On a trail run, knowing what time you’ll reach a specific aid station or the top of a climb is crucial for managing your race and reassuring your loved ones. Here’s how to use Segly to estimate your split times.
Why estimate your split times?
- To adjust your pace so you don’t start out too fast
- To keep your family or support crew informed
- Meet time cutoffs during a race
- Plan your fuel stops
The Naismith Method
The classic formula for hiking allows for 1 hour per 5 km on flat terrain, plus an additional hour for every 600 m of elevation gain. For trail running, you can adjust this based on your fitness level and the technical difficulty of the terrain.
Segly makes this calculation easy
By segmenting your GPX track by key points or distance, Segly provides the following for each segment: distance, elevation gain, average gradient, and duration. Simply apply your personal coefficient to get a reliable estimate of your estimated time.
Export to take the data with you
Use Segly’s PDF export feature to get a summary table that you can print or save to your phone. You’ll have all your reference data available, even without an internet connection.
Try it now by importing your track into Segly.
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