Troy - when I first started running with mine (a German shorthaired pointer) he would go and be sick near the back door. I was never sure if it was the run he didn't like - he loved his 'walks and games' or the sight of me in my ron hills!!!
Perseverance and me not having the time to do an hours walk with him and then a run after meant he had no option - now he loves it!!
Keep trying - dogs are just like humans - they love everything their own way and although they love a good walk, even my energetic breed is a secret couch potato and loves nothing but curling up in the warm!
Don't like to admit I didn't have a clue what a cane corso is ( don't you just love Google) - that's not a dog it's a beast!!! I really don't think you'll get many runners acknowledging you with that monster on a lead!! You might get a few choice words if its off lead