SI Sportsbook Promo Code Colorado: Bet $20, Get $300 on March Madness

The latest SI Sportsbook promo code has dropped and is offering users a guaranteed win on March Madness. Bet $20, Get $300 INSTANTLY when betting on your favorite team, find out how to claim now.
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SI Sportsbook Promo Code Colorado: Bet $20, Get $300 on March Madness

March Madness fully tips off tonight with a full schedule of college basketball to bet on. If you plan on betting on March Madness, the SI Sportsbook promo code for the Colorado sports betting market is the best way to boost your bankroll.

New users can claim a huge bet $20, win $300 offer when betting on any March Madness game of their choice, and the best thing is your $300 is guaranteed.

Simply click our links below to activate the SI Sportsbook promo code, register for a new SI Sportsbook account and your $300 bonus will be locked in, once your wager settles.

Sports Illustrated has long been your favorite sports publication, and SI Sportsbook will quickly become your favorite Colorado sports betting operator. This crazy SI Sportsbook promo code is just one of the many reasons SI Sportsbook are growing rapidly in Colorado.

Ready to get in on the action? Follow our steps below to claim your SI Sportsbook promo code for March Madness now!

SI Sportsbook Promo Code: How to Claim

Claiming this Colorado sports betting exclusive SI Sportsbook promo code is simple. Just follow our steps and get ready to win big backing your favorite team.

Step one: Click Here or click the button below to claim your SI Sportsbook promo code

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Step two: Open a new SI sportsbook account

Step three: Deposit a Minimum of $20 into your new account

Step four: Bet $20 on any March Madness matchup

Step five: Get $300 guaranteed - even if your wager loses.


Liam Hudson is an experienced sports writer, with a finger on the pulse of all things NFL and College Football. As a fanatical New England Patriots fan, he spends most of his time convincing others he is not a bandwagoner and defending Bill Belichick in Brady vs Bill arguments. He is also a Fantasy Football fanatic and spends far too much time analyzing player data and statistics in hopes of finding a hidden gem in one of his many yearly fantasy leagues.

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