diff --git a/backend/src/gps/dto/location-response.dto.ts b/backend/src/gps/dto/location-response.dto.ts
index 5166548..80a746f 100644
--- a/backend/src/gps/dto/location-response.dto.ts
+++ b/backend/src/gps/dto/location-response.dto.ts
@@ -33,6 +33,7 @@ export class DriverStatsDto {
     averageSpeedMph: number;
     totalTrips: number;
     totalDrivingMinutes: number;
+    distanceMethod?: string; // 'osrm' or 'haversine'
   };
   recentLocations: LocationDataDto[];
 }
diff --git a/frontend/src/types/gps.ts b/frontend/src/types/gps.ts
index 8ccd212..93df4dd 100644
--- a/frontend/src/types/gps.ts
+++ b/frontend/src/types/gps.ts
@@ -106,3 +106,12 @@ export interface MyGpsStatus {
   lastActive?: string;
   message?: string;
 }
+
+export interface LocationHistoryResponse {
+  matched: boolean;
+  coordinates?: [number, number][]; // road-snapped [lat, lng] pairs
+  distance?: number; // road distance in meters
+  duration?: number; // duration in seconds
+  confidence?: number; // 0-1 confidence score
+  rawPositions?: Array<{ latitude: number; longitude: number; speed: number; timestamp: Date }>;
+}