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Sumorunner
March 13th, 2016, 09:22 AM
I have used the gmap-pedometer app for years to measure running routes. It's good, but can be off after several miles if you don't track turns properly. Then I wondered how accurate it would be on a specific short distance. So I tried it on a town pool (Colonie NY) which states it is Olympic Size. I have always logged laps there in meters, but you never really know when they say that, whether it's yards or meters. Here's a link to the map which showed me exactly 50 meters.

http://www.gmap-pedometer.com/?r=6818663

Bob.Singer
March 13th, 2016, 11:57 AM
I have used the gmap-pedometer app for years to measure running routes. It's good, but can be off after several miles if you don't track turns properly. Then I wondered how accurate it would be on a specific short distance. So I tried it on a town pool (Colonie NY) which states it is Olympic Size. I have always logged laps there in meters, but you never really know when they say that, whether it's yards or meters. Here's a link to the map which showed me exactly 50 meters.

http://www.gmap-pedometer.com/?r=6818663

For competition, the pool must be measured with a surveyors tape or transit. Many facilities say they have Olympic size pools. I've seen 20 yard hotel pools advertised as Olympic sized. The pool in Colonie looks like 50 m.

orca1946
March 13th, 2016, 03:31 PM
To be official a metal tape must be used.

BobBruce
March 13th, 2016, 04:06 PM
USMS pool measurement details can be found at http://www.usms.org/admin/lmschb/gto_rectab_pool_measurement.pdf.

sunruh
March 13th, 2016, 04:35 PM
um no

a laser can be used

smontanaro
March 13th, 2016, 07:54 PM
This method might still be useful when you wind up swimming at an unfamiliar pool. I just paced off the hotel pool in Puerto Vallarta, estimating it to be twenty meters. I might have made a better estimate with a pedometer app on my phone.

orca1946
March 14th, 2016, 12:34 PM
Did not know they allow lasers .