No doubt about it, Jon. Yee is racing hard. Really hard.

Alex Yee's first coach penned a letter to the 23-year-old as he prepared to make his Olympic debut.

"You always made the most of every opportunity that was given," wrote Jon Horsman.

"Your enthusiasm and good energy meant that you became a role model for all our young athletes. Good luck Alex - and race hard."

How are you all doing? This is getting REALLY exciting. This is Alex Yee's first Olympics. He's at the front and looking in terrific nick.

Still a long way to go.

Annie Emmerson
Former GB triathlete on BBC TV

Alex Yee looks incredibly comfortable. Smooth as anything.

They're off their bikes and now running for the finishing line. Ten kilometres left.

ALEX YEE LEADS the Olympic triathlon.

Image source, EPA

It’s absolutely roasting on the course already with temperatures around 27° and humidity of 75%.

Pretty standard for this time of year in Tokyo mind so quite a few measures have been introduced for athlete safety.

As well as race start times being shifted to earlier in the day to avoid higher temperatures, there are extra water stations on the running course, air-conditioned athletes’ areas prior to and post-competition and medical personnel stationed every 500m along the 10km running course.

Believe it or not special paint has also been applied on the roads to reduce heat reflection.

Basically pretty much everything that can be done to reduce heat exposure is in play.

Image source, Getty Images

Vincent Luis is a two-time reigning world champion - and a man transformed from the also-ran in Beijing and London who very nearly quit in 2018.

Three years ago the Frenchman was disillusioned and made a decision to leave his training group in Reims, France to move across the pond and join the Joel Filliol training group in the United States, which included three- time world champion Mario Mola from Spain.

“I took some time off in spring 2018 and I asked myself: “I’m 30, what else can I do that I have not done yet? What do I want to do?”

"I’m not married, I don't have kids, so I had to try and get out of the comfort of my training group to join international athletes just to shake things up.”

BBC One

One more lap on the bikes and GB triathlete Non Stanford says on BBC One: "I cannot call this."

BBC One

GB triathlete Non Stanford, speaking on BBC One: "Whenever you have a fellow countryman in the pack, you can look out for each other and maybe help each other out. But at this point, between Alex and Jonny, it'll be every man for themselves. Both of them want that spot on the podium.

"I don't think they will actively try and hurt each other's chances but I don't think there will be any team tactics to help one get a medal over the other."

Alex Yee is enjoying himself. The latest times are in and he's now up to seventh.

Image source, Getty Images

Tokyo is Alex Yee's first Olympics but not his first major championship – a former runner, he represented Great Britain in the 10,000m at the 2018 European Championships (finishing 14th).

The 23-year-old relocated from Leeds to Loughborough during lockdown to be with his girlfriend – fellow triathlete Olivia Mathias – and has since stayed.

In 2017, he was involved in a bike crash, external while competing in Cagliari which left him with broken ribs and a punctured lung.

Annie Emmerson
Former GB triathlete on BBC TV

The athletes can get a little bit twitchy at this point in the race. There are sections that are a little more narrow. It's so disappointing, when you've waited so long, for it to end that way.

Terrible for Alois Knabl. The Austrian is off his bike. There's a mechanical problem - and that's the end of his race. He is distraught.

Matt Chilton
Commentator on BBC TV

Alex Yee is getting closer to the front pack. Yee has done his fair share of hard work on the bike. They are slowly but surely closing in.

This is getting interesting.

Jonny Brownlee is currently sixth - three seconds behind leader Stefan Zachaus of Luxembourg.

Alex Yee is just four seconds off the pace.

So here's the false start.

There was a boat in the way, basically. Which then reversed as the competitors entered the water. Coming close to striking a few of them.

Actually a bit scary.

Great Britain triathlete Non Stanford speaking on BBC TV: "There is potential to see both Jonny Brownlee and Alex Yee on the podium. Just to get one of them up there with the absence of Alistair will be such an achievement.

"The conditions in Tokyo are probably the biggest factor. Jonny isn't traditionally the best in the heat."