Robert, 28, from Tipton, is using lockdown and furlough to get fit to take part in the Great North Run in September this year.
He is aiming to raise £1,000 for the Stroke Association and can be spotted four or five times each week training around the Tipton and Dudley area.
Robert said: "I have completed the Great North Run half marathon in 2019 in two hours and 43 minutes and hope to run it this year in just two hours.
"I lost my great aunt Pat Rudge, from Birmingham, a few months ago and my grandmother Joyce Mallin, from West Bromwich, suffered a stroke about three years ago but is now fully recovered.
"I have completed more than 140 miles so far and am distinctive in my bright blue and red running jacket and shorts.
"I usually run four to five times each week and have massively changed my diet and am now cooking good, hearty and healthy meals and my weight has dropped from about 14 stones to 12 stones 10lbs.
"I usually run between 5am and 6am and 5pm and 6pm and have set myself a target of raising £500 for the charity, but would love to hit the £1,000 mark."
Robert is also planning to raise further funds by growing his thick ginger hair which he plans to have cut for charity in January next year.
He has set up an online page and hopes people will help boost the amount he hopes to raise.
To donate visit justgiving.com/fundraising/rob-2020