Move over, 50 Cent, there’s a new worst first pitch of all time … courtesy of Conor McGregor’s ceremonial toss at the Cubs game on Tuesday!!!

The sharply-dressed UFC superstar strutted to the mound for the first pitch before the Cubbies faced off against the Minnesota Twins at Wrigley Field … and chucked his attempt about 20 feet to the right of home plate.

On a positive note, McGregor’s repaired leg looked great!

The fighter was a great sport about it all … dapping up Cubs infielder Patrick Wisdom after the wild pitch.

Of course, this is Conor we’re talking about … so we’re assuming (and hoping) he was just trying to give fans a fun time.

Then again, we’ve seen him throw a football before … and he was mocked incessantly for that, too.

It’s a safe bet Conor’s pitch will now take honors for “worst first pitch ever” from Fiddy, who had a straight-up embarrassing toss that went wide left before a Mets game in 2014.

Conor’s been living it up while rehabbing his leg … from hanging with Justin Bieber to attending the VMAs (where he also tested out his arm with a different object) and hitting up just about every hotspot L.A. has to offer.

Never change, Conor … but maybe try some practice throws next time???