An owner page
The horses and the trainers together are the whole picture.
Documentation / Jockeys & owners
Owner profile
GET
/v1/owners/{owner_id}
Runs, wins and horses.
Available on
Free key
24h – 7d
Live
today + 3 days
Archive
back to 2017
Complete
2017 → upcoming
Complete + Analyst
2017 → upcoming
Send your key in the X-API-Key header, or as
?key= if your tool cannot set one. A date outside your plan's window returns
403 outside_window naming the window, never an empty array.
Parameters
| Name | In | Type | Required | Description |
|---|---|---|---|---|
| owner_id | path | string | yes | Opaque owner identifier, derived from the name. Take it from a search or from any runner. |
Request
curl https://api.apihorseracing.com/v1/owners/ow_35DVPAY \ -H "X-API-Key: $AHR_KEY"
$ch = curl_init('https://api.apihorseracing.com/v1/owners/ow_35DVPAY'); curl_setopt_array($ch, [ CURLOPT_RETURNTRANSFER => true, CURLOPT_HTTPHEADER => ['X-API-Key: ' . getenv('AHR_KEY')], ]); $data = json_decode(curl_exec($ch), true)['data'];
const res = await fetch( 'https://api.apihorseracing.com/v1/owners/ow_35DVPAY', { headers: { 'X-API-Key': process.env.AHR_KEY } } ); const { meta, data } = await res.json();
import os, requests r = requests.get( "https://api.apihorseracing.com/v1/owners/ow_35DVPAY", headers={"X-API-Key": os.environ["AHR_KEY"]}, ).json()
curl https://api.apihorseracing.com/v1/owners/ow_35DVPAY?key=$AHR_KEY
$url = 'https://api.apihorseracing.com/v1/owners/ow_35DVPAY' . '?key=$AHR_KEY'; $data = json_decode(file_get_contents($url), true)['data'];
const res = await fetch( 'https://api.apihorseracing.com/v1/owners/ow_35DVPAY?key=$AHR_KEY' ); const { meta, data } = await res.json();
import os, requests r = requests.get( "https://api.apihorseracing.com/v1/owners/ow_35DVPAY?key=$AHR_KEY", ).json()
Response
200 OK
application/json
harvested 8 days ago
{ "meta": { "request_id": "97aef9b6607a5043", "data_as_of": "2026-09-12T05:10:27+00:00", "plan": "analyst", "window": "2017 → upcoming" }, "data": { "owner_id": "ow_35DVPAY", "name": "John P McManus", "record": { "runs": 9462, "wins": 998, "win_pct": 0.1055, "horses": 807, "first_run": "2017-01-01", "last_run": "2026-09-04" } } }
A real response from /v1/owners/ow_35DVPAY?limit=3,
captured by calling the live API rather than written by hand.
Response fields
Each field is described once and rendered on every endpoint that returns it, so the wording cannot drift between pages.
| Field | Type | What it is |
|---|---|---|
| owner_id | string | Opaque owner identifier, derived from the name because the source publishes none. Two owners sharing a name are one owner here. |
| name | string | Race title as published, sponsor and all. |
| runs | integer | Rides in the slice, priced or not. |
| win_pct | number | Wins over runs. The number everyone quotes and the one that tells you least. |
Errors this endpoint returns
| Code | Status | When |
|---|---|---|
| unauthorized | 401 | No key, or one we do not recognise. Check the header name and that the key has not been rotated from your account page. |
| not_found | 404 | The identifier is well formed but nothing has it. Distinct from invalid_id, which means the identifier itself is wrong. |
| invalid_id | 422 | The prefix does not match the kind of thing the path expects, or the identifier is malformed. A horse id passed where a race is wanted lands here rather than returning the wrong race. |
| rate_limited | 429 | Past your per-minute rate. Retry-After is set, and X-RateLimit-Remaining tells you where you stand on every successful response too. |
| server_error | 500 | Ours, not yours. Every response carries a request_id; quote it and we can find the exact request. |
Run it live
A real request from your browser straight to
api.apihorseracing.com with
your own key. Nothing is proxied and nothing is logged by this page.
Remembered in this browser so you do not paste it on every page. Forget it
What this is for
One owner: runners, wins, places, the trainers used and the horses raced.
The trainers list is the more interesting half. An owner with horses in six yards is a different proposition from one loyal to a single trainer, and it is visible here without any statistics.
Common uses
Tracking a large operation
Big owners run across jurisdictions. The record here spans everything we hold.