season_run_environmentsmlb.season_run_environments

League-wide offensive context per MLB season — average runs per game, league batting line, ERA, and the offensive baseline used to normalize player and team stats across eras.

Full field reference (10 columns) → Data Dictionary Query in GraphQL →

GET/api/v1/mlb/season_run_environmentsList season_run_environments for MLB

Requires one of: season_id — requests satisfying none of these return 400.

Parameters

season_idquerybigintoptional

Filter to a season. Defaults to the current season.

limitqueryintegeroptionaldefault 50

Page size. Defaults to 50; max 5000.

from_idquerybigintoptional

Return rows with id strictly greater than this value; page using the previous response's `next_from_id`. Omit on the first page.

Restores the documented defaults (trial keys only accept the unchanged defaults).

Request

curl -sS --compressed \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  'https://api.stat-api.com/api/v1/mlb/season_run_environments?season_id=2027'

Responses

200season_run_environments rows matching the declared filter set, wrapped in { season_run_environments, limit, next_from_id }. next_from_id is the last row's id on a full page — pass it back via ?from_id= to walk the full result; null marks the terminal page.application/jsonshow example ▸

400No declared filter set was satisfied — response body matches MissingRequiredFiltersError; pick one combo from the accepted-sets hint and resend.application/json

Response Schema(10 fields)show schema ▸

Field	Type	References	Description
idkey	bigint	—	Primary Key
season_id	bigint		— e.g. 2021
batting_average_on_balls_in_play	decimal	—	League average BABIP e.g. 0.2930
fip_constant	decimal	—	FIP constant to scale FIP to ERA e.g. 3.1340
home_run_per_fly_ball	decimal	—	League average HR/FB rate e.g. 0.1390
runs_per_out	decimal	—	League average runs per out made e.g. 0.2810
runs_per_plate_appearance	decimal	—	League average runs per plate appearance e.g. 0.1250
strikeout_rate	decimal	—	League average strikeout rate e.g. 0.2440
updated_date	timestamptz	—	— e.g. 2026-04-12T02:04:46.337Z
walk_rate	decimal	—	League average walk rate e.g. 0.0890

GET/api/v1/mlb/season_run_environments/{id}Get a single season_run_environment by id

Parameters

idpathbigintrequired

Primary key (id) of the season_run_environment row.

Restores the documented defaults (trial keys only accept the unchanged defaults).

Request

curl -sS --compressed \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  'https://api.stat-api.com/api/v1/mlb/season_run_environments/{pk_value}'

Responses

200Single season_run_environment row.application/jsonshow example ▸

404Row not found.

Response Schema(10 fields)show schema ▸

Field	Type	References	Description
idkey	bigint	—	Primary Key
season_id	bigint		— e.g. 2021
batting_average_on_balls_in_play	decimal	—	League average BABIP e.g. 0.2930
fip_constant	decimal	—	FIP constant to scale FIP to ERA e.g. 3.1340
home_run_per_fly_ball	decimal	—	League average HR/FB rate e.g. 0.1390
runs_per_out	decimal	—	League average runs per out made e.g. 0.2810
runs_per_plate_appearance	decimal	—	League average runs per plate appearance e.g. 0.1250
strikeout_rate	decimal	—	League average strikeout rate e.g. 0.2440
updated_date	timestamptz	—	— e.g. 2026-04-12T02:04:46.337Z
walk_rate	decimal	—	League average walk rate e.g. 0.0890