It's pretty difficult to improve on perfection, so Arvada West senior wrestler Kyle Sand earns this year's designation as best high school jock. All the shaggy-headed Sand did is finish his wrestling career without once losing a match: 125-0, with four state titles, the last one at 189 pounds. Anyone who knows anything about wrestling -- where a momentary lapse in concentration or effort can land you on your back -- will attest to what an astonishing feat Sand has accomplished. In fact, when Sand bested his final opponent at the state championships last month, he became the first Colorado schoolboy ever -- and the 35th in the country -- to finish undefeated with four titles.