William Lowell Putnam Competition
The Putnam competition takes place on the first Saturday in December of each year. This year, it will take place on December 3.
The Putnam competition consists of a morning session and an afternoon session, each half having six problems and three hours to solve them. Students work individually. The competition is nationwide.
MAA/NCS Team Competition
The North Central section of the Mathematical Association of America holds a team competition that takes place each year on a Saturday in mid-November. This year, it will take place on November 12.
The competition itself is three hours for ten problems. Students are organized into teams of three or two students, and work collaboratively. The competition consists of other teams from the Midwest and Canada.