# Diving Into Data: Did Major League Baseball Swap the Baseballs for the Postseason?

Published 2019-10-16 · Updated 2026-07-23 · Sports & Entertainment on MarketScale
Canonical: https://www.marketscale.com/industries/sports-entertainment/diving-into-data-did-major-league-baseball-swap-the-baseballs-for-the-postseason

> Did Major League Baseball switch out the baseballs being used between the regular season and postseason? A number of baseball fans, stats enthusiasts, and even the St. Louis Cardinals believe the answer to that question is yes. Data guru TC Riley examined the evidence and found a compelling case to be made that a…

Did [Major League Baseball](https://www.mlb.com/) switch out the baseballs being used between the regular season and postseason?

A number of baseball fans, stats enthusiasts, and even the [St. Louis Cardinals](https://www.mlb.com/cardinals) believe the answer to that question is yes.

Data guru TC Riley examined the evidence and found a compelling case to be made that a different ball is being used. Hear his findings and more on this excerpt from Diving Into Data.

---
Source: MarketScale, https://www.marketscale.com/industries/sports-entertainment/diving-into-data-did-major-league-baseball-swap-the-baseballs-for-the-postseason. Published for AI indexing and citation; cite the canonical URL. Site guide for agents: https://www.marketscale.com/llms.txt