Adam Peaty wins 100m breaststroke gold in world record time
Wales' Jazz Carlin wins 400m freestyle silver 14 minutes later
USA's Michael Phelps wins relay to claim his 19th gold
Murray brothers and Williams sisters out of tennis doubles
Djokovic loses in tennis singles first round
This tournament is heading in the wrong direction for Britain's men - Hayden Phillips is given far too much space and fires in a superb reverse-stick strike to give the Black Sticks the lead early in the second quarter.
#bbcrio2016
Dom: I'm more confused after that explanation of the #fencing, external rules than I was before. Ignorance is bliss
It's not the easiest sport to follow, I must agree...
Women's 53kg weightlifting
Chinese Taipei's Hsu Shu-ching has won gold in the women's 53kg weightlifting competition.
Hsu lifted 100kg in the snatch and 112kg in the clean and jerk for a total of 212kg. Hidilyn Diaz of the Philippines grabbed silver while South Korea's Yoon Jin-Hee took bronze.
Chinese favourite Li Yajun failed to register a clean and jerk.
Kruse in trouble?
It has been 52 years since a GB fencer won an Olympic medal and the wait could yet run on.
Timur Safin now leads Richard Kruse 9-4.
Women's team archery
South Korea won their eighth straight women's team archery gold, beating Russia five set points to one in the final.
South Korea have won the event every time since it's introduction in 1984, but Russia won the World Championships in 2015.
But the favourites proved too strong, consistently hitting tens to take every set.
GB have been sustaining a lot of pressure as the first period draws on and they finally buckle as Kane Russell scores.
It's a lovely goal - he takes down a high, looping ball and with his second touch of the stick cracks a sot across George Pinner and into the corner of the goal.
The second quarter is just starting and you can watch here.
Women's quarter finals
Australia have beaten Spain 24-0 in the first women's quarter-final.
Great Britain face Fiji in the third tie at roughly 22:00 BST.
Follow all the action here.
Timur Safin has opened up an early 5-2 lead in this duel for bronze. Can Richard Kruse turn it around?
Women's -52kg judo
Kosovo are making their Olympics debut under their own flag at Rio - and they already have their first gold medal.
Majlinda Kelmendi has beaten Odette Giuffrida of Italy in the women's -52kg final with a single yuko. Quite remarkable really.
Russia's Natalia Kuziutina took bronze.
Kruse back on
Richard Kruse is back on the piste in his bronze medal match. Can he bag GB's first medal of the Games?
GB hockey? Archery team final? Judo finals?
Whether you want sticks, bows or ippons, you can take your pick right here.
Image source, .
Luke Reddy
BBC Sport in Rio
Meet Tony and Bart. Two guys from Netherlands who love their hockey.
They are like celebrities here and pose for selfie after selfie. They even have a set pose. As I prepare to take a snap they say "let's do a good one," and instantly adopt the same stance. It's clearly been worked on.
They say they are here to watch Dutch women's hockey.
On the Deodoro venue Bart on the left says: "There's lots of security." Tony points to "not much food at the venue".
A lot of people have flagged the latter up.
On a good note, their team beat Spain 5-0 in the women's game earlier.
Image source, .GB's Joe Clarke after finishing second in qualifying with a much-improved second run in the kayak slalom: "It was actually a worse run time-wise compared to the first without the 50-second penalty. It was quite a good indication of what I can do. It's very positive. To live that Olympic dream was fantastic."
GB's men needed a good start to their match against New Zealand after yesterday's loss to Belgium - and they've got it.
New Zealand give it away n their own area and David Condon is on hand to slot home to put GB 1-0 up early doors.
Women's team archery
Chinese Taipei have just taken the women's team archery bronze, beating Italy by five set points to three in the third-place play-off.
The bronze is only Chinese Taipei's second ever medal in the event, following a third-place in Athens in 2004.
Next up South Korea and Russia face off for the gold, with the former going for their eighth consecutive gold medal in the event.
Image source, Getty ImagesEarlier today, GB's Joe Clarke was given a 50-second penalty during his first run in the kayak slalom. It meant he dropped from first to last.
But, we're all about second chances around here, and Clarke used his second run brilliantly, recording a time of 86.95 to sit second easily qualify for Wednesday's semi-final.
David Florence also secured a spot for GB in Tuesday's canoe slalom semi by finishing top of his qualifying session earlier today.
Women's 3m synchronised diving
Wu Minxia becomes the first diver to win five Olympic titles as she wins the women's 3m synchronised springboard title with Shi Tingmao.
Wu has now won this event in Athens, Beijing, London and Rio.
Italians Tania Cagnotto and Francesca Dallape were second, with Maddison Keeney and Anabelle Smith of Australia in third.
Rebecca Gallantree and Alicia Blagg finished sixth.
Women's 52kg final
Majlinda Kelmendi is set to become Kosovo's first Olympic medalist after making her way into the women's -52kg final. She beat Japan's Misato Nakamura to make her way to gold medal contention.
Rafael Nadal wins first match
Meanwhile, over at the tennis, Rafael Nadal eased through his first round match at the Olympic Tennis Centre.
The former world number one beat Argentina's Federico Del Bonnis 6-2 6-1 to claim his first victory since the French Open in May, when a wrist injury disrupted his season.
Image source, AP