Merge Multiple FIT/GPX Records Into One Complete Activity
Common Merge Scenarios
- Multi-day ultra rides: Multi-day cycling or trekking adventures combined into a single epic journey — the most common use case.
- Accidental stop mid-ride: You accidentally pressed stop on your bike computer or watch — merge the two segments back into one complete activity.
- Swim split into segments: Watch auto-split different strokes into separate records — merge back into one swim session.
GarSync's merge engine is battle-tested: over 2,000 km of ultra-distance cycling data has been successfully merged into a single activity. After merging, metrics like total distance, average pace/speed, and elevation gain are automatically recalculated.
How to Use
- In GarSync, go to the Discover page and find the Merge Track feature.
- Check the activities you want to merge — once you select the first one, the list auto-filters to show activities of the same sport type.
- Confirm your selection — GarSync auto-joins GPS tracks, aligns timelines, and combines sensor data.
- A new activity with the suffix (merged) appended to its title is auto-saved to your phone's local data source — original activities remain untouched, so you can always revert.
- Optionally, sync the merged activity to Strava, Garmin, or other platforms with one tap.
FAQ
Q: What's the data quality after merging?
A: The merge engine stitches GPS tracks and sensor data second by second. If there's a time gap between segments, GarSync leaves it blank rather than forcing interpolation — data authenticity is preserved. Merged pace, distance, and summary metrics are recalculated from actual data.
Q: Can I merge different sport types?
A: No. Merge Track only supports merging activities of the same sport type — the list auto-filters accordingly.
Q: Will I lose the original activities?
A: No. The merge creates a new activity on your phone's local data source. Original activities remain fully intact — you can delete the merged result and re-merge anytime.