Gerhart took an official visit to Nebraska two weeks ago but has decided he's going to stick with his earlier pledge to the Sun Devils.
"Nebraska was great, it's an amazing place," Gerhard said. "I really liked it there and when I came home, I had a lot to think about and go over with my parents. I took a whole week to think everything over but decided ASU was still the best place for me and I'm shutting down my recruitment from here on.
"ASU is close to home, my family can drive there and I love the coaching staff. I think with Coach Graham and coach Norvell, there's a lot of stability there and that's big for me. I feel very comfortable with the school and the football program moving forward so that's why I decided to stay a Sun Devil."
Another big factor is ASU not giving Gerhard the opportunity to play quarterback as well.
"That's big for me," Gerhart said. "Before I took my official visit to Nebraska, I had an in-home with ASU and they assured me they want me at quarterback. They assured me that's where I'll be for the next four years and I have no doubt they're being honest with me.
"I know they have Manny Wilkins there and that's great. I love competition, it's going to make everyone a better player. I feel really good about ASU and that's why I'm shutting it down. There are still some other schools wanting me to visit but unless something crazy happens like a coaching change, I'm all ASU."