Elizabeth Hudson
BBC Sport's Paralympics reporter in Rio

Superb riding from Megan Giglia who gets a well-earned drink after her gold medal win - Britain's first of the Games.

She has a broad smile on her face and it's a proud moment for the former fitness instructor who has seen her life change after a stroke in January 2013.

Let's hear from the first British Paralympic gold medallist at Rio 2016.

Megan Giglia tells Channel Four: "It hasn't sunk in yet. I wouldn't be here without my team-mates, and my back-up team behind me.

"I didn't think I would make it to Rio and I thought it was a bit ambitious but I wanted to give it a go.

"Within the British camp everyone is hyped up and ready to go. I have another three events to go so I will enjoy the races with my legs peddling as fast as I can."

Mark Colbourne
Paralympic cycling gold medal winner

That was an unbelievable catch from Megan. She had 12 laps and could have taken her time but to get her just before the line is brilliant. Well done Megan!

Giglia holds a lead of more than six seconds after the opening 1,000m. Can the Brit catch her competitor to win gold?

Mark Colbourne
Paralympic cycling gold medal winner on BBC Radio 5 live

It was a great world record by Megan in qualification this morning. For someone so new to the sport to come into this environment in front of a big crowd and with so much going on, she did really well and showed a lot of composure.

Britain are guaranteed a medal in the C1-3 3000m individual pursuit after Megan Giglia beat her own world record by clocking 4:03.544.

She races American Jamie Whitmore in the final..

It has already been a Paralympics to remember for Megan Giglia. She has only been involved in cycling for three years and she set a world record earlier today in the heats.

Megan Giglia could become Great Britain's first gold medallist of the Paralympics Games. So here's a bit more information about her. 

In January 2013, she was working as a fitness coach when she had a stroke which left the then 27-year-old with restricted movement down her right side.

She took up cycling as part of her rehab and joined the British Cycling development programme in 2014, making her international debut last year.

She won double gold in March's UCI Para-cycling Track World Championships in Italy, setting new world records in both the 3km pursuit and the 500m time trial in her C3 category.

Did you know? Giglia is a former regional officer for Badminton England and used to be a wall-climbing instructor.

Image source, Getty Images

Great Britain's name does not appear on the medal table yet, but that will change in the next 10 minutes. And it could well be gold.

Megan Giglia is guaranteed at least a silver medal and is racing American Jamie Whitmore in the velodrome in the women's C1-3 3,000m individual pursuit.

Both Dame Sarah Storey and Baroness Tanni Grey Thompson have won 11 Paralympic gold medals, with Storey going for her 12th inside the next hour.

Elizabeth Hudson
BBC Sport's Paralympics reporter in Rio

Back at the Velodrome for the evening session and four guaranteed medals for Great Britain. Dame Sarah Storey goes up against team-mate Crystal Lane in the Women's C5 3000m individual pursuit, debutant Megan Giglia is in the Women's C1-3 3000m pursuit decider with the tandem pairing of Steve Bate and Adam Duggleby in the Men's B 4000m pursuit final.

Storey, Giglia and the tandem pair all set world records in the morning session and there is more exciting racing in store in this later session.

Of course, victory for Storey would see her get a 12th Paralympic gold medal and beat the record of Baroness Tanni Grey-Thompson (who is working for BBC Radio 5 live here at the Velodrome) and become the most successful British female Paralympian of all time.

Image source, Getty Images

As always we want your thoughts and observations about the action tonight in Rio.

Who are you looking forward to seeing and why?

Tweet us using the hashtag #bbcrio2016 and we will put the best messages on this page throughout the night.

It is a busy, busy night in Rio and these are some of the early British competitors and times to look out for later on (all times BST).

20:37 - Megan Giglia (track cycling, women's C1-3 3,000m individual pursuit final)

21:19 - Sarah Storey v Crystal Lane (track cycling, women's C5 3,000m individual pursuit final)

21:44 - Oliver Hynd and Josef Craig (swimming, men's 400m freestyle S8 final)

21:45 - Jonnie Peacock (athletics, men's 100m T44 heats)

21:45 - Steve Bate and Adam Duggleby (track cycling, men's B 4,000m individual pursuit final)

21:47 - Kyron Duke (athletics, men's shot put F41 final)

21:54 - Stephanie Millward (athletics, women's 400m freestyle S8 final)

Image source, Getty Images

Rio 2016 is well under way and it all kicked off with a big Brazilian party at the Maracana. 

There was plenty of drums, dancing and colourful clothing as Rio taught us we all have the same heartbeat in their showpiece puzzle. 

You can read more on the dazzling display here but first, check out this awesome backflip from extreme wheelchair stuntsman Aaron 'Wheels' Fotheringham. It's pretty epic! 

Good evening and welcome to BBC Sport's coverage from the first night of competitive action at the Rio 2016 Paralympics.

We have a busy evening ahead on the athletics track, in the velodrome and in the pool.

Dame Sarah Storey could become the most successful British female Paralympian ever tonight, with Megan Giglia, Jonnie Peacock, Bethany Firth and Jon Fox among those also in action.

Image source, Getty Images

We've had the party...

Image source, Getty Images

...we've had the fireworks...

Image source, Getty Images

...and now it is time to get down to business. It is guaranteed to be a gold-medal winning night for Great Britain, and there could be some history made as well.