Penkridge's Marathon Mark is running into the record books

And Mark Vaz is already a record breaker as he continues on his mission to complete 90 marathons in 90 days.

He was inspired after his wife Tammy suffered seven miscarriages - and wants to raise £90,000 for charity.

The 31-year-old, from Penkridge, has broken the world record of 21 'ultra' marathons - which must be over 26.2 miles - on consecutive days.

And he says the challenge is actually getting easier each day as his body is getting used to the huge strain it is being put under.

But he is struggling to eat enough to compensate for the 3,000 calories he is burning off with each run, and has already lost one and a half stone.

He is managing to balance the 2,340-mile adventure alongside his day job as a window cleaner, and often does the runs either before or after a shift.

All times and routes have to be recorded exactly, though, to be eligible for the world record.

And he is not making life easy for himself by travelling across the country to a new location for each marathon.

The highlight so far has been a visit to Land's End in Cornwall, though it was also the toughest so far, with steep hills and rocky terrain.

Other runs have been completed in London, Essex, Shrewsbury and Newcastle. And he plans to climb Snowdon later this month, but has been suffering some pain in his hamstring this week so wants to stick to flatter courses for the time being.

He said: "I'm getting stronger every day. The first one was hard and I'm not saying it's easy now but my body is more comfortable with it.

"Land's End was so difficult but it was worth it and I am really enjoying it."

Mark had already started planning his challenge when Tammy suffered a seventh miscarriage in May - but it made him even more determined to complete it.

However he admits his joy at breaking the ultra marathon world record was dampened by some of the criticism he has been receiving on social media.

"Some people have claimed an ultra marathon should be at least 35 miles, and others are criticising my choice of charities," he said.

"They're even having a go at me for doing this and saying I'm doing it for attention and that running this far each day isn't a big deal. Some people are just so rude on social media - what harm am I doing anyone?"

He is refusing to let the comments get him down, though, and says he is 'more focussed than ever'.

His times have been around four hours so far and he wants to improve further.

And so far he has raised £3,000, so needs plenty of help to reach the £90,000 target, which will be shared between Tommy's charity and Katharine House Hospice in Stafford.

And if that is not enough, he has thrown down the gauntlet to his sponsors, saying that he will also run from his home to London in three days at the end of his challenge in October if he manages to raise at least £30,000 for his chosen charities.

To sponsor Mark visit the website www.virginmoneygiving.com/team/9090