The top 10 neighbors for SI Extra Mustard span authors, journalists, podcasts, a research organization, and a fellow sports website — no single subcategory dominates, and the scores compress into a narrow band from 0.82 down to 0.80.

The shape is flat: Simon Sinek (0.82, Authors) leads by the thinnest margin over Men in Blazers (0.81, Podcasts and Radio), Glennon Doyle (0.81, Authors), Keith Law (0.81, Journalists), and Brené Brown (0.81, Authors). Three of the top five are Authors — a subcategory with no obvious connection to a sports-humor website — while the remaining slots go to a Podcasts and Radio entry, two Journalists (Ken Jennings at 0.81 as a TV Personality, The Players' Tribune at 0.81 as the lone fellow Website in the top 10), James Clear (0.81, Authors), and NASA's Perseverance Mars Rover (0.81, Research Organizations). SI Extra Mustard's own subcategory — Websites — appears exactly once in the top 10, in The Players' Tribune. The cross-kind character of this cluster is the defining feature: the audience shape aligns more closely with popular nonfiction authors and sports journalists than with other sports or general-interest websites.

The flat distribution and the author-heavy composition together suggest an audience whose attention is broadly distributed across thoughtful, text-forward media rather than concentrated in any single sports or entertainment niche.