On May 16, 1998, Mark McGwire hit a ball so far… the stadium couldn’t measure it. Initial estimate: 545 feet Adjusted estimate: ~520 feet Even in the modern era—with distance grids and tracking systems—this one broke the scale. One of the longest home runs ever recorded. Sources: Bill Jenkinson, Baseball’s Ultimate Power Mark McGwire interview (1999) Author eyewitness accounts

This McGwire Home Run Was Too Far to Track