The 1987 Big Sky Conference men's basketball tournament was the twelfth edition, held March 5–7 at the Walkup Skydome at Northern Arizona University in Flagstaff, Arizona.
[1] Seventh-seeded Idaho State upset fourth-seeded Nevada in the championship game, 92–81, to clinch their second Big Sky tournament title (first was a decade earlier).
[6] For the fourth year, all eligible teams participated in the tournament field and were placed in the quarterfinals.
Seedings and pairings were determined by regular season conference records.
Source:[3][7] The Bengals received the automatic bid to the 64-team NCAA tournament, but were seeded sixteenth in the West regional and were routed in the first round by UNLV in Salt Lake City.