Pictured: Runners gather in Greenwich ahead of the race
Many runners have already arrived at Greenwich Park and Blackheath Common, where they are preparing themselves for the tough 26.2 miles that lies ahead.
WATCH: Security checks put in place before the event
Organisers have put up barriers along the route, including on The Mall where the runners will (hopefully) power through to the finish line.
You can watch some of the preparations, which included the deployment of police sniffer dogs, below:
What is the London Marathon route?
The London Marathon starts at Blackheath Common, with many runners gathering in Greenwich Park before their wave sets off.
The 26.2-mile route sees participents go past some of the capital's most iconic sights before finishing on The Mall with Buckingham Palace looming large in the background.
On the way to the finish line runners will power past the following landmarks:
- Mile 6 - Cutty Sark
- Mile 12 - Tower Bridge
- Mile 18 - Canary Wharf
- Mile 22 - Tower of London
- Mile 25 - The London Eye
- Mile 25 - Big Ben and the Houses of Parliament
- Mile 26 - Buckingham Palace
When does the London Marathon start?
It has been an early start for almost everyone taking part in today's London Marathon, with people descending on Greenwich Park to be prepared for the starting gun.
Given the sheer number of people taking part the start times have been staggered. Here is the order they will set off:
- 9.05am - Elite wheelchair race gets underway
- 9.25am - Elite women's race kicks off
- 10am - Elite men's race gets started
- 10am to 11.30am - Amateur runners set off in waves
Welcome to MailOnline's coverage of the 2024 London Marathon
Good morning and welcome to MailOnline's coverage of the 2024 London Marathon.
More than 50,000 professional and amateur runners are set to power through the streets of the capital today, with many raising thousands of pounds for charity in the process.
Stay stuned to our live blog, where we will be sharing the best of the day's action, the inspiring stories of those taking part and how the famous faces in the field are getting on in their quest to reach the finish line.