Don’t place too much stock in the treadmill console’s numbers. Hopefully, you can trust the clock and grade setting, but the chances that the treadmill is perfectly calibrated are slim to none in most settings. Certainly don’t freak out that you’re in horrible shape if the treadmill console is telling you that what you thought was your normal training pace feels really hard. Conversely, don’t get overly confident about your fitness for outdoor races if your treadmill is telling you you’re doing mile repeats far faster than ever. As much as you can in such an artificial setting, base how fast you go on the treadmill on what feels right for the day, regardless of what pace the console claims that is.