Gemma Stephenson, 34, organised the event, held on Friday which was attended by her friends Maaike Van Der Heijden and Lucy Bunger, with their children Molly Stephenson, three, Aryun Naidu, and Jasmine Bunger.
The Maidenhead homeowner, who is a volunteer fundraiser and ambassador for Pre and Post Natal Depression Advice and Support (PANDAS), suffered from the condition after the birth of her daughter.
She said: "It was a really nice day and enjoyable for everyone, including the children.
"The weather held out for us and we had a nice picnic once we had finished the pramathon."
The event started in Windsor Great Park, taking in The Long Walk up to the Copper Horse statue and back again.
All proceeds from the pramathon will go towards PANDAS.
Visit here to make a donation.
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