Jon Egging, who lived in Rutland and flew as a Red Arrows pilot, died after his plane crashed during the Bournemouth Airshow last August.
His widow, Emma Egging, ran the Great North Run for the Jon Egging Trust, which raises money to help children achieve their dreams.
Emma Egging told ITV News why she decided to take part in the Great North Run.
Ahead of today's Great North Run, the annual half marathon from Newcastle to South Shields, ITV News caught up with ParalympicsGB medallist Ellie Simmonds from Walsall.
Ellie, who won two golds, a silver and a bronze in London, was invited to cheer on those taking part in today's event. She says it has been a great summer.
Four-time ParalympicGB medallist Ellie Simmonds is one of many TeamGB and ParalympicGB stars supporting those taking part in today's Great North Run.