I've done it myself, even when out of shape. The heavier you are the slower you need to go to burn that much. If you weigh 100 kilos and run a 10k in an hour, that's over 1,000 kcal. Lighter people burn less per km but we can run faster, too. HIT burns less but can give a nice metabolic boost.

Check runners world or a calculator of your choice.

https://www.runnersworld.com/tools/calories-burned-calculato...