Entries have opened for the second annual Plusnet Yorkshire Marathon.
The 6,000 places in 2013's inagural event sold out in just three days.
This year's even takes place on Sunday 12th October, starting and finishing at the University of York.
Ean Parsons ran the Boston Marathon two weeks ago and says running the Marathon of the North provides him with some closure after seeing the awful scenes after the bomb blasts.
Jake Harrison from Leicester won the Marathon of the North - even though it was his first ever marathon!
More than 3500 thousand runners have already signed up for the first Yorkshire Marathon just 36 hours after it was launched.
Organiser Mike Tomlinson says he's never known one of the Jane Tomlinson For All events take off in this way and that the sign-up has already exceeded expectations. Runners from Australia, New Zealand and the Caribbean have already bagged a place.
It takes place in York in October and is the biggest event in memory of Mike's wife Jane since she lost her battle with cancer in 2007.
The widower of late charity fundraiser Jane Tomlinson CBE has said that a marathon dedicated to her legacy is a dream come true.
Plusnet Yorkshire Marathon, which has attracted more than 500 entries within two hours of its launch, may well be the biggest event of its kind in northern England.
The run, in York on October 20, is organised by Jane Tomlinson's For All Events.
For All Events was set up by the Tomlinson family as a legacy to the late fundraiser and campaigner who raised almost £2 million for charity by tackling a series of incredible challenges despite having terminal cancer.
Mr Tomlinson said that despite his wife's original fundraising target being just £5000 10 years ago, £4.5 million has now been raised for charity, adding: "This is just a dream."
Celebrities including cricket legend Dickie Bird, TV football pundit Chris Kamara and double Paralympic champion Hannah Cockroft have given their support to the Yorkshire marathon
A promotional video has been released to encourage as many people as possible to sign up to the new Yorkshire Marathon which is being held in memory of the late charity fundraiser, Jane Tomlinson CBE