In celebration of March Madness this month, Online Vegas Casino is hosting March Tournament Madness, offering more than $475,000 guaranteed in prizes over the course of more than 165 different online casino tournaments.

Online Vegas Casino has gotten into the spirit of March Madness this year, big time—offering prizes of over $475K guaranteed throughout more than 165 casino tournament events.

Among the Featured Tournaments in this month-long event is the St. Patrick’s Week Long $25,000 Bonus Buck Freeroll for players of the Luck of the Irish slots and many $30,000 Guaranteed Weekend Madness events involving a range of OnlineVegas slots.

For players who just don’t have a lot time to commit to playing, the series also features Quickie$ tournaments. These are 2 1/2 hour events with $1.99 buy-ins and $500 prize pools running Monday through Friday from 9:00 pm to 1:30 am ET.

In addition, each day between 9:00 am and 9:00 pm ET are events with only $3.99 buy-ins, each awarding a $2,500 guaranteed prize pool. First place gets $350 and the rest of the prize pool is divided up amongst the top 500 finishers.

And those are just scratching the surface. March Tournament Madness at OnlineVegas Casino also includes $2,500 Bonus buck Weekends for $0.99 buy-ins; $1,500 Frugal Fridays for $1.99 buy-ins; Beat the Bank Pot Percentage tournaments every Sunday for $2.50 buy-ins; Red-Eye Pot Percentage tournaments daily from 12:30 am to 8:30 am, also for $2.50 buy-ins; and $8,888 Guaranteed slots tournaments every Thursday, for $6.99 buy-ins, awarding $4,444 in cash and $4,444 in bonus bucks at each. There’s even a Blackjack pot percentage tournament three times a week for $0.99.

Every single tournament in the Online Vegas March Tournament Madness marathon is a rebuy tournament.