Garmin Daily Suggested Workouts training for an 50km ultrarun

I've used them in the leadup to a 50km ultra and found them to be ok, but not great. A dedicated training plan created by a specialist, specifically for a given race had me running "missions" every 4 weeks that gradually increased from 2 hours to 6 hours - something Garmin's algo would never recommend, but it's also something that far better prepared me for the actual race.

From my experience, the recommended workouts are great for 5k, 10k, half marathon and marathon road courses, but they're not the most ideal for ultras given that the terrain varies wildly between courses. Some ultras will have you mostly training for stairs whilst some are pretty much dead flat. Both require different training plans.

That is very useful information and something I already suspected. It is good to have it confirmed before I start my actual training .

I will use the app Runmotion instead which do seem to be more catered for Ultra events. 

Thanks again for your info!

Enjoy the training and good luck in the race!