From a user point of view, I would suggest having the user select the "type" of workout at the beginning, before you hit "start". This is how it works with exercise apps, like Strava etc, where there is a drop-down box of supported activity types (eg nordic skiing, snowshoeing, hiking, ebiking etc.)
What happens after that is up to the hosts and programmers. Results are tabulated separately by sport and additional analysis is available for a fee (this is their business model)
The analogy breaks down at some point because common exercise apps are mainly concerned with performance factors like time, distance, heartrate, calories etc. Navigation, if it is addressed at all is only in the context of Helping you follow the course successfully, rather than testing your ability to do it.
So, I would try to learn from the way other exercise apps approach tracking, while adapting it to the particulars of Orienteering. Hope this helps. I don't actually do Orienteering - everything but! So I apologize if this is all a total red herring.
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NAML