VIDEO: Phelps Wins Eighth Olympic Gold

The 23-year-old American had already won more gold medals than any other athlete at the Olympics.

Michael Phelps held his arms aloft on Sunday after surpassing Mark Spitz as the most successful swimmer and Olympian of all time, relief written on his face after he won an unprecedented eighth gold at one Games.

Afterwards, he said he just wanted to hug his mum.

Despite Phelps' heroics, the U.S. team has all but lost the battle with China to top the medals table.

With wins in badminton, diving, gymnastics, rowing, shooting, table tennis and wrestling, the hosts reached 35 golds to the Americans' 19, already three ahead of their Athens haul with more than seven days of competition to go.

In 2004, the United States topped the table with 36 golds.

There was more track delight for Jamaica, with a clean sweep of the medals in the women's 100 metres to go with compatriot Usain Bolt's dazzling world record display in the men's sprint.

Shelly-Ann Fraser grinned and punched the air as she crossed the finish line then leapt and danced for joy.

Nobody doubted it was Phelps's day, though.

The swimmer hugged his team mates after a world record-breaking 4x100 metres medley relay win, a relatively comfortable race compared to two finger-tip finishes in Beijing.

The win gave him his eighth gold at these Games, one more than Spitz in 1972, and his 14th in all, five more than anyone in the Olympics' 112-year history.

SCREAMING FIT

The 23-year-old, who as a child in Baltimore had a screaming fit at his first swimming lesson because he did not want to get his face wet, showed that he was human after all.

"The first thing I'd like to do to my mum is just hug her, said Phelps, whose parents separated when he was young.

"I've literally seen her for about 30 seconds this whole time."

Phelps overcame attention deficit disorder as a child. In Beijing he again showed his strength of character to overcome intense pressure. After his exploits, he said wanted to lie down in his own bed for five minutes "and just relax".

"It's been nothing but an upwards rollercoaster but it's been nothing but fun," he added at his moment of triumph, embracing his tearful mother and sister. "With so many people saying it couldn't be done, all it takes is an imagination."

The Water Cube saw more excitement in the evening as China's "diving diva" Guo Jingjing retained her three-metre springboard crown to become the most prolific women's diving medallist in history. She now plans to retire, with four Olympic golds.

The hosts have now taken all five of the diving golds awarded so far, with three to come.

As China extend their lead at the top of the medals table, it has also been a fantastic weekend for the London 2012 hosts, on the water and on two wheels.

Britain have scored eight gold medals in two days in cycling, rowing, sailing and the pool, taking them to third place in the medals table with 11 golds. The British press was already dubbing it "the great haul of China".

Sunday, day nine, was the busiest of the Aug. 8-24 Games, with 34 golds on offer. It began with a triumph for Romania in one of the Games' most gruelling events, 38-year-old Constantina Tomescu claiming a surprise win in the women's marathon.

NADAL'S YEAR

The tennis tournament wrapped up with more glory for Spain's Rafael Nadal. He won the singles in straight sets to add to his Wimbledon and French Open crowns.

There had been consolation for Switzerland's Roger Federer with a doubles gold late on Saturday, and America's Venus and Serena Williams also made up for singles disappointment by picking up a second doubles gold.

Elena Dementieva beat fellow Russian Dinara Safina to the singles crown, saying it was the greatest moment of her career.

In the highest-profile doping case of the Games, Greece's defending women's 400 metres hurdles champion Fani Halkia failed a drug test hours before she was to compete.

The furious chief of Greece's Olympic Committee told Reuters the "golden girl" of the Athens Games should have stayed home instead of dragging the country's name through the mud.

"If you want to commit suicide it is up to you, but you do not have the right to kill your country," Minos Kyriakou said. There was disappointment and a terrible sense of deja vu for U.S. shooter Matt Emmons, who threw away gold for a second successive Games with a misfire on his final shot.

After shooting at the wrong target in Athens, a nervous Emmons this time squandered a huge lead on his final shot when he pulled the trigger by mistake while lining up.

That error let China's Qiu Jian take gold in the men's 50m rifle three-positions. Emmons finished fourth. "I didn't feel my trigger shaking but I guess it was," he said.