# \*/distance and locations

### Request

**URL** `https://racemap.com/api/data/v1/:eventId/distance`\
**Method** GET

**Live sample** <https://racemap.com/api/data/v1/66bf4318d1c783279d183dd3/distance>\
Corresponding map <https://racemap.com/player/100KmDuathlon2018_API-live-sample>

#### Optional query with `deviceId`

* The `deviceId` of a chosen reference device to calculate `gapDistance` and `bearing` to the other devices.&#x20;
* If API is called without a `deviceId` then `gapDistance` and `bearing` is calculated for the first device in the list.&#x20;
* Sample [https://racemap.com/api/data/v1/66bf4318d1c783279d183dd3/distance<mark style="background-color:red;">**?**</mark>**deviceId=66bf4318d1c783279d183e3d**](https://racemap.com/api/data/v1/66bf4318d1c783279d183dd3/distance?deviceId=66bf4318d1c783279d183e3d)

### Response

#### Event object

| Field       | Description \[unit]           | Sample                            |
| ----------- | ----------------------------- | --------------------------------- |
| `name`      | Name of event                 | `"Sample live \| 100km Duathlon"` |
| `location`  | Location                      | `"🇩🇪 Dresden"`                  |
| `startTime` | Start time in UTC             | `"2022-03-09T07:00:03.201Z"`      |
| `endTime`   | End time in UTC               | `"2022-03-09T14:59:38.201Z"`      |
| `starters`  | Array for participant objects |                                   |

#### Participant object

| Field         | Description \[unit]                                                                                                                                                                                                                     | Sample                                                                                                 |
| ------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------ |
| `id`          | Unique Racemap ID of participant                                                                                                                                                                                                        | `"61a2122f181c0a6c4bb5376e"`                                                                           |
| `importId`    | User-defined ID with imported participant data, [Generic API](/api-import-and-export-data/import-basics/metadata-api.md) (`importId`) or [RACE\|RESULT API](/api-import-and-export-data/import-basics/metadata-import-via-rr.md) (`Id`) | <p><code>"UniqueImportId\_2"</code> or <code>"null"</code><br>if no importId exists</p>                |
| `startNumber` | Bib number                                                                                                                                                                                                                              | `"2"`                                                                                                  |
| `name`        | Name                                                                                                                                                                                                                                    | `"CLV Megware"`                                                                                        |
| `current`     | Object for real-time data                                                                                                                                                                                                               | <p><code>null</code> </p><p>if no locations within <code>startTime</code> and <code>endTime</code></p> |

#### Current object

The `current`-object provides the latest data

| Field         | Description \[unit]                                                                                  | Sample                                          |
| ------------- | ---------------------------------------------------------------------------------------------------- | ----------------------------------------------- |
| `time`        | Timestamp in UTC when device recorded latest geolocation                                             | `"2022-03-09T13:23:15.000Z"`                    |
| `lat`         | Latitude                                                                                             | `51.04229`                                      |
| `lng`         | Longitude                                                                                            | `13.63867`                                      |
| `elv`         | Elevation                                                                                            | `63`                                            |
| `gapDistance` | Distance \[m] between latest locations of device and reference device                                | `679.80` or `0` for the reference device        |
| `bearing`     | Angle \[°] line between latest locations of device and reference device and line from south to north | `-76.372782293` or `0` for the reference device |

![](/files/QdhxJlgIhnIh4ArxawgQ)

#### Sample response

{% code expandable="true" %}

```javascript
{
  "name": "Sample repeat | 100km Duathlon ",
  "location": "🇩🇪 Dresden",
  "startTime": "2022-01-17T07:00:02.881Z",
  "endTime": "2022-01-17T15:00:02.881Z",
  "starters": [
    {
      "id": "61a2122f181c0a0ff7b53765",
      "importId": "UniqueImportId_1",
      "startNumber": "001",
      "name": "🔥 Flaming 🔥 Sideburns 🔥",
      "current": {
        "time": "2022-01-17T12:13:30.000Z",
        "lat": 51.10966,
        "lng": 13.71298,
        "gapDistance": 0,
        "bearing": 0
      }
    },
    {
      "id": "61a2122f181c0a6c4bb5376e",
      "importId": "UniqueImportId_2",
      "startNumber": "002",
      "name": "CLV Megware meets SG Adelsberg",
      "current": {
        "time": "2022-01-17T12:13:30.000Z",
        "lat": 51.11025,
        "lng": 13.7107,
        "gapDistance": 172.16007216012576,
        "bearing": 112.39911045990338
      }
    },
    {
      "id": "61a21230181c0a4ab0b53944",
      "importId": "UniqueImportId_54",
      "startNumber": "21",
      "name": "Kingscupkönige",
      "current": null
    }
  ]
}
```

{% endcode %}


---

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.