1000 calorie bro here. I only do 30 minutes of treadmill and the other thirty in the weight floor. average 4 or so miles a day. Yeah the key is the incline but not too high usually just at 3 sometimes 4 degrees.
The 1,000 calorie bro could be real, but that is some serious running
I would put an hour on treadmill closer to 500-600
Now outdoor hilly serious 1 hr run? Yeah I buy 1,000 then maybe