Forgive me for starting by stating the obvious, but every runner has them.
Sometimes, I think it’s best to just leave the objective measures behind and follow my heart on a run. Sure, there are days when it’s obvious from the outset that the best I can aim for is a personal worst. I simply accept that my splits shall be horrendous, my pace will be so laughable that it might just have entertainment value and my legs feel like bloated slugs at 5 km and my feet will have turned into dumbbells by the time I finish.
But it always helps me immensely to remind myself that as long as it’s tough, whatever the reason, the workout will ultimately only serve to make me stronger. And that, after all, is one of the reasons why I train in the first place.
Besides, any day on which I run is better than a day on which I don’t run.