Promotion cutoffs and participation counts across all four divisions. Data from the official USACO results page.
The bronze division had 4875 total participants, of whom 3712 were pre-college students. All competitors who scored 700 or higher on this contest are automatically promoted to the silver division.
The silver division had 3185 total participants, of whom 2451 were pre-college students. All competitors who scored 700 or higher on this contest are automatically promoted to the gold division.
The gold division had 1196 total participants, of whom 879 were pre-college students. All competitors who scored 700 or higher on this contest are automatically promoted to the platinum division. The list of USA pre-college students who were promoted
The platinum division had 314 total participants, of whom 233 were pre-college students. Results for top scorers are here. Congratulations to all of the top participants for their excellent results!