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Garmin Connect is reading activity distances incorrectly - Why?

Former Member over 8 years ago

I've noticed (at least a month) Garmin Connect is reading, and hence storing the distance of some of my running activities incorrectly. This is obviously subsequently messing up the other metrics related to the run such as average pace. I'm quite confused as to why this is happening - given that if I copy the FIT file directly from my watch and upload it manually to another well known sites - they always read the distance correctly and the watch itself, if I look in the history, it displays the correct distance. This therefore narrows it down to a problem with Garmin Connect as there is nothing wrong with the FIT file, but the Garmin Connect code that is reading it is wrong.

Details:
Forerunner 630 (software version 7.10.0.0 although I have noticed problems prior to this version)
I upload by synchronising the 630 with my Cell Phone (via bluetooth), and Garmin Connect's Mobile Application.

Examples:

(1)
Actual - Distance: 6.01 miles, Time: 49:44, Pace: 8:17 /mi
Garmin Connect - Distance: 6.10 miles, Time: 49:44, Pace: 8:09 /mi

(2)
Actual - Distance: 3.09 miles, Time: 21:59, Pace: 7:07 /mi
Garmin Connect - Distance: 3.90 miles, Time 21:59, Pace: 5:38 /mi

(3) another approximate 5K distance: (3.07 miles) - Garmin Connect turns it into 3.70 miles

It seems like Garmin Connect applying a shift operation (shift left) after the decimal place on these runs. So for 3.XY miles turns into 3.Y0 miles. Other runs it doesn't do this and records them correctly, for example, a 1.01 mile run stays at 1.01 miles and doesn't change into 1.10 miles.

Could this please be looked into?

Many thanks.

0 nonflaca over 8 years ago

map and total mileage not the same

I just had a similar issue. My watch buzzed 6 miles, i saw it say six miles. I stopped tracking and saved the data. Then when i looked at it in my history it showed as 5.88 miles. However the activity map shows the 6 miles marker and the stop run marker is beyond that.

0 Dr Phil over 8 years ago

Pays to search the forum or at least scan the thread titles as this has been reported in several threads already.

Note also, this is not the place to expect anything from GARMIN. Contact GARMIN support through the usual channels directly to log a fault and request solutions.

0 Former Member over 8 years ago

I did scan many titles over multiple forums. After a deeper trawl I have found other threads.

I don't expect anything. It is more of a hope. Garmin developers presumably read the forums. The GC help section only lists the Forum as a resource, I see no locations to submit or log faults directly with them.