Entering its 104th year of competition, the 2017 Lamar Hunt U.S. Open Cup format is now set, with the remaining eligible Open Division local qualifiers advancing directly to the First Round on May 10. As a result, the tiered-bracket and single-game knockout format will see a modern era record of 99 teams participate.
As has been the case the past two years, teams will be paired geographically from the First Round through the Fourth Round. After the Fourth Round, a geographically-based random draw will take place to determine the Round of 16 matchups and set a fixed bracket to the Final, scheduled for Sept.