- [JSON representation](https://developers.google.com/health/reference/rest/v4beta/DistanceRollupValue#SCHEMA_REPRESENTATION)

Result of the rollup of the user's distance.

| JSON representation |
|---|
| ``` { "millimetersSum": string } ``` |

| Fields ||
|---|---|
| `millimetersSum` | `string (https://developers.google.com/discovery/v1/type-format format)` Sum of the distance in millimeters. |