A big well done to Simon Hughes who ran the Prague Marathon this May.
Simon completed the marathon in four hours and 56 minutes and raised over £400 for RNIB. His cousin is Tiri Hughes, who is 12 and registered partially sighted.
Tiri's mum Laura said:
"We are so proud of Simon! He has never done any running before so this was a huge challenge for him. He has always been very sympathetic about Tiri's sight problems and is a great cousin to both her and her little brother Tom."
Watch Tiri's video
Simon's cousin Tiri has been featured in an RNIB video. Watch Tiri's video to find out more about her story.
Take up a challenge
Would you like to raise money for RNIB? There are lots of great physical events and challenges to choose from. If sport isn't your thing, why not take part in our reading challenge, Read for RNIB Day?