For many people, one marathon is enough, but Harmander Singh is running his 30th consecutive London Marathon.

Harmander, 54, runs with Ilford group Sikhs in the City and trained the world’s oldest marathon runner, Fauja Singh, the 101, for the 2012 race.

This year he has worked with Louise Simpson, who was born blind and is raising money for visually-impaired children’s charity VICTA.

She competed in the London 2012 Paralympics, reaching the goalball quarter finals, and has set herself a new challenge.

Harmander will be her guide runner around the course.

Despite it being his 81st marathon overall, he is still excited.

Harmander said: “I just enjoy running – I love it.

“I can remember every single road we will be going down along the course.

“London is the best marathon in the world, and I’ve run in 18 other countries.

“It’s not just because I love London, even in dodgy weather it’s always got the best support with the crowds.”

He is helping Louise raise money for VICTA. Sponsor them at uk.virginmoneygiving.com/louisesimpson6.