Johnny ends up featured in grudge matches against Miller , where they take turns one - upping one another .
He clashes with Mack Miller ( Glen Corbett ) , a cocky champion , and falls for Mary Reeves ( Beverly Tyler ) , another top skater .
Johnny ends up featured in grudge matches against champion , where they take turns one - upping one another .
He clashes with Mack Miller ( Glen Corbett ) , a cocky champion , and falls for Mary Reeves ( Beverly Tyler ) , another top skater .