Brian first competed in Kansas City in American Ninja Warrior 7. His run was cut in qualifying but he finished the course placing 19th.
His run in the city finals was also cut, but he failed the Flying Shelf Grab. Since the majority of competitors failed the next obstacle, the Body Prop, he didn't make it to the national finals. He placed 17th overall at the end of the night
Brian returned to compete in Oklahoma City in American Ninja Warrior 8 where he finished the qualifying course again, placing 6th.
His run in the city finals was digested, but it was shown that he failed the Log Runner, not making it to Vegas.
A few years later, he was shown supporting his son on American Ninja Warrior Junior. His wife, Holly Beckstrand, had also competed on American Ninja Warrior 10 and 11. He tried to compete on ANW 11 in Tacoma, and was selected as a walk-on, but he was selected too late to even get a chance to run the course.
- There have been two instances on American Ninja Warrior where Brian Beckstrand received the same outcome as two other competitors named "Brian".
- In American Ninja Warrior 8's Oklahoma city finals, he failed the Log Runner, along with Brian Burkhardt and Brian Doom.
- In the Tacoma walk-on line in American Ninja Warrior 11, he, along with Brian Redard and Brian Parache, were selected (although Beckstrand was the only "Brian" to not run the course out of the three).