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London Marathon error

My garmin 245 said I ran nearly 2 km further than the actual length of the London Marathon on Sunday. Is this a fault in my watch?

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Carmen_F over 3 years ago +1

My FR245 did the same with my half marathon. 21.49km instead of 21.1km. Because of that it even showed me a new personal best for HM... The buildings, trees, bridges and tunnels affected the GPS signal…

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0 Carmen_F over 3 years ago

My FR245 did the same with my half marathon. 21.49km instead of 21.1km. Because of that it even showed me a new personal best for HM... The buildings, trees, bridges and tunnels affected the GPS signal.