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Bradley Leeb-USA TODAY Sports
The Indiana Hoosiers are the No. 1 seed in the East region.

(For more help with your bracket, check out our 68 facts piece.)

Welcome to the 2013 Men's Tournament Challenge. It's that time of year again, when all chatter about teams involves phrases like "body of work," good wins, bad losses, and of course, RPIs, résumés and the dreaded bubble. Once the field of 68 has been announced, though, how teams got in matters little, and the excitement of filling out your bracket begins.

All you have to do is select who you think will win each of the 63 tournament games that take place from March 21 on (for those hoping to pick the First Four games, you'll have to give our Streak for the Cash game a try). For each game you get right, you earn points. The point value for a correct pick increases with each round of the tournament, culminating with the championship game on April 8. Once you've made your selections, all you do is sit back, relax and pull for your picks to survive and advance.

If you score the most points, you'll have a chance to win the grand prize of a $10,000 Best Buy gift card.

Considering the unpredictable nature of the tournament every year, you certainly don't have to be a college basketball savant to be successful. It's a fun and easy game to play against friends, family and coworkers. You'll see the seeds on the bracket, which will give you a better idea of which teams are expected to advance in each round. But don't be too influenced by those numbers next to each team, because upsets happen every year, and picking the right ones is what separates the haves from the have-nots in Tournament Challenge.

And that's where the real fun lies.

It's your bracket. Pick whichever teams you want. And better yet, we'll give you the opportunity to fill out up to 10 different brackets, so you can get creative with your picks, if you so choose. Pick the school with the best colors, take your chances with the schools closest to where you live or play the mascot card when determining your selections.

Want to be bold and take a huge underdog to reach the Final Four? If you know someone who took Butler or VCU to get that far in 2011, it's likely they'll never let you forget it. Last year, not one, but two 15-seeds pulled off early shockers, so will that persuade you to go crazy with upsets, or do you expect the favorites to hold up their end this year?

It's been a topsy-turvy season at or near the top of the rankings, with Indiana, Michigan, Duke, Louisville and Gonzaga among the teams to occupy the No. 1 slot. Meanwhile, the Miami Hurricanes have not reached the top spot in the polls, but have turned heads with their strong play all season long.

Take your best shot to stand out from the crowd in hopes of finding your name at the top of the leaderboard in April.

• President Obama's Entry

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  Our 44th president took time out of his busy schedule to fill out a bracket in the game with our own Andy Katz. Watch the video of him making his picks and check out his entry to follow along with his picks to see where he stacks up against the rest of SportsNation. - Click here