I did my first 10k race back in June, on the advice from the wise on here, I took it slow and steady. After the race I wondered about doing a half marathon in early October and started training for that, but a few things got in the way. But I have still been running and attending a running club to do interval training, frequently these happen on the same day so I run twice a day but always take a rest day after, I know I NEED my day off otherwise I'm wrecked.
Yesterday, I managed to get a 10.3k run done in the morning, I was fairly pleased, it wasn't at all speedy. I took it easy. Then in the evening a running buddy messaged me about going for a run. I decided to do it as I was at a bit of a loose end. Again it was an easy paced run.
Basically yesterday much to my amazement I covered 17.5k. I'm not in pain, but I do have a blister... 😳
I know the formula not to increase your running distance more than 10% each week is there for a reason. I just don't think I'd thought about the distance involved in my interval sessions, and added those to my 'distance' I'd done earlier in the day.
Bottom line is I think I'll be able this half marathon. I hope so anyway.