Comments: What sports do your grandparents play?
Olga Kotelko is a 95-year-old athletics champion with more than 30 world records to her name.
The Canadian became the oldest recorded female indoor sprinter, high jumper, long jumper and triple jumper at the World Masters Athletics Championships this year.
She took up athletics when she was 77 years old and has won more than 750 gold medals!
My grandma plays golf every day and goes walking on the weekends.
Issie, Wiltshire, England
My grandparents play tennis and football and they are 79!
Nilofar, London, England
My nanny plays tennis a lot to keep fit, she does it three times a week!
Chloe, Leamington Spa, England
My granddad still does triathlons.
Holly, Buckinghamshire, England
My 71 year old grandma loves to play netball with me!
Olivia, Northern Ireland
My nan is 63 and she still cycles and jogs and runs everyday and my grandad is 68 but still frequently goes canoeing and once even took me with him!
Liam, Whittlesey, England
My great grandpa plays soccer and he is only 97!!!
Kimvibol, Phnom Penh, Cambodia
My nana and granddad love going cycling and they are both 71!
Katie, Yorkshire, England
My 73-year-old grandpa plays rugby for Middlesex and plays tennis with friends - he is awesome!
Dan, Leicester, England
My granny goes walking up mountains and hills in different countries like New Zealand, Zimbabwe and Israel.
Ruby, Gloucestershire, England
My granddad does not do any sports but my grandma swims!
Aysha, Lancashire, England
My gran is really fit. She does mountain climbing and she is 72!
Orla, North Ayrshire, Scotland
My whole family does sports even my pet dog Milo.
Joseph, London, England
My grandma is 77 and she loves running all day.
Josh, London, England
My grandpa plays golf at the weekends and he's 86.
Mohamed, London, England