We have four women here - the Olympic champion, second in the race last year, the new world record holder and a former winner.

Any one of these women have the credentials to win it.

The women's race is going to be won by Peres Jepchirchir, Tigst Assefa, Megertu Alemu or Joyciline Jepkosgei.

They are clear at the front as they head into the final five kilometres.

This might be my favourite quote of the weekend.

"All the people love it. But yeah, animals are a bit confused. So that's been a little bit of a challenge."

Those are the words of Georgie Box, who is running the Marathon dressed in a shark costume.

The 28-year-old, from Stratford-upon-Avon, will be raising money for homelessness charity Shelter and says she wanted to do something "that was challenging but also fun and would bring a smile to people's faces".

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Look at Peres Jepchirchir. She's decided to put a little bit of a tester in. She picked up a drink and didn't drink it. She had a bit of a look and had a go.

There are four women at the front of the elite women's race now.

Olympic champion Peres Jepchirchir tries to steal an advantage at the latest drinks station but Tigst Assefa is wise to the move.

Overall the pace has dropped a little but they are still well inside that women's-only world record held by Mary Keitany.

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1. Catherine Debrunner (Sui) - One hour, 38 minutes and 54 seconds
2. Manuela Schar (Sui) - One hour and 45 minutes
3. Tatyana McFadden (USA) - One hour, 45 minutes and 51 seconds

Boston Marathon winner Eden Rainbow-Cooper was the highest Briton finisher, coming sixth in one hour, 50 minutes and 39 seconds.

Image source, PA Media

Tigst Assefa has made a move as the pace slows. This is a little bit of mind games that we were talking about. It's about who feels good and who's legs feel heavier at this point.

1. Marcel Hug (Sui) - One hour, 28 minutes and 35 seconds
2. Daniel Romanchuk (USA) - One hour, 29 minutes and six seconds
3. David Weir (GB) - One hour, 29 minutes and 58 seconds

One of the highlights of the London Marathon is all of the weird and wonderful costume.

One of those will be worn by Jess Walklin from north London, who will complete the marathon dressed as a giant brain.

He and partner Jessica are raising money for the charity Brain Tumour Research in honour of Mr Walklin's mum Caroline Walklin.

If you're wondering, the brain weighs 5kg (11lb)...

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Tigst Assefa has now gone back to the front after it was slowing and I don't really think she'll want that to happen.

Emile Cairess is drifting off the back of the time needed to break Mo Farah's British record. Has he got more in the second half?

Cairess is well under that Olympic qualification time, however.

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As always with the London Marathon, there's some fantastic costumes being worn.

Image source, PA Media

Image source, PA Media

Image source, PA Media

Everyone we expected to be in the lead group is still there. The gaps will drift though.

Emile Cairess is losing one of his pacemakers half way through in what is a blow for him.

Daniel Clark

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I think the pace is slowing a bit and all of a sudden they're all looking around at each other. This group is full of talent.

We have around an hour now until the next race is decided - the women's elite race.

The pace makers are done. They have dropped off so it's up to these main contenders to battle it out, possibly in a record time.

Former record holder Brigid Kosgei has been left behind by this serious pace. Current world record holder Tigst Assefa still looks comfortable. She is looking around and sharing her water bottle.

To do that on her own from a couple of miles in is deeply impressive.

Image source, Reuters

Catherine Debrunner could freewheel over the line if she wanted.

She wins her second London Marathon in utterly dominant fashion.