Today, I did 4.3K on my Bridge to 60 minutes/10K.
It wasn't "toxic" it was just slow! Probably my slowest 30 minute split.
When I finished I felt as if hadn't done much. I clearly ran within myself, but just couldn't go very fast.
Just to let everyone know, some runs are just worse than others. I can think of several reasons that may have had an effect, but it was just one of those runs. My 50 minute on Friday was faster than I thought. Today was definitely as slow as I thought!
It could say it was my worst run - but that would have been the one where I stayed on the couch - and that one is still yet to happen!