Identifying Pitcher-Modified Baseballs is Trickier Than it Seems Stephanie Springer April 13, 2021 Share: > Image credit: © Kelley L Cox-USA TODAY Sports Subscribe to Baseball ProspectusAfter all, what is an average MLB baseball? Full access to this article is for Baseball Prospectus subscribers. Sign up today to get access to insightful analysis for the discerning baseball fan. Super-Premium - $66.99 / yearPremium - $45.95 / yearPremium Monthly - $6.99 / monthBasic - Free Subscribe to Baseball Prospectus In This Article 9 BaseballForeign SubstancesSpin RateSticky StuffTesting The Baseball Related Articles Rōki Sasaki is a Unicorn B by Mario Delgado Genzor 3/18 6 Five & Dive, Episode 279: The House Always Wins by Craig Goldstein and Patrick Dubuque 4/21 0 Box Score Banter: Go Bananas B by Janice Scurio 4/20 0 MLB’s Crackdown Might Be Working: Spin Is Down $ by Robert Arthur 4/10 0 The Science of Spin: How Sticky Stuff Spikes RPM B by Robert Arthur 1/19 5 Latest Articles What They’re Saying: Harry Ford Edition $ by Howard Megdal 12/19 0 Fantasy Retrospective 2025: Starting Pitcher, Part 2 $ by Mike Gianella 12/19 1 2026 Prospects: San Francisco Giants Top Prospects $ by Eli Walsh and BP Prospect Staff 12/19 1 Ten Christmas Wishes for MLB B by Mario Delgado Genzor 12/19 2 MLB Owners Agree to Share Their Minor-League Data B by Marc Normandin 12/19 9 more chevron_rightchevron_right Stephanie Springer More about: BaseballForeign SubstancesSpin RateSticky StuffTesting The Baseball Latest Articles What They’re Saying: Harry Ford Edition $ by Howard Megdal 12/19 0 Fantasy Retrospective 2025: Starting Pitcher, Part 2 $ by Mike Gianella 12/19 1 2026 Prospects: San Francisco Giants Top Prospects $ by Eli Walsh and BP Prospect Staff 12/19 1 Related Articles Rōki Sasaki is a Unicorn B by Mario Delgado Genzor 3/18 6 Five & Dive, Episode 279: The House Always Wins by Craig Goldstein and Patrick Dubuque 4/21 0 Box Score Banter: Go Bananas B by Janice Scurio 4/20 0 You need to be logged in to comment. Login or Subscribe Comments are closed.
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