diff --git a/lib/pages/destination/destination_controller.dart b/lib/pages/destination/destination_controller.dart
index 2ea0e5f..6525746 100644
--- a/lib/pages/destination/destination_controller.dart
+++ b/lib/pages/destination/destination_controller.dart
@@ -36,6 +36,7 @@ class DestinationController extends GetxController {
   List<Destination> destinations = <Destination>[].obs;
   double currentLat = 0.0;
   double currentLon = 0.0;
+  DateTime lastGPSCollectedTime = DateTime.now();
 
   static bool gps_push_started = false;
   static bool game_started = false;
@@ -524,9 +525,10 @@ class DestinationController extends GetxController {
 
     try {
       //print("--- 000 ---- $skip_gps----");
-      await Future.delayed(const Duration(milliseconds: 2500));
+      await Future.delayed(const Duration(milliseconds: 3000));
       Position position = await Geolocator.getCurrentPosition(
           desiredAccuracy: LocationAccuracy.bestForNavigation);
+
       currentLat = position.latitude;
       currentLon = position.longitude;
       final la = position.latitude;
@@ -535,7 +537,22 @@ class DestinationController extends GetxController {
       //print("--- gps is ${la}, ${ln}");
 
       //add gps to database
-      await addGPStoDB(la, ln);
+      //check distance to previous point
+      var distance = const Distance();
+      double distanceToDest = distance.as(
+          LengthUnit.Meter,
+          LatLng(position.latitude, position.longitude),
+          LatLng(currentLat, currentLon));
+      Duration difference =
+          lastGPSCollectedTime.difference(DateTime.now()).abs();
+      if (difference.inSeconds >= 10 || distanceToDest >= 10) {
+        print(
+            "^^^^^^^^ GPS data collected ${DateFormat('kk:mm:ss \n EEE d MMM').format(DateTime.now())}, ^^^ ${position.latitude}, ${position.longitude}");
+
+        await addGPStoDB(la, ln);
+        lastGPSCollectedTime = DateTime.now();
+      }
+
       // GpsDatabaseHelper db = GpsDatabaseHelper.instance;
       // final team_name = indexController.currentUser[0]["user"]['team_name'];
       // final event_code = indexController.currentUser[0]["user"]["event_code"];
diff --git a/lib/widgets/bottom_sheet_new.dart b/lib/widgets/bottom_sheet_new.dart
index b405bbe..8689381 100644
--- a/lib/widgets/bottom_sheet_new.dart
+++ b/lib/widgets/bottom_sheet_new.dart
@@ -498,6 +498,8 @@ class BottomSheetNew extends GetView<BottomSheetController> {
                         // ),
 
                         destinationController.rogainingCounted.value == true &&
+                                destinationController.distanceToStart() <=
+                                    500 &&
                                 destination.cp == -1
                             ? ElevatedButton(
                                 onPressed: () async {
@@ -604,57 +606,61 @@ class BottomSheetNew extends GetView<BottomSheetController> {
                         ),
 
                         // forced start / checkin
-                        Obx(() => ElevatedButton(
-                            style: ElevatedButton.styleFrom(
-                                backgroundColor:
-                                    Theme.of(context).colorScheme.secondary),
-                            onPressed: () async {
-                              //print("~~~~ manual checkin button ~~~~");
-                              if (destination.cp == -1 &&
-                                  destinationController.isInRog.value ==
-                                      false &&
-                                  destinationController
-                                          .rogainingCounted.value ==
-                                      false) {
-                                destinationController.isInRog.value = true;
-                                destinationController.addToRogaining(
-                                    destinationController.currentLat,
-                                    destinationController.currentLon,
-                                    destination.location_id!);
-                                saveGameState();
-                                ExternalService()
-                                    .startRogaining()
-                                    .then((value) => Get.back());
-                              } else {
-                                if (destination.cp == -1) {
-                                  return;
-                                }
-                                Get.back();
-                                await destinationController
-                                    .callforCheckin(destination);
-                              }
-                            },
-                            child: Text(
-                                destination.cp == -1 &&
-                                        destinationController.isInRog.value ==
-                                            false &&
-                                        destinationController
-                                                .rogainingCounted.value ==
-                                            false
-                                    ? "ロゲ開始"
-                                    : destinationController.isInRog.value ==
-                                                true &&
-                                            destination.cp == -1
-                                        ? "ゲーム中"
-                                        : isAlreadyCheckedIn == true
-                                            ? "ゲーム中"
-                                            : "チェックイン",
-                                style: TextStyle(
-                                    color: Theme.of(context)
+                        distanceToDest <=
+                                destinationController
+                                    .getForcedChckinDistance(destination)
+                            ? Obx(() => ElevatedButton(
+                                style: ElevatedButton.styleFrom(
+                                    backgroundColor: Theme.of(context)
                                         .colorScheme
-                                        .onSecondary))))
-                        // ElevatedButton(
-                        //     onPressed: () {}, child: const Text("ゲーム中")),
+                                        .secondary),
+                                onPressed: () async {
+                                  //print("~~~~ manual checkin button ~~~~");
+                                  if (destination.cp == -1 &&
+                                      destinationController.isInRog.value ==
+                                          false &&
+                                      destinationController
+                                              .rogainingCounted.value ==
+                                          false) {
+                                    destinationController.isInRog.value = true;
+                                    destinationController.addToRogaining(
+                                        destinationController.currentLat,
+                                        destinationController.currentLon,
+                                        destination.location_id!);
+                                    saveGameState();
+                                    ExternalService()
+                                        .startRogaining()
+                                        .then((value) => Get.back());
+                                  } else {
+                                    if (destination.cp == -1) {
+                                      return;
+                                    }
+                                    Get.back();
+                                    await destinationController
+                                        .callforCheckin(destination);
+                                  }
+                                },
+                                child: Text(
+                                    destination.cp == -1 &&
+                                            destinationController
+                                                    .isInRog.value ==
+                                                false &&
+                                            destinationController
+                                                    .rogainingCounted.value ==
+                                                false
+                                        ? "ロゲ開始"
+                                        : destinationController.isInRog.value ==
+                                                    true &&
+                                                destination.cp == -1
+                                            ? "ゲーム中"
+                                            : isAlreadyCheckedIn == true
+                                                ? "ゲーム中"
+                                                : "チェックイン",
+                                    style: TextStyle(
+                                        color: Theme.of(context)
+                                            .colorScheme
+                                            .onSecondary))))
+                            : Container(),
                       ],
                     ),
                     Row(