Idaho vs. Northern Arizona betting: College basketball preview for Jan. 31

Data Skrive
Data Skrive

Big Sky opponents meet when the Idaho Vandals (12-9, 4-4 Big Sky) visit the Northern Arizona Lumberjacks (8-14, 2-7 Big Sky) at J. Lawrence Walkup Skydome, tipping off at 8 p.m. ET on Saturday, January 31, 2026. The Lumberjacks are 5.5-point underdogs in the game. The point total is 147.5 for the matchup.

Check out all the Latest NCAA Basketball Betting Previews!

Spread

Idaho Cover -5.5 vs Northern Arizona -108

Bet $20, Payout $38.52

Idaho vs. Northern Arizona betting lines

  • Idaho moneyline odds to win: -232
  • Northern Arizona moneyline odds to win: +190
  • Spread: Idaho (-5.5)
  • Total: 147.5

Idaho statistics, trends and more

As the away team

  • Idaho has done a better job covering the spread in road games (4-6-0) than it has at home (2-4-0).
  • The Vandals have eclipsed the over/under more consistently when playing at home, hitting the over in three of six home matchups (50%). On the road, they have hit the over in four of 10 games (40%).
  • Idaho has played better as a moneyline favorite in home games, putting up a home record of 4-2, compared to going 2-2 on the road.

Recent trends

  • In their last 10 games, the Vandals have been racking up 77.3 points per contest, an average that’s a little lower than the 80.1 they’ve scored over the course of the 2025-26 season.
  • Idaho’s defense has been more porous as of late, as the team has allowed 77.2 points per game over its past 10 compared to the 74.0 points per game its opponents are averaging this season.
  • The Vandals’ last 10 contests have seen them make 9.3 three-pointers per game while shooting 33.3% from deep. Both numbers are down compared to their 2025-26 averages of 10.6 makes and 36.1%.

Idaho betting records this season

  • ATS Record: 7-11-0 (Home: 2-4-0; Away: 4-6-0)
  • ATS Record When Favored by 5.5+: 1-3-0 (As Favorite: 4-7-0; As Underdog: 3-4-0)
  • O-U-P: 8-10-0 (Home: 3-3-0; Away: 4-6-0)
  • Record When Moneyline Favorite: 7-5 (Home: 4-2; Away: 2-2)
  • Record When Moneyline Underdog: 2-4 (Home: 0-0; Away: 2-4)
Field Goal % Opp. Field Goal % Rebounds Opp. Rebounds Assists Turnovers
44.7 (215th in nation) 43.7 (168th) 33.1 (137th) 30.1 (126th) 13.0 (257th) 10.5 (108th)

Need to know more about sports betting before you put down a wager on Idaho vs. Northern Arizona? Here’s everything you need to know about how to bet.

Northern Arizona statistics, trends and more

As the home team

  • This year, Northern Arizona is 6-3-0 at home against the spread (.667 winning percentage). On the road, it is 4-5-0 ATS (.444).
  • In terms of the over/under, Lumberjacks games have gone over more frequently at home (five of nine, 55.6%) than away (two of nine, 22.2%).
  • When moneyline underdogs, the Lumberjacks have won a higher percentage of games at home (3-4) than away (0-9).

Recent trends

  • Over their past 10 games, the Lumberjacks are averaging 75.4 points per contest, 1.8 more than their season average (73.6).
  • Over its past 10 games, Northern Arizona is ceding 78.1 points per game, 1.9 more points than its season average (76.2).
  • Over their past 10 games, the Lumberjacks are draining 8.4 threes per contest, 0.8 more than their season average (7.6). They also own a better three-point percentage over their last 10 contests (41.0%) compared to their season average (38.2%).

Northern Arizona betting records this season

  • ATS Record: 11-8-0 (Home: 6-3-0; Away: 4-5-0)
  • ATS Record When Underdog by 5.5+: 6-3-0 (As Favorite: 2-0-0; As Underdog: 9-8-0)
  • O-U-P: 8-11-0 (Home: 5-4-0; Away: 2-7-0)
  • Record When Moneyline Favorite: 2-0 (Home: 2-0; Away: 0-0)
  • Record When Moneyline Underdog: 3-14 (Home: 3-4; Away: 0-9)
Field Goal % Opp. Field Goal % Rebounds Opp. Rebounds Assists Turnovers
47.2 (76th in nation) 46.5 (306th) 28.2 (339th) 32.4 (258th) 14.0 (182nd) 10.5 (108th)
Author Profile
BetDecider Team

The BetDecider team brings you the most current sports betting content, with expert insights and tips. Our aim is that you can make an informed betting decision, including best odds and exclusive sportsbook offers, to maximize your betting experience.

Ryan Knuppel

Knup Solutions [molongui_author_name]

About Ryan Knuppel

Ryan has been one of the leading sports business & iGaming professionals for over 15 years. He started as a freelance writer and now operates one of the top sports content agencies around, Knup Solutions. He has literally written 10,000 plus sports and betting related articles across the web.

 

Sports Network:

sports20.com, usawager.com, knupsports.com, baseballspotlight.com, basketballarticles.com, betdecider.com, njsportsbookreview.com, dunkelindex.com, sportspub.com, oddschoice.com

 

Betting Guide

How Money Line Works?

Moneyline betting is by far the easiest way to place a sports wager. There are no point spreads to parse, no garbage-time free throws to ruin your betting day, and no last-minute meaningless touchdowns to take you from a winner to a loser.

How to Bet Odds

When we, as sports fans, learned our multiplication tables, we aced the number 7. Seven, 14, 21, 28, 35, 42 were easy because we all watched football on the weekends. Multiplication by sevens, then add a three, a six after a missed PAT.

How to Bet on NFL Games

Baseball is America’s pastime, but football is America’s crazed passion, with its weekly schedule of games, millions of television viewers across the country and the world, and the billion-dollar stadiums that serve as Sunday cathedrals in 32 American cities.

What is the Spread?

If you are a golfer or have ever played on a bowling team, think of a point spread like a handicap. It is a way for two teams of differing abilities to play each other on equal footing.  The better team, and the favorite in the game, gives a certain amount …