casper3043 wrote:
i've seen 183 very briefly...was on the border line of passing out. my guess is that the 191 was a watch issue - no one is pacing at that HR and then living to tell about it.Not true.
It may be unusually high but it's not outside the bounds of possibility.
A friend of mine has averaged in the 180-190bpm range for multiple marathons and half marathons. I did suggest he check it out since I don't think his max HR is high enough to explain that, and his cadence is too low for it to be cadence lock....but his highest averages were several years ago and he's still not dead.
ETA: I'm pretty sure he's averaged in the 190s for 5km and 10km races.