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Pat Sullivan/Associated Press

It's time for another batch of MLB report cards. This time, we'll be grading each team's season at the three-fourths mark of the 2015 campaign.

Every team is different, so there can't be one universal grading system. But in most cases, grades are directly correlated to preseason expectations.

Teams that were hyped to make noise in 2015 but have failed to do so will receive low marks, while under-the-radar clubs that have surprised the baseball world will earn higher grades.

The Chicago Cubs, Houston Astros, Minnesota Twins and New York Mets are just a few organizations that have enjoyed magical 2015 runs thus far, and their grades will reflect that. On the other hand, the San Diego Padres, Boston Red Sox, Seattle Mariners and Detroit Tigers can't wait to see their seasons end and will be judged accordingly.

But it's not always about wins and losses. Teams like the Atlanta Braves, Philadelphia Phillies, Milwaukee Brewers and Colorado Rockies may not have the best records, but each of their grades received bumps due to shrewd moves by the front office that have put them in better position for future success.

Make sure to let your voices be heard in the comment section below. How do you feel about your favorite team's grade? Was that F grade too harsh or that A mark too kind? Let us know.

Let's get started with the Arizona Diamondbacks.