When should I start training for a half marathon?

When should I start training for a half marathon?

It's just very similar to a marathon. If you're starting from scratch then you probably want to get at least three months to four months starting, so you can reach that level up to about ten miles, which is going to be about a month prior to race day, and then hit a couple of weeks where you're going to be doing the exact distance, and that should be sufficient.