Coach Workouts and Garmin Training plans saving to watch as 'workouts'

So today I created a workout on the phone app and tried to synch/add to watch but it said on the watch "you have reached maximum workouts, not all workouts synced". This left me puzzled as I have only 4 created workouts. I go to watch start a run go to workouts and I see every single garmin coach and marathon training workout (I have either done or skipped from the app calendar) saved to the watch lol. I have manually deleted all these and added my workouts. Is there a way to prevent all the garmin coach and training plans saving in the workout menu on the watch?