Idaho vs. Portland State Prediction, Odds, and Key Players to Watch for Big Sky Championship Third Round

Iain MacMillan | Mar 10, 2025

Portland State is a 4.5-point favorite to Idaho in the third round of the Big Sky Tournament. / James Snook-Imagn Images

Portland State and Idaho will face off in the third round of the Big Sky Tournament on Monday night, with a date with Montana in the semifinals on the line.

Portland State beat Idaho in both of their regular season meetings. Can they complete the sweep against the Vandals tonight? Let's find out what the oddsmakers think.

Idaho vs. Portland State Odds, Spread, and Total

Odds via BetMGM Sportsbook

Spread

• Idaho +4.5 (-110)
• Portland State -4.5 (-110)

Moneyline

• Idaho +165
• Portland State -200

Total

• OVER 142.5 (-115)
• UNDER 142.5 (-105)

Idaho vs. Portland State How to Watch

• Date: Monday, March 10
• Game Time: 10:00 PM EST
• Venue: Idaho Central Arena
• How to Watch (TV): ESPN+
• Idaho Record: 13-18 (8-10 Conference)
• Portland State Record: 19-12 (11-7 Conference)

Idaho vs. Portland State Key Players to Watch

Idaho

Tyler Mrus: Idaho's forward is its primary three-point shooter, with 185 attempts from beyond the arc this season. He's also their best three-point shooter, hitting them at a rate of 38.4%. If he gets hot tonight, Portland State could be in trouble.

Portland State

Terri Miller Jr.: The Vikings' forward has been a key part of this team in the second half of the season. Not only has he scored 20+ points in two of these last five games, but he's played a massive role on defense, including racking up three steals in their final regular season game against Sacramento State.

Idaho vs. Portland State Prediction and Pick

Defense is going to be the difference maker in tonight's tournament matchup. Portland State has one of the best defenses in the conference and currently ranks 89th in defensive efficiency in all of division one. Tonight, they face an Idaho team that has been one of the worst.

The Vandals rank 343rd in defensive efficiency and are allowing opposing teams to shoot 47.5% from the field. Their poor play in the interior is even worse, allowing teams to shoot 55.1% from two-point range, which is going to be important against a Vikings team that ranks 18th in two-point shot rate.

I'll lay the points with Portland State tonight.

Pick: Portland State -4.5 (-110) via BetMGM

---

As a new BetMGM user, you can now claim up to $1,500 in bonus bets when you create an account using BetMGM bonus code SI1500, deposit at least $10, and place a real money wager. If you lose your bet, BetMGM will return your entire stake as bonus bets.

Odds refresh periodically and are subject to change.

If you or someone you know has a gambling problem and wants help, call 1-800-GAMBLER.

You can check out all of Iain's bets here!