Originally Posted by
bmontgomery87
strava drops the ball w/ gps connections from time to time or something.
I went out and did some sprints one day and strava said I hit 38 mph. While I'm thinking it was much closer to 28, and it appeared that way on the graph I looked at as well.
+1
... I don't think it' the algorithm, it's erratic GPS input. That problem may be due to the phone or it might be due to Strava's interface with the phone... Interestingly, the IPhone 5S that was introduced last September added a second processor to aid apps like Strava. i have no idea if it would fix (or even affect) this problem, but it seems likely to me...
While it's true that the algorithm is an estimate of power, that does not mean it's estimate should be erratic -- and the same with it's erratic speed readings. Actually, I would suspect that both of those problems related back to a problem with the GPS or its interpretation by Strava.