Matt Chilton
Commentator on BBC TV

There are spectators lining the side of the course. That's going to help the athletes along, especially Kenji Nener of Japan, who is in the front group.

Image source, Reuters

Whatever the outcome, Jonny Brownlee has made it clear that the Tokyo Games will be his last.

The London 2012 bronze and Rio 2016 silver medallist wants to move up in distance to half-Ironman and Ironman.

"I've absolutely loved it but after Tokyo I'll be ready for a new challenge," the 31-year-old told BBC Sport.

"I've been doing the same thing for a long time - the same races in the same places - and although the Olympics has been amazing, I'm ready for a change and if anything, the long distance will suit me more."

Matt Chilton
Commentator on BBC TV

Morgan Pearson is struggling a little. He's unable to get on the back of the chasing group.

Image source, Getty Images

This is all taking place in and around the Odaiba Marine Park - a popular urban resort on a small man-made island - where swimming, ironically, is usually prohibited.

The park has a 12.5m-high replica Statue of Liberty and fantastic views of Rainbow Bridge, which connects Odaiba with mainland Tokyo. The venue has a long relationship with triathlon, hosting Japan’s national championships for more than 20 years.

Team GB
Team GB

GB's medal hopes rest with Jonny Brownlee and Alex Yee.

Two-time reigning champion Alistair Brownlee admitted defeat in his battle to qualify for Tokyo in June.

Struggling with an ankle injury, the 33- year-old – already off the pace – was disqualified for dunking Chase McQueen during the swimming leg. He is now going to focus on long- distance triathlon – aka Ironman.

If you're just joining us, the men's Olympic triathlon suffered a rare false start. A 56-strong field lined up on a pontoon in Tokyo Bay for the 06.30 local start. The race got underway safely around 10 minutes later.

James Danson: Talk about organised chaos!!!

Marshall James: Most embarrassing false start ever

BBC One

BBC One is on through the night to bring you action from the Olympics. They're showing the men's triathlon now followed by Adam Peaty's final, with JJ Chalmers in the presenter's chair. From 04:00 BST, Dan Walker and Sam Quek will guide viewers through the early day three action.

GB triathlete Non Stanford is in the studio watching the race - and was surprised by that bizarre start.

"I've never seen that - definitely not in the Olympics. Hopefully the guys who did jump in, it didn't affect their race too much."

Image source, Reuters

They're out of the water and heading for their bikes.

Frenchman Vincent Luis leads with a time of 17:39 with Jonny Brownlee not far behind and in the top 10.

Alex Yee is about 30 seconds behind the leader.

We're about 15 minutes into the triathlon which has settled after a dramatic start which resulted in a false start.

Jonny Brownlee and Alex Yee are in the water at the Odaiba Marine Park along with the rest of the field.

Both have made solid starts, with Brownlee in the top 10.

Typical race durations at this level is one hour 45 minutes broken down as approximately 17 minutes for the swim, 55 for the bike, half an hour for the run and about 90 seconds in transition.

The clock continues to run in transition, making the changeover speed – known as the ‘fourth discipline’ – crucial.

Team GB
Team GB

There are 21 medal events over the next few hours and Team GB has interest in many of them.

These are just some of the highlights (all times BST):

• Happening now: Jonny Brownlee and Alex Yee are challenging for gold in the men's individual triathlon.
• 03:12: Adam Peaty defends his 100m breaststroke title. James Wilby also competes in the final.
• 07:00: Tom Daley is in action in the men's 10m synchronised diving platform final with Matty Lee.
• Later on Monday: Max Whitlock, Joe Fraser, James Hall, Giarnni Regini-Moran compete in the men's team artistic gymnastics final.

So a BIG night ahead. Anyone heading for bed now could wake up to the news Team GB have TWO gold medals.

Who's staying up to see if Adam Peaty - Uttoxeter's finest - can deliver in the pool? Are you feeling pumped? How are you planning to stay awake? Will Jonny Brownlee make podium in the triathlon? What have you made of Tokyo 2020 so far?

Tweet #bbcolympics and let's keep one another company through the small hours.

Matt Chilton
Commentator on BBC TV

Image source, Reuters

I have never seen anything like that before at the start of a triathlon - let alone one at the Olympics. What a shambles.

I say the triathlon is under way, but there has been a false start after a boat almost came into contact with some of the competitors as they dived into the water at the Odaiba Marine Park.

They're under way now.

It's approaching 06:35 Monday morning in Tokyo. Fancy a 1.5km swim? Followed by a 40km bike ride and finished off by a 10km run?

The men's triathlon is already under way and there are a couple of Brits who would love to get their hands on gold.

More about them in a bit.

TC: Well done & congratulations to Chelsie & Bradly for digging deep. Two tough cookies. Also commiserations to Jade Jones in what was a very tough opening fight. Jade is a lovely person & we have not seen the last of her or her ever growing experience. All three, be proud because we, as a nation are proud of you.

A new day. A fresh chance to claim that elusive first gold. Will it be a Monday to remember for Team GB?

Step this way to find out.

Image source, Getty Images

Image source, Getty Images

Image source, Getty Images