Demian Maia vs Mark Munoz fight metric report shows close win for Maia

Photo via Fight Metric

If you thought the Demian Maia vs. Mark Munoz fight was as absurdly close as it looked, well, you were right.
According to the fine folks at Fight Metric, the official statistics provider for the UFC (check 'em out here), under the current 10-point must system, the fight should have been ruled a draw.
You aren't likely to find a lot of folks that will argue with that decision considering how even the fight was over three rounds.
However, what's strange here is that Fight Metric gives Maia a performance rating of 189 to Munoz's 142. Why is this odd?
Because the striking and grappling numbers don't seem to show that to be the case. Have a look at both:

As you can see, Munoz was awarded 75 total strikes to just 40 for Maia. During the bout, it often seemed as though Maia was landing much cleaner with his power punches vis a vis significant strikes.
But as you can see, Munoz has the edge there, too, 44-32. He also leads in every other category in the striking department.
Let's look at the grappling:

Munoz was successful on three of seven takedown attempts while Maia laid an egg. Both fighters were credited with one pass to half guard while Maia attempted two submissions to Munoz's one.
Despite all of that, Fight Metric awarded the decision to Maia, 29-28.