Portland State vs. Idaho State Dunkel Predictions & Vegas Odds - Big Sky Tournament

The Big Sky conference tournament continues Sunday as the No. 1 seed Portland State Vikings (19-10, 13-5 Big Sky) face off against the No. 9 seed Idaho State Bengals (13-19, 5-13 Big Sky) at Idaho Central Arena, beginning at 7:30 p.m. ET on ESPN+. Portland State is a 5.5-point favorite to move one step closer to an automatic berth in the NCAA Tournament bracket. The point total in the matchup is 140.5.

In its last outing on Monday, Portland State earned an 84-60 win over Weber State. Jaylin Henderson totaled 20 points, seven rebounds and 10 assists for Portland State. Idaho State is coming off of a 73-65 win over Northern Arizona in its most recent game on Saturday. In Idaho State's win, Connor Hollenbeck led the team with 17 points (adding 13 rebounds and four assists).

Portland State vs. Idaho State Odds and Game Time

• When: Sunday, March 8, 2026 at 7:30 p.m. ET
• Where: Idaho Central Arena in Boise, Idaho
• Spread favorite: Portland State -5.5
• Moneyline favorite: Portland State -258
• Moneyline underdog: Idaho State +208
• Over/Under: 140.5 points

How to watch Portland State vs. Idaho State

• TV Channel: ESPN+
• Check out the rest of our Dunkel Index NCAA Basketball Picks!

Betting the Over/Under: Portland State vs. Idaho State

• This season, 17 of Portland State's 26 games have gone over Sunday's total of 140.5 points.
• This season, 20 of Idaho State's games have ended with a combined score higher than 140.5 points.
• The Vikings average 76.5 points per game against the Bengals' 74.4, amounting to 10.4 points over the matchup's over/under of 140.5.
• The 145.8 points per game these two teams surrender to opponents combined this season are 5.3 more than the 140.5-point over/under in this contest.
• Portland State has seen a 146.4 average over/under in its games this season, 5.9 points more than the over/under in this matchup.
• The over/under for this matchup is 9.8 points lower than the average over/under in Idaho State's games this season of 150.3.

Betting the Spread: Portland State vs. Idaho State

• Portland State has played 26 games, with 18 wins against the spread.
• The Vikings have an against the spread record of 4-3 in their seven games when favored by 5.5 points or more so far this season.
• Against the spread, Idaho State is 14-15-0 this season.
• This season, the Bengals have an against-the-spread record of 4-3 in their seven games as an underdog of 5.5 points or more.
• At home this year, Portland State is 8-3 overall and 7-4 against the spread.
• This year, as a 5.5-point favorite or greater at home, Portland State is 3-3 ATS.
• Idaho State is 3-12 overall, and 7-8 against the spread, on the road.

Betting the Moneyline: Portland State vs. Idaho State

• Portland State has won 14, or 82.4%, of the 17 games it has played as the moneyline favorite this season.
• The Vikings have a record of 5-2 when favored by -258 or more by bookmakers this season.
• Bookmakers have implied with the moneyline set for this matchup that Portland State has a 72.1% chance to win.
• Idaho State has come away with three wins in the 16 contests it has been listed as the moneyline underdog this season.
• The Bengals have yet to win this season when listed as an underdog of +208 or worse on the moneyline this season.
• The moneyline set for this matchup implies Idaho State has a 32.5% chance of walking away with the win.