Re: Race Report Miami Half Marathon

[apologies if you are seeing this double; I had some trouble posting this]

Charlie Pendejo wrote:
> Ylan Segal wrote:
>>Av. Pace: 8:10
>
>
> And with beautiful splits. Nicely done!

Thank you!

>>My polar thinks I only ran 12.53 miles
>
>
> Wow, I'm vaguely surprised to hear of one of those gizmos being that
> far - more than 4% - off. Is that par for the course from this polar?
> Is it consistent? What tech does it use for mileage calc?
>

The polar people sell it as an advanced accelerometer sensor, not a
pedometer. I don't have access to a track near home, so I never
calibrated it like the manual suggests. The first few times I used it, I
mapped my run with google earth and checked against what the polar
said: The distances were pretty close (like to within 0.5%) so I called
it good and didn't bother with anything else.

As far as consistency goes: It was very consistent. All real miles were
measured at 0.95 or 0.94 "polar miles". I expect that once I put this
newly calculated calibration factor it will be very accurate, or at
least accurate enough for my needs.

--
Ylan

"The universe is not required to be in
perfect harmony with human ambition"
~ Carl Sagan

.