The answer is 39%. Below is a breakdown of the same by decade. It seems that the number of close title games has decreased over the past 10 years. Over the past 40 years, there has always been at least one title game decided by 10 points or less each year.
2015 was arguably one of the worst years ever in terms of competitiveness, with only one of 8 games decided by less than 19 points.
One of the most competitive ever? 1997 was pretty good, with 4/5 games decided by 8 points or less. I liked it when we had 5 or 6 classes. 8 just seems to spread things too thin.
I have heard that Phil Ziglar is a better person than he is a football coach. Since he is a very good high school football coach, one can only imagine how that speaks to the man's character. Timber Creek is always extremely well coached and disciplined, Coach Buckridge always gets the absolute most out of his talent on a yearly basis.
This is just a guess, but is that Tra Thomas from Deland? If this is correct, I don't remember the Bulldogs having a losing record when he played there in the early 90's. Tra Thomas played for Florida State, and then was drafted by the Philadelphia Eagles (My 32nd favorite team in the NFL) in I believe 1995.