Think they are aerobically fit but can't run a 5km in less than 20 minutes and can't run a 10km at all.
Is this a typo / did you mean 30 minutes? 5k in 20 minutes is already maybe top 2% of people who compete in races. And running a 10k is far, far easier than running a 5k sub 20.
Is this a typo / did you mean 30 minutes? 5k in 20 minutes is already maybe top 2% of people who compete in races. And running a 10k is far, far easier than running a 5k sub 20.