Good start for Katarina Johnson-Thompson in the 100m hurdles.

The 28-year-old comes into the Games hoping to maintain the British women’s incredible Olympic run in the heptathlon – winning a medal at every Olympics since 1996.

Next up is the high jump heat in just under one hour.

Image source, Getty Images

Team GB's reigning Olympic and world champion Liam Heath is into the quarter-finals of the kayak single 200m heats.

He finished third in his heat and will race again around 04:10 BST.

Katie Reid goes in the women’s canoe single 200m heats at 0219, while Emily Lewis and Deborah Kerr are in kayak single 500m heats from around 02:40.

Colin Jackson
Two-time world 110m hurdles champion on BBC TV

That is a great start from Kat. The key factor with that is the smile at the end. She's in a better place, potentially, than she'd even expected herself to be in.

It was a very competitive race. When you feel someone right behind you, it gives you that extra push.

Kat's performance was outstanding, one of the best hurdles I've ever seen her do.

Steve Cram
Athletics commentator on BBC TV

Look at the smile on Katarina Johnson-Thompson's face! 'Yes', she says, because she wouldn't have known.

13:27 - no wonder a lovely smile broke across her face, you don't see that too much from Kat in competition. Now she's got her game-face back on, but the emotion came out there. What a start.

Image source, Getty Images

Jay Baker: I was pleasantly surprised by KJT. Considering her injury she had. What a fantastic start

James Stevenson: Kat with a big smile as she crosses the line in 13.27sec in the 100 hurdles. Really good to see. Off and running.

Wow!

Katarina Johnson-Thompson produces a brilliant performance in the first heat of the 100m hurdles in the women's heptathlon to finish first with a time of 13.27 seconds, ahead of Emma Oosterwegel and Nafissatou Thiam.

There's a big smile on KJT's face. She knows just how good that was and just how much she needed that going into these Games on the back of injury.

Just seeing the replay and she made a really great start.

BBC One

GB's Katarina Johnson-Thompson speaking in a pre-recorded video on BBC One: "It still pains me to talk about Beijing (2015 World Championships), I'm still traumatised. I had those three no-jumps in the long jump. Horrible.

"I went into hiding, I went into my mum's hotel and was crying all night. I would dwell on it. I'd wake up and it's the first thing I'd think about all the time. I'd be punishing myself. People say that I couldn't handle the pressure, I flopped on the big stage, I'm not going to win a medal. When it got to that point I thought, 'I'm a heptathlete'.

"It just followed me into the Rio Olympics. I'd do a bad javelin throw and I'd wonder what the commentators were saying, There was this toxic voice in my head. I'd just had enough, I wanted a complete change.

"I started again, looked for a new coach, moved to France. I needed to change something. I went into Doha in great form, in the best shape of my life. I knew I was going to get a great score. As soon as I hit that long jump and saw the white flag, I almost started crying. I felt so overwhelmed.

"There were a lot of times I didn't believe - I just believed other people's opinions. I proved that I'm capable of doing it on the big stage. It felt amazing."

World champion Katarina Johnson-Thompson looks back on the key moments that have shaped her career, from overcoming disappointing results and the fallout that followed, to winning world championship gold.

Image source, Getty Images

Sticking with the track for a bit now and Katarina Johnson-Thompson is about to go in her 100m hurdles heat.

The heptathlon world champion is one athlete who perhaps could have done with these Games taking place when they were originally planned because her prep for Tokyo has been hampered by injury.

One thing I've noted from this Olympics is the incredible things people are achieving at a very young age.

There's been several teenagers who have become Olympians - including almost all of these in the skateboarding right now - when the highlight of my teenage years was completing Super Mario World.

Yesterday, 19-year-old Keely Hodgkinson won 800m silver for Team GB, breaking Dame Kelly Holmes' British record, which had stood since 1995, with a time of one minute 55.88 seconds.

Watch that historic moment above.

Alan: My heart: I wonder if I'm too old to take up skateboarding? My Knees: Don't even think about it!!

Michael: So I turn on the Olympics and the commentator says, “that backside air was great” - not a sentence I can hear without giggling like a teenage boy, I’m afraid!

Heat one done and unfortunately it is going to take something special for Bombette Martin to go through.

The top eight in the heats progress to the final and with Martin's score the fourth best after one heat and with three more to come, she's going to be needing a lot of low scorers to sneak through.

Ed Leigh
Skateboarding commentator on BBC TV

That is exactly the worst thing that can happen in that trick as Bombette falls. But - a really good run.

Her grandparents built her a mini-ramp in upstate New York to try and keep her on her board during lockdown. It's her middle score that will stand, here.

Bombette Martin needs a big score in this final run. There's some good elements to it but a couple of scrappy bits too, including a tumble at the end. She scores 14.31 so her best score is 16.21.

Image source, Getty Images

Marc Churchill
Skateboarding commentator on BBC TV

That was a bit more powerful, an improvement on the first run. We can put that last mistake down to experience.

Two of three runs done for Bombette Martin. She scored 14.40 in the first and 16.21 in the second.

Siobhan: Bombette is one of the strangest names I've ever heard. But I love it.

Ian: These kids on the skateboard - so good.