March Madness is officially underway, and everybody is hoping their bracket will win out. But what if it turned out that we all lost—to social media? Is it possible Twitter actually has the best picks of them all?

This is what the data folks at Prime Visibility are suggesting. According to their research, the company has accurately predicted 74 percent of games in the last two years, based on the public's positive comments toward each team. That would have put their choices in the top 5 percent of all brackets last year. It's a better performance than simply picking the favorites according to gamblers—who win 71 percent of the time.

For example, social media's bracket on Thursday night probably beat yours. The company got 13 out of 16 games correct—the three losses (Baylor, Iowa State and LSU) were each by a single point. That puts it ahead of 98.7 percent of brackets at ESPN, and with hope to do even better: All of its Sweet 16, Elite Eight and Final Four teams are still alive.

Prime Visibility is a full-service digital marketing agency with experience in various channels including social media. The results for its March Madness bracket came by combing through Twitter and Facebook, looking for positive mentions throughout the entire college basketball season for each team. The company has analyzed 4.25 million positive mentions—ignoring neutral or negative ones, such as "Kentucky is playing a game today." Here is what its 2015 bracket looks like: