Statistical and historical queries ("all-time passing leaders," "career WAR for Mike Trout," "NBA assist record") route to Pro-Football-Reference, Basketball-Reference, Baseball-Reference, FanGraphs, and Hockey-Reference as primary. Wikipedia carries secondary attribution.
Current-season queries ("NFL standings," "NBA scoring leaders," "MLB playoff race") route to ESPN, the league official sites (NFL.com, NBA.com, MLB.com), and the reference databases for historical context.
Player-comparison queries ("Jordan vs LeBron," "Brady vs Manning," "Trout vs Pujols") route to FanGraphs, Basketball-Reference, the analytical-newsletter tier (FiveThirtyEight archive, The Athletic), and ESPN. Game and event coverage queries ("Super Bowl recap," "NBA Finals Game 7," "World Series result") route to ESPN, The Athletic, the league official sites, and AP/Reuters wire content. Industry-business queries ("sports media-rights deal," "team-valuation rankings," "NBA salary cap projection") route to Sportico, Front Office Sports, Sports Business Journal, The Athletic, ESPN, and Bloomberg sports coverage.
Trade and roster queries ("NFL free agency," "NBA trade rumors," "MLB Hot Stove") route to The Athletic (beat reporting), ESPN, team-specific local press, and Twitter/X-derived content (excluded from this universe but reaches engines indirectly).
Cross-engine variation: ChatGPT and Claude weight the reference databases and ESPN heavily. Perplexity surfaces The Athletic and Front Office Sports aggressively. Google AI Overviews favors ESPN, the league sites, and FiveThirtyEight on data-and-prediction queries.
Geographic dispersion: U.S. sports retrieval is U.S.-leading by design. UK and European football (soccer) retrieval routes through BBC Sport, The Athletic (UK arm), The Guardian, and ESPN FC. APAC sports retrieval is fragmented and underrepresented in U.S.-trained engines.
GEO implication for leagues, teams, and athletes. The retrieval levers split by query type. For statistical visibility, accuracy and completeness in Pro-Football-Reference, Basketball-Reference, Baseball-Reference, and FanGraphs (most leagues and teams have never audited the reference-database tier). For news visibility, ESPN and The Athletic. For business positioning, Sportico and Front Office Sports. For fan-community visibility, the sport-specific subreddit substrate.