Great Britain's Phil Norman is away in steeplechase heats now, which you can watch on BBC Red Button.

It is just after 9:30am in Tokyo and pushing 30 degrees, so these are tough conditions out there.

It's New Zealand's Emma Twigg in the lead after 500m.

Vicky Thornley is in fifth position.

James Cracknell
Double Olympic Rowing gold medallist on BBC TV

The good thing for Vicky is that she is next to Twigg from New Zealand. If she can stick with Twigg then she'll be right in the mix

Here we go!

The final of the women's single sculls is under way.

ROC’s Hanna Prakatsen has been the in-form rower this season, while New Zealander Emma Twigg has finished fourth in the past two Olympic single sculls finals...

Sir Matthew Pinsent
Four-time Olympic rowing champion on BBC TV

Vicky Thornley - her expectation and goal would have been to make the final - and once you're IN the final, then you can switch gears.

Lay it all down on the line and then maybe some magic can happen.

It's almost time for the final of the women's single sculls.

Vicky Thornley is just the third British woman to reach a single sculls final at the Olympics.

A huge moment for her.

Over in the boxing, it's quarter final day.

First up, it's the women’s light round of 16, with Ireland’s Kellie Anne Harrington, the 2018 world champion, facing Italy’s Rebecca Nicoli from 03:00 BST and Great Britain’s Caroline Dubois takes on the USA’s Rashida Ellis (03:30 BST).

In the men’s welter quarter-finals, Great Britain’s Pat McCormack meets Uzbekistan’s Bobo-Usmon Baturov at 04:36.

Later on, in the men’s light-heavy quarter-finals, Ben Whittaker fights Brazil’s Ken Machado (05:24).

The men's high jump, featuring Tom Gale in group B, is just getting started.

And what about beyond that?

The men's steeplechase features Phil Norman, in heat one, and Zak Seddon in heat two from 01:30, and that is followed by Lawrence Okoye in discus qualification.

Keely Hodgkinson, Alex Bell and Jemma Reekie aim to progress in the women's 800m heats from 02:25, before Dina Asher-Smith, Asha Philip and Daryll Neita go in the women's 100m heats around 04:15.

Elsewhere, Norway’s new world record holder and double world champion Karsten Warholm begins his 400m hurdles campaign.

BBC Radio 5 Live

BBC Radio 5 Live also have you covered throughout the night.

Here is a reminder of how Vicky Thornley made the final, which is around 20 minutes away.

Jed Michael: Foolishly stayed up until the start of the Olympics coverage. Now have no choice but to watch the endless stream of wonderful sport all night...

Hattie Shaw: Staying up solely to watch Dina run!!! Best of luck!

Great to have you on board, Jed and Hattie!

The first medal event on the final day of rowing at Tokyo 2020 is the women's single sculls, featuring Team GB's Vicky Thornley.

Doubles silver medallist alongside Katherine Grainger in 2016, Thornley's big moment comes at 01:33 this morning.

Not long to wait for that one at all!

The athletics action is just getting under way in Tokyo!

It all begins with the women's 100m prelims, before the men's high jump qualification starts at 01:15 BST.

That features GB's Tom Gale in Group B, which also includes two-time reigning world champion Mutaz Essa Barshim of Qatar.

Steve Cram
BBC athletics commentator

We haven't always had somebody with a chance of if not winning it, certainly winning a medal. Dina knows that she's going to have to be at her best, but she's in my top three.

We all know Shelly-Ann Fraser-Pryce, we all know Elaine Thompson. Dina is becoming a big name.

This is what Dina Asher-Smith is up against in her quest for 100m glory.

Jamaican Shelly-Ann Fraser-Pryce has posted the fastest time this season with 10.63, edging out compatriot Elaine Thompson-Herah's 10.71.

Dina Asher-Smith's 10.91 places her 10th.

Image source, .

The women's 100m has been billed as the biggest draw of the Tokyo 2020 Olympics.

The heats get under way tonight, with Dina Asher-Smith bidding to become the first British woman to win an individual sprint gold at a Games.

Asher-Smith is the fastest British woman in history, a world and four-time European champion and was an Olympic bronze medallist in the 4x100m relay in Rio.

The heats run from 03:40-04:30 BST, while the semi-final takes place on Saturday at 11:15 and the final stars later that day (13:50).

Marcus Rashford MBE: Staying up to watch Dina Asher Smith. if you know me 100m was always my bag. Still got it too.

You know the drill by now.

I want you to get involved with your thoughts, feelings and reactions to all tonight's Olympic action.

How are you feeling after a week of late nights and limited sleep trying to ensure you don't miss a moment? What are you most looking forward to tonight?

Get in touch via #bbcolympics - I look forward to hearing from you!

BBC One

The opening day of the eventing is under way and you can watch that live on BBC One right now.

The three-phase sport of eventing kicks off with the dressage, where British world number one Oliver Townend, on Ballaghmor Class, begins his debut Olympics shortly.

British rider Laura Collett, and London 52, go at 0954 BST, immediately followed by the USA’s Phillip Dutton who is riding at his SEVENTH Olympics. Impressive.

The third member of the GB team, Tom McEwen, goes in tomorrow’s group.

Simon Gleave
Head of sports analysis, Nielsen Gracenote

After six days of Olympic competition in Tokyo, Great Britain has 18 medals including five golds. This beats the 16 medals (four golds) won at this stage five years ago in Rio. At London 2012, 15 medals were won in the first five days including five golds.Only London 1908 has produced more medals in the first six days of medals being awarded - but those six days were spread across April, May and July when the Games had a totally different format. In addition, Great Britain provided around a third of the 2,200 or so competitors.

In both 2012 and 2016, Great Britain had 22 medals at the end of the seventh day of medals so there is a fair chance that this year won't be the highest.