The Marriott is probably about a mile and half from the stadium actually but still walkable. With that said...it's the nicest place in town for the most part. There are several other options though that might be a little cheaper and not quite as far a walk. The Marriott is on the eastern edge of downtown. UT and the stadium are closer to the western edge. Anyway...just wanted to let you know so you knew the walk would be a little bit of a hike...but not horrible. Again...there are many places even closer.
I used to work for the Marriott and one of my best friends is a manager at one, so I get employee discounts so its really cheap. Ill look into it. Thanks so much. When its closer I may have more questions