A heroic failure by Grant Hackett ended the Olympic swimming program yesterday, but there was more gold for the women's relay swimmers at a Games where almost every Australian medal has been won on water.
As befits a land girt by sea, 26 of Australia's 29 medals so far have flowed from water sports all eight golds (six swimming and two rowing), nine of 10 silver (six swimming, one diving, one rowing and one canoeing) and nine of 11 bronze (eight swimming, one canoeing).
The only Australian medals won away from the water are bronzes in walking and shooting, and a silver at the equestrian competition in Hong Kong.
The tally is below expectations more than halfway through the Games, but still leaves Australia fifth on the medals table.
Australia's gold medal tally is in fact level with one man's the superstar of the Beijing Games, American swimmer Michael Phelps.
Phelps cemented his place in Olympics history yesterday, becoming the first athlete ever to win eight gold medals in one Games, overtaking fellow American Mark Spitz's seven gold medals at Munich 36 years ago.
But there was further disappointment last night when Australian team flag-bearer James Tomkins, competing at his sixth Olympics, finished last with his crew in the men's eights rowing final.
But the loss that hurt most of all was Hackett's. Attempting an unprecedented third 1500m title, the distance great spent ''every cent'' he had, only to come up short against Tunisian Oussama Mellouli.
Hackett, 28, the champion at the previous two Olympics in Sydney and Athens, had to make do with silver, finishing just seven-tenths of a second behind the Tunisian, who only returned to competition, in May after a drugs ban for amphetamines.
Australia's brightest moment of the day came when the women's 100m medley team of Emily Seebohm, Leisel Jones, Jess Schipper and Libby Trickett fought off the US to capture back-to-back Olympic titles.
Their time of 3min 52.89sec lopped more than 3sec off their world record set last year.
The victory provided some compensation for Trickett.
She failed to win a medal in the 50m sprint yesterday morning despite being the world record holder over one lap.
The men's medley relay team did its best to upset Michael Phelps in the final event of his stupendous program.
But the American's brilliant butterfly leg ended up proving the difference as he won a record eighth gold medal in Beijing.
The Aussie foursome of Hayden Stoeckel, Brenton Rickard, Andrew Lauterstein and Eamon Sullivan took silver, just 0.7sec behind the new US world record.
Australia ended up with 20 medals in the pool six gold, six silver and eight bronze.
It was the swim team's biggest overall tally at a Games, but they weren't all the right colour, falling short of the record eight titles won at Melbourne in 1956 and one less than Athens four years ago. The Australian men missed out on gold for the first time since the disastrous 1976 Montreal campaign.
At the cycling track, Anna Meares broke the Olympic record for the flying 200m in sprint qualifying as she continued an astonishing comeback from a race crash that nearly left her with permanent spinal damage.
The teams pursuit squad qualified third-fastest behind world champions Great Britain and New Zealand. The women's basketball team downed European champion Russia 75-55 to put one foot in the Olympic final, a day after the Boomers stunned the Russian men. Kate Gynther's five goals steered the women's water polo team to a tense 12-11 victory against China and kept its Olympic gold medal aspirations on track. AAP