The athletes will complete their challenges tomorrow, with April 26 the original date of the 40th edition of the London Marathon, reportedly the world’s biggest one day annual fundraising event.

Last year's London Marathon raised £66.4million ($83million/€76.3million) for charities in the UK.

To help aid the country's charitable sector, which is set to lose £4billion ($5 billion/€4.6billion) as a result of the coronavirus pandemic, organisers have created a new campaign to raise funds. 

Participants have been asked to think of an activity based around the numbers 2.6 or 26, with British Paralympians revealing their own challenges on social media. 

RIo 2016 Paralympic powerlifting silver medallist Ali Jawad has promised to bench press 26 reps in 26 seconds at his current bodyweight, while Para-table tennis player Jack Hunter-Spivey is to count how many times he can hit a table tennis ball on alternate sides of the bat for 2.6 minutes. 

Two-time Para-triathlon world champion Alison Peasgood will see how quickly she can take on a mini-triathlon of 26 swim strokes, 260 metre cycle and 26m run. 

Wheelchair athlete David Weir has already promised to complete his own marathon as part of the challenge.

The British athlete is one of the country's most successful Paralympians with six golds, two silvers and two bronze medals to his name.

He has competed in every London Marathon since making his debut in 2000, winning the event a record eight times.

So far the British Paralympic Association has raised £360 ($445/€411) for the 2.6 Challenge.

The London Marathon was postponed last month due to the pandemic and is now scheduled to take place on October 4.