Team math competition for middle-school students, held at schools across eastern Massachusetts since 1965.

| Meet | Date | Calculators | Round topics | Practice |
|---|---|---|---|---|
| 1 | No | Topics for Meet 1 | Practice for Meet 1 | |
| 2 | No | Topics for Meet 2 | Practice for Meet 2 | |
| 3 | No | Topics for Meet 3 | Practice for Meet 3 | |
| 4 | Yes | Topics for Meet 4 | Practice for Meet 4 | |
| 5 | Yes | Topics for Meet 5 | Practice for Meet 5 |
These are the league's scheduled dates. Each cluster sets its own date and site for every meet, and some meet on a different day; your cluster's page has its dates and sites, and a calendar file of its own.

Schools compete in geographic clusters, so each of the five meets is held at a nearby school.
Ten regulars score for the team, and alternates take the same tests.
Teams are grouped into divisions by recent results, and the top three teams in each division earn awards.
$250 per team covers the whole season, alternates included.