New York baseball fans may want to brush up on their writing skills before the second half of the Major League Baseball season.

A study conducted by online plagiarism checker Grammarly found that fans of the Yankees ranked 29th out of 30 MLB teams in average grammar mistakes per 100 words with 2.18, according to a release from the company.

The bottom-of-the-barrel finish represented a steep drop from last season, when Yankees fans finished ninth.

Mets fans didn’t fare much better, finishing 23rd with an average of 1.90 mistakes per 100 words, moving up a spot from their 24th place finish a year ago.

The study was conducted using comments of at least 15 words in length from each MLB team’s SB Nation blog between June 1 and June 14.

The 3,000 comments from each site were then run through the Grammarly editor and checked for grammar, spelling, sentence structure and punctuation errors in each comment before using the sums to calculate the average number of errors, according to the release.

The most grammatically sound fanbase in MLB belonged to the Miami Marlins, which averaged only 1.39 errors per 100 words over the two-week period, according to the study.

The National League edged the American League by just 0.03 mistakes per 100 words, averaging 1.79 slip-ups among its 15 franchises.