General Information


The major events of each tournament include individual tests, the team round, and the guts round. See testing information for more details.

In addition, the Friday night before each tournament features optional social events, including dinner and ice cream. More information will be provided to competitors closer to the tournament dates.

While the November and February tournaments follow similar formats, they have many important distinctions. Please refer to this page for an overview of the differences and this page for a full description of the tests.

Calculators and Other Computational Aids

You may not use books, notes, calculators, pocket organizers, slide-rules, abaci, or any other computational aids. Similarly you may not use graph paper, rulers, protractors, compasses, architectural tools, or any other drawing aids. In addition, communication devices such as laptops, PDAs, and cell phones are prohibited.

Answer Format

Complete description of acceptable answers can be found in this PDF.


Both of our competitions are intended for high school students, but in rare cases, exceptionally strong middle school students have competed at our tournaments. Due to space concerns, we will unfortunately be unable to accommodate every team and individual who applies. No student may attend both the November and February tournaments.

Most students compete in teams of 4-6 (November) and 6-8 (February). As of Fall 2017, all members of a team must live within 150 miles of each other as under our former rule, or be from a well-defined geographic region which must be contiguous and must not intersect another region: regions can be as small as a single school or as large as a collection of states. Obvious gerrymandering is not acceptable. This rule is adapted from rule 4 of the American Regional Mathematics League, found on this page. Due to space concerns, no organization may send more than 5 teams to the November tournament, or more than 3 teams to the February tournament. Students may also apply to participate as affiliated (i.e. affiliated to a competing organization) or unaffiliated individuals, who participate officially in the individual rounds and on unofficial teams (formed day-of) in the team and guts rounds.

Students and teams unable to participate onsite may enter our unofficial online tournament.

For more information, please see our application and registration policies.


If a student believes that an answer given on the answer key is incorrect, he must go to the designated Appeals Room and submit an appeal in writing. The deadline to do so will be announced on the day of the contest.

Decisions of the HMMT coordinators are final.


Prizes will be awarded to the ten highest-scoring individuals overall, the top ten scorers on each of the individual tests, the five highest-scoring teams on the Team Round, and the five highest-scoring teams on the Guts Round. The top ten teams overall will be named the Sweepstakes winners. Ties will not be broken.