Running five marathons in your lifetime would be quite enough for most people.

One Old Catton woman is looking to not just take on her sixth however, but attempt a challenge of more than double the length of a marathon.

Rachael Claxton, 30, has previously completed the London Marathon in 2008, 2009, 2010 and 2011, along with the night-time marathon walking event Shine, also in 2011.

Now she is looking to take on a new course, the London to Brighton Challenge.

The 100km course, or 62.13 miles, is being run, walked and hobbled by about 1,250 people this coming Saturday and Sunday.

Rachael will be walking this time though, for the Asthma UK charity, as she explained: 'I am a little crazy, I know, but after five marathons, not only did I fancy seeing some different scenery, I also felt it would be good to do something for the charity that is closer to my own heart, or lungs to be more precise!

'After all of my marathon running, I am now a sufferer myself and am raising money for the very deserving Asthma UK charity.

'Although I am no longer able to run long distances due to my asthma, my aim is to walk the distance alongside 1,250 others.'

Rachael is hoping to raise �375 for her target and is already over �260 towards doing so.

Last year she raised over �1,000 for The Prostate Cancer Charity by running the London Marathon with her mother, Melanie.

This year Rachael had toyed with another fundraising idea first though, saying: 'I enjoy doing something each year for charity, it began as a child participating in the 24-hour famine.

'I toyed with the idea of a sponsored silence, but felt that was simply too hard a challenge, and for those that know me well would agree!'

It was the London to Brighton Challenge Rachael settled on however, so early on Saturday morning she will be starting in Richmond, on the banks of the Thames.

She will be travelling along footpaths, bridleways, and national trails traversing the North and South Downs through the night, before arriving in Brighton.

The route is fully stewarded with support, with replenishment checkpoints every 12km and hot meal stations at 50km and 75km, before a hard-earned brunch at the finish line in Brighton..

To donate to Rachael's cause, go to www.justgiving.com/rachierach

- Are you raising funds for charity? Contact Local Life editor David Freezer on 01603 772418 or alternatively email david.freezer@archant.co.uk