What is every Big Sky Conference team's record against the over/under line as an underdog since the 2017-2018 season?

Definitions
Team Over Record Over % Under % Total +/-
Idaho State 39-26-0 60.0% 40.0% +4.5
North Dakota 37-26-0 58.7% 41.3% +3.9
S Utah 31-24-0 56.4% 43.6% +0.2
Montana St 29-25-1 53.7% 46.3% -0.5
E Washingtn 25-23-0 52.1% 47.9% +1.5
Sac State 28-26-1 51.8% 48.1% -2.1
Idaho 30-30-2 50.0% 50.0% +0.1
N Colorado 13-13-0 50.0% 50.0% +0.9
Montana 11-12-0 47.8% 52.2% -2.8
Weber State 18-20-0 47.4% 52.6% +0.4
Portland St 19-22-3 46.3% 53.7% -0.5
N Arizona 30-37-1 44.8% 55.2% -1.1