Swimming
Australia has won silver in the women's 4x200 metre freestyle relay team final.
World champion Katie Ledecky finished the relay more than a body length in front to win the gold for the United States.
It was veteran Bronte Barratt's last race for Australia and she set her team up for a winning, giving Australia a lead into the third leg.
Kyle Chalmers has won gold in the hotly contested men's 100 metres freestyle final.
Favourite Cameron McEvoy came in seventh.
The race before Madeline Groves won silver the women's 200 metres butterfly final just three hundredths of a second behind Spain's Mireia Belmonte Garcia.
Brianna Throssell finished last in the same final.
Both Cate and Bronte Campbell have qualified for the final of the women's 100 metres freestyle in Olympic record time.
Cate qualified for the semi-finals in Olympic record time with a time of 52:78 and she broke it again in the semi-final, taking it down to 52:71.
She qualified fastest for the final and her sister Bronte qualified fifth.
Mitch Larkin has qualified second for the men's 200 metres backstroke final. Fellow Australian Joshua Beaver finished just out of the final in tenth.
Taylor McKeown qualified fastest for the women's 200 metres breaststroke final.
Kazakhstan has won its first ever men's 200 metres breaststroke gold medal.
Dmitriy Balandin won the gold from lane eight, blowing away the favourite Japanese swimmer Ippei Watanabe.
Basketball
The Boomers have lost a tight game to the world number one, the United States' Dream Team 88-98.
The game was close, with the lead changing multiple times, but the Dream Team managed to pull ahead in the final quarters leaving the Boomers scrambling to catch up.
Patty Mills was Australia's leading point scorer for the third game in a row, shooting 30 points for the game.
The Boomers were were leading 54-49 at half time and the teams were tied 29 all at first quarter time.
The men's team has had a strong tournament so far and will be looking to take the fight to the American team, once again the gold medal favourites.
The Opals will play Japan tomorrow and the Boomers will face China on Friday, Rio time.
Hockey
The Kookaburras have beaten Great Britain 2-1 a day after going down to 0-1 yesterday.
The men's team scored two goals late in the second half breaking the deadlocked game.
Great Britain responded scoring a goal of a penalty with two minutes remaining.
The Hockeyroos have won their first match of the Rio Olympics, downing India in spectacular fashion.
The women's team won 6-1 with Jodie Kenny scoring two goals to round off 100 goals scored in her international career.
Th women will play Argentina tomorrow.
Cycling
There was heartbreak for Australian cyclist Rohan Dennis in the men's time trial when he was forced to stop while in the silver medal position to change his handlebars.
Dennis's handlebars snapped in the final 10 kilometres of the 54 kilometre race seeing him fall from second to fifth across the line.
The race was won by Switzerland's Fabian Cancellara.
Dennis told reporters afterwards he was frustrated at what he said was a rare mishap that probably cost him a medal.
"There's definitely anger, I'm not allowed to show it in some ways, I want to make sure it doesn't happen again," he said.
"You don't want to put everything into a race and have a mechanical issue ruin it.
It's done I just cannot think about it too much, my energy has to be put forward."
"These things happen, I can’t be too disappointed as it [the mechanical] is out of my control," he said.
"Gold was definitely the number one goal, I wasn’t thinking of second or third at all. But once I got the mechanical, it was all about a medal. I was just thinking medal, medal, medal.
“Podium is still very respectable and I would have been very proud of that."
In the women's time trial Australia's Katrin Garfoot finished in ninth.
Shooting
Independent Kuwaiti athlete Fehaid Aldeehani has won gold in the men's double trap shooting event.
The 49-year-old beat Italy's Marco Innocenti 26-24, winning the Independent Olympic Athletes their first ever gold medal.
Australia's James Willett finished fifth in the semi-final narrowly missing out on making it into the bronze medal match.
Rugby Sevens
Australia's men's team has lost its chance to repeat the women's gold medal success after losing to South Africa.
The team beat South Africa 12-5 in their final pool match but could not maintain the intensity against a dominant South African team.
The men's team will play Argentina tomorrow.
Rowing
High winds again forced the Olympic rowing regatta to be called off on Wednesday, with waves crashing over boats in the early morning training session on the Rodrigo de Freitas lagoon.
The day had been due to deliver the first medals of the competition with the finals of the women’s quadruple sculls and the men’s quadruple sculls.
These will now be run on Thursday – weather permitting – along with the next four finals, World Rowing Federation (FISA) executive director Matt Smith said.
A total of 22 races, most of them semi-finals, had been due to take place and a revised schedule has been drawn up with the programme expanding into the afternoon.
"The forecast for tomorrow is for less strong winds so we are reasonably optimistic," Smith said. "Everyone has been informed to be ready to race."
The rowing competition has been dogged by bad weather. Races on Sunday were scuppered when winds roiled the waters.
Sailing
Men's laser sailor Tom Burton is sitting in fifth place just over halfway through the opening series races while Jake Lilley has finished in eighth place in the Finn men's opening series.
Mathew Belcher and Will Ryan are sitting in second position in the 470 men's race four races into the opening series
Jason Waterhouse and Lisa Darmanin are sitting in fourth at the beginning of the Nacra 17 mixed race.
Carrie Smith and Jamie Ryan are 12th at the beginning of the 470 women's opening series and is in eleventh position just over halfway through the women's laser opening series.
Archery
Ryan Tyack has ended an impressive Rio campaign losing to Belgium's Robin Ramaekers 2-6.
Tyack leaves with a bronze medal in the team archery competition, Australia's first medal of any colour at these games.
Beach volleyball
Taliqua Clancy and Louise Bawden have Marleen Van Iersel and Madelein Meppelink in another preliminary pool match.
The Australian pair won the match two sets to one.
However Nicole Laird and Mariafe Artacho del Solar lost to China's Fan Wang and Yuan Yue 2-0.
Water polo
The men's team has beaten Japan 8-6 in the preliminary round match.
The women's team will face Italy tomorrow and the men will face Serbia on Saturday morning, Australian time.
Tennis
Australia's first mixed doubles match - Samantha Stosur and John Peers versus Sania Mirza and Rohan Bopanna of India - has been postponed due to poor weather.
- with Reuters
