Students at GMS can participate in academic competitions throughout the school year to expand their knowledge and challenge themselves. While some of these competitions are League competitions, others involve competing with students state-wide or nation-wide.

The League sponsors an annual Spelling Bee in mid January. To qualify for the league competition, students must participate in the GMS Spelling Bee in December. Any student can sign up to compete in the building-level spelling bee. The top five students at each grade level will advance to the league competition. The winner of the Pioneer League Spelling Bee has the option of advancing to divisional and state competition.

Math Relays is a League competition. The competition is held in March. Students compete against other league schools by completing a variety of written tests in math computation and story problems, both with and without the use of a calculator. The relays shall consist of two tests. Each test will be 45 minutes in length. The first test will cover math computation and the second test will cover problem solving. Students may use calculators on the problem solving test. Each test will contain at least 80 problems of varying difficulty. Each school may send 5 students from each grade.  All five students' scores will count towards the team place earned in the competition.