 But now we've got what we call the stat cast era. We really can narrow it down and get it down to inches, basically, based on where it hit and how far it would have gone because a lot of them hit the seats and didn't end the travels. And the longest Nomar Mazzara of the Texas Rangers, 505 feet. Now, that's since 2015, the longest home run ever hit in the stat cast era, which goes about 10 years.