The London Marathon first took place on March 29 1981 and has been held in the spring of every year since. She didn't want to tell us until we got home. He says he sometimes gets "very lazy".
"I am an ex-pro cricketer and I'm a personal trainer at Crow Wood so fitness is a major part of my life but I have never done anything as challenging as running a marathon".
"It's an honour to be running the 2017 London Marathon on their behalf as part of team Heads Together".
He'll be the one wearing tracksuit bottoms, a pair of old running shoes and a wide grin. Kate, who will be cheering on runnersfrom the sidelines on race day, spoke to the athletes about the different reasons they are competing in the 26-mile run. He'll be the one who still expects to be passing many runners in their 20s and 30s in the closing stages.
Jones is the oldest runner in this year's race, at 83 years and 339 days.
So what is the secret to Jones' longevity and enthusiasm?
The Prince, who was just 12 when Diana, Princess of Wales, was killed in a vehicle crash in Paris on August 31, 1997 said of his mother: "I think from her perspective she would be overwhelmed and hugely encouraged by the fact that the United Kingdom - not known for wanting to talk about mental health issues - has suddenly got to this point".
"If the weather is fine for us, and we cooperate, I think we will run a great time", Keitany said.
That passion exists to this day.
"I really hope to be able to do the course in three hours and 15 minutes".
"It's very bad and it falls very hard on me to know that the Olympic marathon champion may have doped", she said. From Canary Wharf, the route heads west taking runners through the City of London and along the Victoria Embankment, towards Westminster and the finish line - past Buckingham Palace - at The Mall.
"I have a charity page set up in my name on Go-fund Me".
In the marathon, running 2.10 and winning would not give you full happiness. Members of the Royal Family have been heavily involved with London for months working with Heads Together, a program that aims to help people "feel much more comfortable with their everyday mental well-being and have the practical tools to support their friends and family". "That would be some achievement".