Watch London Marathon Live Stream (click Here)
"It's been a seriously difficult two years since that night at London Bridge but this is my opportunity to raise money for a charity that's helped me and many others that I hold close."
"Before my diagnosis I was working hard, making my way through life as a 20-year-old woman. You then get thrown into hospital appointments, multiple procedures, surgery, chemotherapy, radiotherapy. My life changed dramatically.
What road closures are in place for the London Marathon?
There will be 26 road closures across London during the course of the marathon.
The course starts in Greenwich Park and continues throughout London.
As always, it will finish on The Mall.
Virgin has created an interactive map of the closures.
Closures started as early as 6am in some places and will be in place until as early 12pm but in some places as late as 7pm.
Between the closure hours, any busses that would have intervened in the route will be put on diversion - for up to date bus alerts check TfL Bus alerts.