[OC] Pirates’ franchise historical performance relative to .500

Containment guy here!

During the offseason, I'm creating a graph like this for every MLB team. It tracks each franchise's cumulative record relative to .500 (equal wins and losses) throughout their entire history.

I was inspired by the Pirates loss to the White Sox on July 19 2025 that put the franchise record at .500 for the first time since August 22 1903.

The annotations show the franchise's all-time peak, lowest point, and most recent time at exactly .500.

The complete album can be seen here. I also made the NFL and NHL charts (before the current season).

PS: I know, Baseball Reference shows the franchise record as being 10910-10910. I think they have a mistake in the 1909 season. For that season they have 110-42-2. I believe the accurate record was 111-42-1.