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Listen: Graham spoke to Adam Williams as he neared the end of his challenge on Saturday.
Throughout the gruelling challenge, he also played squash, table tennis, basketball, netball and cycle to Whitstable and back.
He wants others to be inspired by his efforts to do something "little" of their own and to pass on the idea to 10 friends.
The challenge came about after Mr Holmes, who lives in Eastling, lost his mother in November last year to pancreatic and liver cancer.
He hopes people will do something different for the day, whether taking the stairs instead of the lift, starting a new hobby or learning to ride a bike.
The 44-year-old, an avid sports fan and badminton endurance world record holder, said: "People don't have to organise large events or individually raise thousands of pounds.
"Simply do something little, think about cancer, pay a pound and ask your friends to do the same. Everyone is touched in one way or another by cancer and therefore this is a way that everyone can help."