https://thespade.substack.com/
The Spade: A Football Analytics Newsletter | Ray Carpenter | Substack
Digging up football data visualizations. Click to read The Spade: A Football Analytics Newsletter, by Ray Carpenter, a Substack publication.
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https://pubs.lib.uiowa.edu/iowareview/article/id/16530/
Names of the Spade | The Iowa Review
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