| Year: | 2021 |
| Conference: | Big Sky Conference |
| Division: | I |
| Gender: | Men's |
| Teams: | 11 |
| Arena: | Idaho Central Arena |
| City: | Boise, Idaho |
| Champions: | Eastern Washington |
| Titlecount: | 3rd |
| Coach: | Shantay Legans |
| Coachcount: | 1st |
| Mvp: | Tanner Groves |
| Mvpteam: | Eastern Washington |
| Television: | Pluto TV, ESPNU (final) |
The 2021 Big Sky Conference men's basketball tournament was the postseason tournament for the Big Sky Conference, held at Idaho Central Arena in Boise, Idaho. It was the 46th edition of the tournament, which debuted
The eleven teams were seeded by conference record, with a tiebreaker system for identical conference records. The top five teams received a first-round bye.[1]
| Seed | School | Record | Tiebreaker 1 |
|---|---|---|---|
| 1 | Southern Utah | 12–2 | |
| 2 | Eastern Washington | 12–3 | 2–0 vs. Montana |
| 3 | Weber State | 12–3 | 1–1 vs. Montana |
| 4 | Idaho State | 8–6 | 1–1 vs. E. Washington |
| 5 | Montana State | 8–6 | 0–2 vs. E. Washington |
| 6 | Montana | 7–9 | |
| 7 | Portland State | 6–8 | 1–1 vs. Weber State |
| 8 | Northern Colorado | 6–8 | 0–1 vs. Weber State |
| 9 | Sacramento State | 5–9 | |
| 10 | Northern Arizona | 4–10 | |
| 11 | Idaho | 1–17 | |
| Session | Game | Time | Matchup | Score | Television | Attendance | |
|---|---|---|---|---|---|---|---|
| First round – Wednesday, March 10 | |||||||
| 1 | 1 | 9:30 am | No. 8 Northern Colorado vs. No. 9 Sacramento State | 90–83 | Pluto TV 1050 | ||
| 2 | 12:00 pm | No. 7 Portland State vs. No. 10 Northern Arizona | 66–77 | ||||
| 3 | 2:30 pm | No. 6 Montana vs. No. 11 Idaho | 69–64 | ||||
| Quarterfinals – Thursday, March 11 | |||||||
| 2 | 4 | 12:00 pm | No. 1 Southern Utah vs. No. 8 Northern Colorado | 91–83 | Pluto TV 1050 | ||
| 5 | 2:30 pm | No. 4 Idaho State vs. No. 5 Montana State | 63–71 | ||||
| 3 | 6 | 5:30 pm | No. 2 Eastern Washington vs. No. 10 Northern Arizona | 66–60 | |||
| 7 | 8:00 pm | No. 3 Weber State vs. No. 6 Montana | 75–80 | ||||
| Semifinals – Friday, March 12 | |||||||
| 4 | 8 | 5:30 pm | No. 1 Southern Utah vs. No. 5 Montana State | 77–80OT | Pluto TV 1050 | ||
| 9 | 8:00 pm | No. 2 Eastern Washington vs. No. 6 Montana | 78–50 | ||||
| Championship game – Saturday, March 13 | |||||||
| 5 | 10 | 6:00 pm | No. 2 Eastern Washington vs. No. 5 Montana State | 65–55 | ESPNU | ||
| Game times in MT. Rankings denote tournament seeding.[2] | |||||||