BetMGM Offers $150 in Bonus Bets for College Basketball Tournament Betting on Saturday

New users can claim the latest BetMGM bonus code SPORTSLINE for bonus bets on college basketball games this weekend.

Mar. 28, 2026 at 7:27pm

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A fractured, geometric painting depicting a college basketball game broken down into sharp, overlapping planes of vibrant team colors, capturing the raw intensity of the tournament action.A cubist interpretation of the intense action and energy of a high-stakes college basketball tournament matchup.San Jose Today

BetMGM is offering a special promotion for new users to get $150 in bonus bets if their first bet wins, or up to $1,500 in bonus bets if their qualifying wager loses, when they use the bonus code SPORTSLINE. The offer is available for college basketball tournament games on Saturday, including the matchup between Illinois and Iowa.

Why it matters

This promotion provides an opportunity for new bettors to get started with BetMGM and bet on the exciting college basketball tournament action this weekend, with the chance to earn bonus bets to use on future wagers.

The details

The BetMGM bonus code SPORTSLINE is available for new users in eligible states. The offer provides $150 in bonus bets if the user's first bet wins, or up to $1,500 in bonus bets if the qualifying wager loses. The promotion can be used for college basketball games on Saturday, including the 6:09 p.m. ET matchup between Illinois and Iowa, as well as the later game featuring Arizona.

  • The college basketball tournament games on Saturday, March 28, 2026 begin at 6:09 p.m. ET.
  • The BetMGM bonus code SPORTSLINE promotion is available starting on March 28, 2026.

The players

BetMGM

A leading online sportsbook and casino operator in the United States.

Illinois

A college basketball team that has been dominant in the tournament so far, winning their first three games by double digits.

Iowa

A college basketball team that has pulled off several upsets in the tournament, including wins over Florida and Nebraska as underdogs.

Arizona

A college basketball team that is also in action on Saturday night, facing off as a 5.5-point favorite.

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What they’re saying

“This promotion provides an excellent opportunity for new bettors to get started with BetMGM and bet on the exciting college basketball tournament action this weekend.”

— Blake Von Hagen, Sportsline.com Writer

What’s next

Bettors can sign up for a new BetMGM account using the bonus code SPORTSLINE to claim the promotion and start betting on the college basketball tournament games this weekend.

The takeaway

The BetMGM bonus code SPORTSLINE is a great way for new users to get involved in the college basketball tournament action, with the chance to earn bonus bets to use on future wagers. The promotion provides an incentive for bettors to try out BetMGM's sportsbook offerings.