[2] With a win over Wisconsin on February 25, 2018, Michigan State clinched the outright Big Ten championship, their eighth under Tom Izzo.

[4] The Big Ten tournament was held from February 28 through March 4, 2018 at Madison Square Garden.

Four Big Ten schools (Michigan, Michigan State, Ohio State, and Purdue) were invited to the NCAA tournament, the fewest Big Ten teams selected for the Tournament since 2008.

[8] Ohio State forward Keita Bates-Diop was named Big Ten Player of the Year.

The 2018–19 season marked the first time in Big Ten history that the teams will play a 20-game conference schedule.

[21] On October 19, 2017, a panel of conference media selected a 10-member preseason All-Big Ten Team and Player of the Year.

Of the 351 schools that compete in Division I basketball, the Big Ten continues to have several of the top-30 school averages: Wisconsin (4th, 17,272), Indiana (10th, 15,590), Nebraska (11th, 15,492), Michigan State (14th, 14,797), Maryland (15th, 14,675), Purdue (17th, 14,343), Ohio State (21st, 13,495), Illinois (25th, 12,613), Iowa (28th, 12,026) and Minnesota (29th, 11,850).

[64] On January 9, 2018, Keita Bates-Diop was recognized as the Oscar Robertson National Player of the Week by the United States Basketball Writers Association.

[9] On March 6, the U.S. Basketball Writers Association released its 2017–18 Men's All-District Teams, based upon voting from its national membership.

[8] The following All-Big Ten selections were listed as seniors: Ohio State's Jae'Sean Tate, Purdue's Vincent Edwards and Isaac Haas.

Additionally, Michigan State's Miles Bridges and Jaren Jackson Jr. announced that they would enter the draft and sign with an agent.

[72][73][74] Penn State's Tony Carr also announced he would enter the draft and sign with and agent.

[76] Several other players announced that they would test the draft process, but did not hire an agent, including Wisconsin's Ethan Happ,[77] Purdue's Carsen Edwards,[78] Nebraska's James Palmer Jr.,[79] Michigan State's Nick Ward,[80] Michigan's Charles Matthews,[81] and Indiana's Juwan Morgan.