Strava
Website only. Files can't go up through the Strava app.
- Sign in at strava.com and click the + near the top right corner.
- Pick Upload Activity, then File, and choose the merged file.
- Retype the title and description: they went away with the parts you deleted.
Strava accepts a file of 25 MB or less. When we saw a "duplicate" message, an activity at the same time was still on the account (the same ride, uploaded earlier); the Strava guide covers it. Straight to the form: Strava's upload page.
Garmin Connect
The Connect website, on a computer, which is how Garmin describes a manual import.
- Sign in at connect.garmin.com.
- Click the cloud with the up arrow, top right, and choose Import Data.
- Press Browse, select the merged file, then Import.
Send FIT: a GPX we tried came in as Other whatever its sport, while the FIT kept it. Garmin Connect's importer caps a FIT at 50 MB and a GPX or TCX at 25 MB. It also refused our second import of one activity as already uploaded. The Garmin Connect guide walks through deleting first. Straight to the form: Connect's import page.
intervals.icu
The intervals.icu website, signed in.
- Sign in and find the site's Upload button. The forum's guide shows it on the Activities page; recent forum replies mention it on the calendar.
- Drag the merged file into the box that opens, or click it to pick the file from a folder.
A .zip or .gz around the file is fine too. The forum guide walks through that page as it looked in 2022. Open your intervals.icu activities.
TrainingPeaks
TrainingPeaks in a browser, on your calendar.
- Sign in at app.trainingpeaks.com and open the calendar.
- Drag the merged file from your computer onto the calendar. It settles on the day it was recorded and pairs with a planned workout of that sport, if one is waiting there.
- To tie it to one particular planned workout, open that workout, click Upload at its top right, then Browse.
Only finished workouts can be uploaded, which a merged recording is. TrainingPeaks explains both ways in its help article. Open TrainingPeaks.
Komoot
Website or app, one file per import.
- Open your profile and go to Completed activities.
- Choose Import a GPS file and pick the merged file.
- Select Import as Activity, check the sport, start date and visibility, then import and name it.
KML and NMEA files are not accepted. Importing it as a saved route instead would make it a plan to navigate later, not something you did. Go to Komoot's import.
Ride with GPS
The Ride with GPS website. The app has an import of its own.
- Sign in at ridewithgps.com and click Upload in the toolbar on the left of the home screen.
- Click Browse Files and select the merged file.
- Choose Add to My Activities, not Save as a Route.
Ride with GPS skips a file whose time stamps match something already in your library, and it turns away any file without time data. Go to Ride with GPS's upload page.
Questions
Will the platform keep my elevation and my device?
Strava uses the elevation your device measured when the file names a device it knows to have a barometric altimeter; otherwise it may put in its own corrected figures. Which case a merged file falls into depends on the format you saved, as the Strava guide's section on what carries over explains.
I deleted the wrong activity. Can I get it back?
On Strava, for 30 days: the website's My Activities page, under the Training menu, has a Recently Deleted list. Kudos and comments stay lost even then (more in the Strava guide).
Can I upload from my phone?
For Strava, use the phone's browser rather than the app and open strava.com/upload/select, as the phone part of the Strava guide describes. Komoot imports in its app as well as on the website, and Ride with GPS has an app import too. Garmin describes its import on a computer.
The platform says the activity is already there. What now?
On Strava, in our test, it meant an activity covering the same time was already on the account: we had uploaded that ride before. Remove whatever sits at that time, then try the merged file once more; the Strava guide's questions go through it.
Nothing merged yet?
Fetch each part with the export guide, then drop them all on the home page. The download comes back to your device, ready for the platform you picked above.
Merge the files