Returns the historical odds for an event in your preferred format — json or csv, chosen by the path extension. One HTTP call per event.

Responses carry a strong ETag; send If-None-Match to short-circuit with 304 Not Modified when nothing changed. Range requests are supported with 206 Partial Content — useful for resuming large CSV downloads.

Separately licensed product. Historical odds access is purchased separately from the core API. If your requests return 403 Forbidden, your plan does not include it — speak with your Odditt account representative to add historical odds coverage.