Transcribing, with a bit of practice first to warm me up (my first ~10 or so trials will be as many as 20 WPM or so below average), for a completely error free end product (even if with corrections needing to be made), I probably average around 80 WPM +/- 25 depending on the difficulty of the text. I rarely break the 100 WPM barrier, but have done so several times. I also rarely will fall below 70 pretty much, but if there is a particularly heavily punctuated piece of text that makes use of a lot of numbers and things like this I will sometimes fall to as low as 55 WPM or so. If I were to take fifty tests in a row (after doing ten or so just for practice and to get my fingers properly positioned and all) my average would likely be 80 WPM, with my lowest being 55 WPM and my highest being 105 WPM or so.
Freestyle typing (writing my unedited stream of consciousness rather than copying reference text) I am probably +25 WPM above transcribing, so my average freestyle typing is likely 105 WPM, with my high being probably 130 WPM and my low being probably 80 WPM.
So,
Transcribing as on typeracer: Approaching an 80 WPM average over time, with most trials falling somewhere in the mid 70s to mid 90s range, with rare lows in the 50s and somewhat more commonly 60s, and with rare highs in the higher 90s and every now and then getting into the lower 100s (probably like once out of fifty trials breaking 100 WPM, and typically being able to do the captcha confirmation test thereafter).
Freestyle typing as I am currently doing: Approaching a 105 WPM average over time, with lows in the 80s and highs in the 130s.