Chris Mitchell
BBC Sport in Rio

Some news for you, GB's Stephanie Slater has not turned up for her heat.

It's a big disappointment, she would have gone into this race as a medal prospect. 

Stephanie Millward is here for the heat and is also a medal prospect. 

Andy Stevenson
BBC Sport in Rio

Will Bayley is ready to go in his semi final against Jordi Morales Garcia of Spain.

It's not the dream para-triathlon PT4 gold medal for former swimmer Lauren Steadman, but the Great Britain competitor can be very pleased with a silver medal.

Steadman had led, but was caught by American Grace Norman on the final stage as the event made its debut at Fort Copacabana.

Team-mate Faye McClelland narrowly missed out on a podium spot, finishing fourth. 

Image source, PA

There's drama in the pool as Great Britain's Jessica-Jane Applegate breaks a Paralympic record in the women's S14 200m freestyle heats, only to see it then beaten by rival and team-mate Bethany Firth the following race.

The two will face each other in tonight's final, with Firth clocking nearly two seconds quicker than her team-mate.

Great Britain's Rhys Jones misses out on a medal in the men's T37 100m final, finishing in sixth place in 11.94 seconds.

South Africa's Charl du Toit took gold in 11.45.

Elizabeth Hudson
BBC Sport's Paralympics reporter in Rio

The GB mixed coxed four had been the dominant crew over the four-year cycle coming into this regatta and they proved their worth at the Lagoa, beating the USA by a comfortable two and a half seconds.

Once they crossed the line, James Fox let out a loud shriek of relief and joy, Pam Relph waved to the numerous GB fans while Dan Brown and Grace Clough embraced. And there was another group hug for the quartet, plus cox Oliver James once they came back onto dry land.

It is a second title for Relph, the only survivor from the crew which triumphed at 2012, but a first for the other four and they will celebrate in style on what has been a magnificent morning for the team here.

Reshmin Chowdhury
BBC Sport

They held off strong opposition from USA and Canada to make it three golds for Great Britain on day four, making it their most successful Paralympic regatta.

A great day for Great Britain.

Image source, Reuters

We've got a record to tell you about in the women's visually impaired B1 pursuit, where Lora Turnham and pilot Corrine Hall have smashed the Paralympic best by four seconds to qualify for this afternoon's final - 3:27:46 their record-breaking time.

Fresh from winning gold himself yesterday, GB's Andy Lewis is now on hand to help out with BBC Radio 5 live's coverage of the women's events this afternoon.

Mark Shardlow
BBC Radio 5 live reporter in Rio

This is already looking like the best ever rowing regatta for ParalympicsGB

Image source, Reuters

Elizabeth Hudson
BBC Sport's Paralympics reporter in Rio

That great partnership that Lauren Rowles's mum Natalie told me about earlier (see 1348 entry) has delivered in style after a battle with China.

Laurence Whiteley spent two and a half years waiting for a suitable partner to row with in this mixed double sculls event - GB Rowing frequently joked that Laurence was looking for the perfect woman!

But he has found her in Lauren Rowles and just over a year after coming together as a pairing, they are Paralympic champions.

Image source, Archery GB

Four years ago he was watching the Olympics from his couch.

Diagnosed with multiple sclerosis, Dave Phillips, 50, from Cwmbran, south Wales, had been signed off work sick.

He was given early retirement from Tata Steel later that year, and was left depressed and feeling cut off from the world.

So his wife Angie suggested he return to archery in 2013 and now he is in Rio to compete for Paralympics GB. He began his bid for a gold medal this afternoon.

Read more here.

How do you prepare for your first shot at para-triathlon glory? How else...

Tom Aggar is unable to add to team-mate Rachel Morris' gold moments ago, but it is a another medal for the GB rower as he takes bronze in the men's single sculls.

That's a great Paralympic return for Aggar having missed out on the podium at London 2012.

Ukraine's Roman Polianskyi is the gold-medal winner by some way, followed by Erik Horrie of Australia.

Image source, Reuters

Elizabeth Hudson
BBC Sport's Paralympics reporter in Rio

Rachel Morris made the decision to switch from handcycling after the London Paralympics, where she won bronze, after her gold in Beijing.

After her win, through floods of tears she said she was crying and laughing at the same time.

"I had such an appalling start out there so to come back from that is fantastic," she told BBC Radio 5 Live. "It was a hard transition from cycling but I've had massive help to enable me to do this."

Image source, BBC Sport

Nick Hope
BBC Sport's Paralympics reporter in Rio

In the same PT4 category as Lauren Steadman is veteran athlete Clare Cunningham who will be competing in her first Paralympics for 20 years!

The 39-year-old won 50m freestyle gold at the 1992 Barcelona Games where Dame Sarah Storey was her team-mate, before retiring after the Atlanta Paralympics four years later.

"The Paralympics are unrecognisable to what I remember and it's amazing to be a part of it again because when I stepped away I genuinely didn't think I would ever have the appetite to train full-time again and return," she tells me.

"I was competing with able-bodied triathletes for fun in my spare time until the sport was put into the Paralympics a few years ago and I though, well, 'why not'.

"It feels amazing, but so surreal to be here after so long since my last Games."