INDEPENDENT DEVELOPER REFERENCE

How do I match a player across Pick6, DFS and ESPN?

No mapping is supplied. In a bounded NFL check on 2026-11-03, Pick6 entity_id equaled DFS playerDkId for almost every name-matched player, so that join is worth testing. ESPN athlete_id is a separate identity. Build a reviewed mapping using name, team and game date, and flag ambiguous matches.

Editorial review: 2026-11-03 · Not a live coverage report

Identifiers by dataset

Treat the Pick6 to DFS match as an observation, not a contract, and keep checking for mismatches. Do not use data.playerId from DFS for this join: in that same check it did not match.

Dataset	Athlete field	Issued by
Pick6	`entities[].entity_id`	DraftKings source
DFS	`data.playerDkId`, `data.playerId`	DraftKings source
Statistics, context	`athlete_id`	ESPN

Check the recorded data

Related resources

How do ESPN IDs relate to DraftKings IDs here?

ESPN-attributed rows use ESPN event numbers. Native sportsbook and Pick6 retain their DraftKings source IDs.

Data for a player prop model: what is available

Which inputs a prop model can read from this API, which it cannot, and how far player identity joins can be trusted across datasets.

DraftKings DFS contests and salaries API

Explore US-DK sport, contest, slate and draftable observations with selected-slate limits and roster-slot salary semantics.

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