Major League Baseball · 19952025 · Wild Card Era (combined)
Near Old Woollam, Missouri
Epicenter map
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Selected-range context
What shaped this epicenter
Established range
Detailed historical data
Epicenter trail detailsHow the point moved as each season joined the selected range
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Champions in this rangeSeason, program, historical home location, and recognition basis
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Transparent by design
How Champography calculates the point
Published dataset 2.4 · wgs84-frechet-v1
Every coordinate shown above is calculated offline, validated, and published in a content-hashed static artifact. The browser reads stored results; it does not approximate historical epicenters while you move the slider.
The epicenter
The equal-season-weight geodesic Frechet mean of the selected World Series champion season points, computed on the WGS84 ellipsoid. Each point is the champion's verified home ballpark for the year they won, not the modern replacement park if the franchise later relocated stadiums.
Season weighting
Every championship season contributes a total weight of exactly 1.0. MLB has never recognized co-champions, so no season splits its vote.
Split titles
Not applicable to MLB: every World Series has a single champion, so no season ever produces a split or multi-point season vote.
Historical ballparks
The champion's home ballpark for the season they won is used, never a World Series game played at a temporary or higher-capacity alternate site. Where a franchise's official home games that postseason were played at a different park than its primary stadium (for example, the 1915-1916 Red Sox playing World Series home games at Braves Field for capacity reasons), the team's actual primary home ballpark for that season is still used as the geographic point, and the alternate-site detail is preserved in claim notes.
The champion policy
The single World Series-winning franchise counts for every season a series was completed. No selector reconciliation is required because MLB has one official champion per completed season.
Place labels
A point inside a municipality is labelled with that municipality, decided by point-in-polygon against Census place boundaries rather than by proximity. GNIS stores a city as a single downtown point, so nearest-point resolution inside a large city found whichever neighbourhood, park or subdivision happened to sit closest, and a point in Lexington resolved to Hollywood, Kentucky. Where boundaries overlap the smallest containing place wins, as the most specific true answer. Outside every boundary the label names the nearest populated place in the official USGS GNIS extract, which includes small and unincorporated communities. GNIS also classes apartment blocks, public-housing projects and neighbourhood tracts as populated places, so where the nearest name is one the Census Bureau does not list, a Census-recognized place in the same state is preferred when it lies within twice the distance or three kilometres further; rural communities the Census Bureau also omits keep their own name rather than being replaced by a larger town miles away. Places GNIS marks as no longer existing are not published while any extant place lies within fifteen miles. GNIS covers the United States only, so a source-controlled Canadian table of 418 populated places supplies Canadian labels, compiled rather than read from an authoritative extract and accurate to about a kilometre. A county is stated only when the nearest place is within 15 km, since the county belongs to the place rather than to the point, and beyond 25 miles a label gives distance and bearing instead of saying 'near'. Boundary geometry is simplified to roughly 220 m, far below the size of any municipality.
Current verified coverage: Champion coverage spans the first modern World Series in 1903 through the latest completed season. 1904 (no series played) and 1994 (strike, no champion) remain on the timeline with zero weight. Every counted row uses a verified season-specific home ballpark coordinate; none use a program-level fallback reference point.
Complete methodologyWeighting, venue policy, locality resolution, precomputation, QA, and limitations.How the math worksWGS84 geodesic mean, split-title construction, range lookup, and trails.Championship erasWhy each preset begins and ends where it does.Search the champions recordInspect every claim, ballpark, recognition basis, and source.