960.
Adlington, 19, from Mansfield, became the first British swimmer in 100 years to win two Olympic gold medals.
Swimmer Rebecca Adlington has taken bronze in the final of the 400m freestyle.
He is the third ambassador to be named and joins cycling great Sir Chris Hoy and swimming legend Rebecca Adlington.
BBC: Billy Connolly is Glasgow Commonwealth Games ambassador
The two Asian short-clawed otters were named Daley, after diver Tom Daley, and Rebecca, in honour of swimmer Rebecca Adlington.
Among the standouts: Great Britain's Rebecca Adlington should bring hometown fans to their feet with a gold in the 800-meter freestyle.
Adlington's battle to hold on to her 800m freestyle title will begin with heats on Thursday morning before Friday night's final.
The Brits will get to cheer on their favorite swimmer, Rebecca Adlington as she defends her gold medal in the 400-meter freestyle.
Tancock added the 100m backstroke title to his 50m gold, while Adlington took 400m freestyle gold after Thursday's victory over the 800m distance.
Adlington, 23, who lost her title to Camille Muffat of France, said she was glad she had won a medal at a home games.
And last year, Mock The Week's producers were criticised by the BBC Trust over comments Boyle made on the show about swimmer Rebecca Adlington's appearance.
"I'm finding it difficult to deal with the pressure, I'm still trying to find my feet after Beijing, " said Adlington after the 4x200m relay final.
But Adlington produced a second peerless swim in as many days to win the 400m freestyle , with Jazz Carlin swimming to bronze behind her for Wales.
Swimmer Rebecca Adlington grabbed two bronze medals in the 400-meter and 800-meter events, but she had won gold in those events four years previously and was favored for repeat victories.
FORBES: Great Britain Makes Most Of London Olympics With Massive Medal Haul
Among the guests at the garden party were Olympians, Paralympians and London 2012 officials, including swimmer Rebecca Adlington and Helen Glover, the rower who won Team GB's first gold medal at the games.
In last year's World Championships in Shanghai, Great Britain's Rebecca Adlington swam the final 50 meters of the 800m freestyle final in 28.91 seconds, .02 second faster than Ye and 19 hundredths faster than Lochte's time from the 400m medley.
Adlington took gold in a Games record time of four minutes, 5.68 seconds, well ahead of silver medallist Kylie Palmer of Australia, and the 21-year-old - who overcame days of illness to win both races - hailed her two victories in Delhi as a sign of things to come in 2011.
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