Chanston was a contributor as a Freshman on the 1994 State runners-up. By the end of the season, he was starting at Wide Receiver. During his Sophomore season, Chanston became an all-district Cornerback. But with the graduation of Nathan Poole, he became G.W.'s starting QB.

G.W. switched to a "split-bone" style offense in 1996 to accentuate Chanston's abilities and they flourished. The Eagles went 13-1, finishing a touchdown short of a perfect season.

In addition to his running and leadership abilities, Chanston was also a prolific passer. He threw 10 touchdown passes in his senior year, to give G.W. one of it's most potent offenses ever.

But it was his running ability for which Chanston will be most remembered. He was a threat to score from anywhere on the field, any time he had his hands on the ball.