noun
recreational runner; fun runner; casual runner
A person who runs for enjoyment or health rather than competition. Loanword from English 'fun runner'.
from English fun runner
週末はファンランナーとして公園を走っています。
On weekends I run in the park as a recreational runner.
この大会はファンランナー向けの5キロコースがあります。
This event has a 5-kilometer course for casual runners.