But then I found that there is another solution to download the data. Does a simular solution exist that downloads courses that only exist in the modern environment? When trying the URL with the course-id it results in an empty page with no error-message.

The courses that have been created after a certain time only seem to exist in the modern environment. I discovered that this does only work if the course exists in the modern as well as in the classic environment. so much frustration solved by your excellent solution! Shame on Garmin for such lazy ineffective software! Thank you so much! After hours of trying garmin help, manuals, loading software, different cables. I've created a simple Greasemonkey user script which adds those links to the Garmin Connect page. Hi Al, I'm not sure why that's happening, but it may be a wider Garmin Connect issue: Nice, but I lost all the elevation data in the export? This seems to be a wider issue with Garmin Connect exports.

UPDATE June 2015: The exported data may lose elevation and other details. Swap the numbers for the course you want into the links below to download the file. The part of the URL that you need is the string of numbers at the end, 3220309 in this case. (This particular route is the Clonakilty Waterfront Marathon, but use whichever one you want.) Look at the URL or web address of the Garmin Connect webpage. You can view routes and tracks online at Garmin's connect website, but it is not obvious how you download a copy. Download gpx, tcx, fit, json, or gpolyline from the Garmin Connect Website

Garmin connect export route to gpx