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2. If there exists no data for the stroke rate/split we grayed out the "Plot" button and replaced the numbers with "-" or ":-" respectively. Users found this to be very intuitive and never confused that feedback with lost data (usually it meant their accelerometer or GPS are turned off).
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"View Map" Pressed from previous (View Past Race) Screen -> View Map Screen
1. Our view map screen shows a green pin where the race started, a red pin where the race ended, and intermediate icons indicating points along the path. Users found this feature very enjoyable and intuitive, since it looks very similar to Google Maps (and allows all the same gestures).
"Playback" Pressed -> Playback Screen
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