Harrison, 9, is completing a run every month in 2026 to raise money for the air ambulance.
Weymouth parkrun was temporarily cancelled in August following a surge in attendance numbers.
A woman undergoing cancer treatment will attend a Parkrun to encourage more stem cell donors.
The Olympic champion says she runs or volunteers most weeks as she enjoys the health benefits.
The couple celebrate their day with their running club friends who they say are like 'family'.
The 74-year-old said he was "incredibly lucky" that PC Vicky Howick was running behind him.
A growing collective of running enthusiasts is globetrotting in search of 5k runs, many off the beaten track.
More than 1,200 runners and walkers descend on a park as fitness coach Joe Wicks tours Parkruns.
A parkrun in Northumberland is cancelled for the fourth week in a row because toads are on the track.
