It’s that time of year again when the nation turns its attention to the NCAA Men’s Basketball Tournament. It is estimated that over 40 million Americans will take part by filling out at least one bracket.

The Center for Sports Analytics website lists dozens of statistical tools that can help you decide if a #16 seed can again knock off a #1 seed. Here are a few of our favorite sites.

• Ken Pomeroy’s ratings
• Jeff Sagarin’s ratings
• Sonny Moore’s ratings
• Joel Sokol’s LRMC ratings
• ESPN’s Basketball Power Index 

Good luck!