This whole winter has been brutally cold. But tonight, even though it was 'only' -23C with a wind chill of -35C, it felt uncomfortably cold. Part of it was my layering was different from what I normally run in, this time wearing a H/H baselayer, then my merino wool top with NorthFace wind stopper jacket. I kept the pace slow in the beginning then gradually ramped it up, really going for it on the last 2km. Other than the bitter cold, the run was good.