London Marathon in numbers - as 40,000 runners face the hottest race ever
The 38th annual London Marathon is expected to be the hottest ever recorded.
Extra safety measures have been added, including more ice, water and run-through shower stations on the 26.2-mile course.
Race officials have advised runners to adjust their goal time and rethink possible fancy dress costumes due to the weather.
Around 40,000 runners will be pounding the pavement as temperatures threaten to reach sweltering highs of 23C.
A record 386,050 people applied for this year’s race – almost a third more than last year and the highest number for any marathon in the world.
Races start from 8.55am.
Here are some facts and figures about this year’s Virgin Money London Marathon:
7 – Victories by Great Britain’s David Weir in the men’s wheelchair marathon, the most ever
7.6 – Degrees Celsius of the coolest marathon ever, in 1994
10 – Victories by Kenyan female runners, making it the most successful country in the women’s elite race
11 – Men to have run every London Marathon
13 – Victories by Kenyan male runners, making it the most successful country in the men’s elite race
23 – Degrees Celsius of Sunday’s predicted highest temperature, which would make 2018 the hottest-ever race
39 – First aid stations dotted along the course
45 – Percentage of applicants who were female, a record
83 – Age of oldest woman running 2018 event
87 – Age of oldest man running 2018 event
90 – Age of oldest female finisher ever
93 – Age of oldest male finisher ever
98 – Number of people attempting Guinness World Records
196 – Countries where the race will be broadcast
£39,273 – Prize money for winners of the men’s and women’s elite races
39,487 – Most finishers, in 2017
650,000 – Recyclable plastic bottles provided
750,000 – Expected spectators lining capital’s streets
£2.3 million – Highest amount ever raised by a single runner, in 2011
£890 million – Amount raised by runners for charity since the first London marathon in 1981