Select a previously completed running effort/race from the list, specify your time and press calculate. Predictions of finishing times for a range of other distances/trails will be calculated based on your input. The predictions can be improved by adding a second running effort. Press the toggle button and input fields for a second race will appear. If you change distance/trail in any of the two lists, the predictions will be updated automatically. If you change your running time, you need to press the calculate button to update the predictions.
