I completed the C25K programme three weeks ago and since then I've been running 5.Xkm three times per week.
Today I decided to try to run a little bit longer, just for fun and to see how it felt, and I did my first over 6km (6.48km) run. When I stopped I was still feeling strong; I could have carried on for at least another kilometre but I wanted to avoid doing too much too soon.
Now I am thinking to insert a longer run into my weekly programme and gradually build-up to 10km. Anyway I'd prefer to avoid using one of the many "bridge to 10k" walk/run programme and I was thinking to simply increase my long run distance by 0.5km per week; does it sound sensible to you or you would strongly recommend to follow a "proper" programme?