diff --git a/oj/urls.py b/oj/urls.py
index ffe526fb..c626656b 100644
--- a/oj/urls.py
+++ b/oj/urls.py
@@ -9,8 +9,9 @@ urlpatterns = [
     url(r"^api/admin/", include("conf.urls.admin")),
     url(r"^api/", include("problem.urls.oj")),
     url(r"^api/admin/", include("problem.urls.admin")),
-    url(r"^api/admin/", include("contest.urls.admin")),
     url(r"^api/", include("contest.urls.oj")),
+    url(r"^api/admin/", include("contest.urls.admin")),
     url(r"^api/", include("submission.urls.oj")),
+    url(r"^api/admin/", include("submission.urls.admin")),
     url(r"^api/admin/", include("utils.urls")),
 ]
diff --git a/submission/urls/admin.py b/submission/urls/admin.py
index e69de29b..bf86022f 100644
--- a/submission/urls/admin.py
+++ b/submission/urls/admin.py
@@ -0,0 +1,7 @@
+from django.conf.urls import url
+
+from ..views.admin import SubmissionRejudgeAPI
+
+urlpatterns = [
+    url(r"^submission/rejudge?$", SubmissionRejudgeAPI.as_view(), name="submission_rejudge_api"),
+]
diff --git a/submission/views/admin.py b/submission/views/admin.py
index e69de29b..679360b6 100644
--- a/submission/views/admin.py
+++ b/submission/views/admin.py
@@ -0,0 +1,24 @@
+from account.decorators import super_admin_required
+from judge.tasks import judge_task
+# from judge.dispatcher import JudgeDispatcher
+from utils.api import APIView
+from ..models import Submission, JudgeStatus
+
+
+class SubmissionRejudgeAPI(APIView):
+    @super_admin_required
+    def get(self, request):
+        id = request.GET.get("id")
+        if not id:
+            return self.error("Paramater error, id is required")
+        try:
+            submission = Submission.objects.select_related("problem").get(id=id, contest_id__isnull=True)
+        except Submission.DoesNotExist:
+            return self.error("Submission does not exists")
+        submission.result = JudgeStatus.PENDING
+        submission.info = {}
+        submission.statistic_info = {}
+        submission.save()
+
+        judge_task.delay(submission.id, submission.problem.id)
+        return self.success()
diff --git a/submission/views/oj.py b/submission/views/oj.py
index 88a5c272..8514c13c 100644
--- a/submission/views/oj.py
+++ b/submission/views/oj.py
@@ -206,6 +206,6 @@ class SubmissionExistsAPI(APIView):
     def get(self, request):
         if not request.GET.get("problem_id"):
             return self.error("Parameter error, problem_id is required")
-        return self.success(request.user.is_authenticated and
+        return self.success(request.user.is_authenticated() and
                             Submission.objects.filter(problem_id=request.GET["problem_id"],
                                                       user_id=request.user.id).exists())