@matigo likely never. I can't even imagine going that far. I'm not even sure I'll go much farther than 10k. Of course, it all depends on how often I do this. If my body needs more to feel "good workout" then I'll clearly have to do more. That's really what is guiding this. The standard "run home" route of 6.5k wasn't long enough to get that "good workout" feeling.