iRacing /data API Schema Documentation

Endpoint: `/data/results/lap_chart_data`

Parameters

Parameter Type Required
subsession_id number
simsession_number number

Response Schema

This field is an array of:

Field Type Optional
ai boolean
car_number string
cust_id integer
display_name string
fastest_lap boolean
flags integer
group_id integer
helmet Helmet
incident boolean
interval integer
interval_units string
lap_events array of string
lap_number integer
lap_position integer
lap_time integer
license_level integer
name string
personal_best_lap boolean
session_start_time null
session_time integer
team_fastest_lap boolean

Generated by irschema v0.3.4


Last Updated: March 24, 2026 at 09:12 PM
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