The public ballot entry system for the 2019 Virgin Money London Marathon opens to all applicants today and closes at 17.00 BST on Friday 4 May.
The ballot will be open for five days to give everyone who would like to enter the event a fair chance to do so.
A world record total of 386,050 people applied in the 2018 ballot and and high demand is again anticipated for the 2019 race, which will take place on Sunday 28 April 2019.
All those who enter the ballot will find out whether or not they have been successful in early October.
Find out more about entering the ballot here.