diff --git a/services/backend/api/v1/competition/schemas.py b/services/backend/api/v1/competition/schemas.py
index c1252c2..9a1116f 100644
--- a/services/backend/api/v1/competition/schemas.py
+++ b/services/backend/api/v1/competition/schemas.py
@@ -11,12 +11,17 @@ class CompetitionOut(ModelSchema):
     state: Literal["not_started", "started", "finished"]
 
     @staticmethod
-    def resolve_state(self, context) -> Literal["not_started", "started", "finished"]:
-        if not (state := State.objects.filter(user=context.get("request").auth, competition=self).first()):
+    def resolve_state(
+        self, context
+    ) -> Literal["not_started", "started", "finished"]:
+        if not (
+            state := State.objects.filter(
+                user=context.get("request").auth, competition=self
+            ).first()
+        ):
             return "not_started"
         return state.state
 
-
     class Meta:
         model = Competition
         exclude = ("participants",)
diff --git a/services/backend/api/v1/router.py b/services/backend/api/v1/router.py
index a9ae8f6..4388666 100644
--- a/services/backend/api/v1/router.py
+++ b/services/backend/api/v1/router.py
@@ -8,9 +8,9 @@ from api.v1.competition.views import router as competition_router
 from api.v1.ping.views import router as ping_router
 from api.v1.review.auth import ReviewerAuth
 from api.v1.review.views import router as review_router
-from api.v1.user.views import router as user_router
 from api.v1.task.views import router as task_router
 from api.v1.team.views import router as team_router
+from api.v1.user.views import router as user_router
 
 router = NinjaAPI(
     title="DataRush API",
diff --git a/services/backend/api/v1/task/schemas.py b/services/backend/api/v1/task/schemas.py
index e5a4046..9546379 100644
--- a/services/backend/api/v1/task/schemas.py
+++ b/services/backend/api/v1/task/schemas.py
@@ -3,19 +3,29 @@ from uuid import UUID
 
 from ninja import ModelSchema, Schema
 
-from apps.task.models import CompetitionTask
+from apps.task.models import CompetitionTask, CompetitionTaskSubmission
 
 
 class TaskOutSchema(ModelSchema):
     class Meta:
         model = CompetitionTask
-        fields = ["id", "competition", "title", "description", "type"]
-
-
-class TaskSubmissionIn(Schema):
-    type: Literal["input", "file", "code"]
-    content: str
+        fields = [
+            "id",
+            "competition",
+            "title",
+            "description",
+            "type",
+            "in_competition_position",
+        ]
 
 
 class TaskSubmissionOut(Schema):
     submission_id: UUID
+
+
+class HistorySubmissionOut(ModelSchema):
+    status: Literal["sent", "checked", "checking"]
+
+    class Meta:
+        model = CompetitionTaskSubmission
+        fields = ("id", "earned_points", "timestamp")
diff --git a/services/backend/api/v1/task/views.py b/services/backend/api/v1/task/views.py
index cc1f9fe..79e9859 100644
--- a/services/backend/api/v1/task/views.py
+++ b/services/backend/api/v1/task/views.py
@@ -2,13 +2,13 @@ from http import HTTPStatus as status
 from uuid import UUID
 
 from django.shortcuts import get_object_or_404
-from ninja import Router
+from ninja import File, Router, UploadedFile
 
 from api.v1.ping.schemas import PingOut
 from api.v1.schemas import ForbiddenError, NotFoundError, UnauthorizedError
 from api.v1.task.schemas import (
+    HistorySubmissionOut,
     TaskOutSchema,
-    TaskSubmissionIn,
     TaskSubmissionOut,
 )
 from apps.competition.models import State
@@ -87,32 +87,56 @@ def get_task(request, competition_id: str, task_id: str) -> TaskOutSchema: ...
     },
 )
 def submit_task(
-    request, competition_id: str, task_id: str, submission: TaskSubmissionIn
-) -> PingOut:
+    request,
+    competition_id: str,
+    task_id: str,
+    content: UploadedFile = File(...),  # TODO: вот это надо переделать
+) -> TaskSubmissionOut:
     user = request.auth
-    competetion = get_object_or_404(Competition, id=competition_id)
+    competition = get_object_or_404(Competition, id=competition_id)
     task = get_object_or_404(
-        CompetitionTask, competetion=competetion, id=task_id
+        CompetitionTask, competition=competition, id=task_id
     )
 
     if task.type == CompetitionTask.CompetitionTaskType.INPUT:
-        CompetitionTaskSubmission.objects.create(
+        submission = CompetitionTaskSubmission.objects.create(
             user=user,
             task=task,
             status=CompetitionTaskSubmission.StatusChoices.CHECKED,
-            result={"correct": submission.content == task.answer_file_path},
+            result={"correct": content == task.answer_file_path},
+            content=content,
         )
     if task.type == CompetitionTask.CompetitionTaskType.REVIEW:
-        CompetitionTaskSubmission.objects.create(
+        submission = CompetitionTaskSubmission.objects.create(
             user=user,
             task=task,
             status=CompetitionTaskSubmission.StatusChoices.SENT,
+            content=content,
         )
     if task.type == CompetitionTask.CompetitionTaskType.CHECKER:
-        CompetitionTaskSubmission.objects.create(
+        submission = CompetitionTaskSubmission.objects.create(
             user=user,
             task=task,
             status=CompetitionTaskSubmission.StatusChoices.CHECKING,
+            content=content,
         )
 
-    return TaskSubmissionOut(id=CompetitionTaskSubmission.id)
+    return TaskSubmissionOut(submission_id=submission.id)
+
+
+@router.get(
+    "competitions/{competition_id}/tasks/{task_id}/history",
+    response={
+        status.OK: list[HistorySubmissionOut],
+        status.UNAUTHORIZED: UnauthorizedError,
+    },
+)
+def get_submissions_history(request, competition_id: UUID, task_id: UUID):
+    task = get_object_or_404(
+        CompetitionTask, competition_id=competition_id, id=task_id
+    )
+    submissions_history = CompetitionTaskSubmission.objects.filter(
+        task=task, user=request.auth
+    )
+
+    return status.OK, submissions_history
diff --git a/services/backend/api/v1/team/schemas.py b/services/backend/api/v1/team/schemas.py
index defafdf..567ca23 100644
--- a/services/backend/api/v1/team/schemas.py
+++ b/services/backend/api/v1/team/schemas.py
@@ -1,4 +1,4 @@
-from ninja import ModelSchema, Schema
+from ninja import ModelSchema
 
 from apps.team.models import Team
 
@@ -6,10 +6,18 @@ from apps.team.models import Team
 class CreateTeamSchema(ModelSchema):
     class Meta:
         model = Team
-        fields = ("name", "members",)
+        fields = (
+            "name",
+            "members",
+        )
 
 
 class TeamSchemaOut(ModelSchema):
     class Meta:
         model = Team
-        fields = ("id", "name", "owner", "members", )
+        fields = (
+            "id",
+            "name",
+            "owner",
+            "members",
+        )
diff --git a/services/backend/api/v1/team/views.py b/services/backend/api/v1/team/views.py
index 9b13f81..178992b 100644
--- a/services/backend/api/v1/team/views.py
+++ b/services/backend/api/v1/team/views.py
@@ -1,12 +1,11 @@
-from http import HTTPStatus as status
 from uuid import UUID
 
 from django.shortcuts import get_object_or_404
 from ninja import Router
 
+from api.v1.schemas import BadRequestError, NotFoundError, UnauthorizedError
+from api.v1.team.schemas import CreateTeamSchema, TeamSchemaOut
 from apps.team.models import Team
-from api.v1.team.schemas import TeamSchemaOut, CreateTeamSchema
-from api.v1.schemas import UnauthorizedError, BadRequestError, NotFoundError
 
 router = Router()
 
@@ -18,7 +17,7 @@ router = Router()
         400: BadRequestError,
         401: UnauthorizedError,
     },
-    description="Create team. Note: members array must have team members uuid, default can be empty"
+    description="Create team. Note: members array must have team members uuid, default can be empty",
 )
 def create_team(request, team_data: CreateTeamSchema) -> (int, TeamSchemaOut):
     team = Team(name=team_data.name, owner=request.auth)
@@ -33,7 +32,7 @@ def create_team(request, team_data: CreateTeamSchema) -> (int, TeamSchemaOut):
         200: TeamSchemaOut,
         401: UnauthorizedError,
         404: NotFoundError,
-    }
+    },
 )
 def get_team(request, team_id: UUID) -> (int, TeamSchemaOut):
     return get_object_or_404(Team, pk=team_id)
diff --git a/services/backend/apps/competition/migrations/0001_initial.py b/services/backend/apps/competition/migrations/0001_initial.py
index d2222af..7a7cdfe 100644
--- a/services/backend/apps/competition/migrations/0001_initial.py
+++ b/services/backend/apps/competition/migrations/0001_initial.py
@@ -1,4 +1,4 @@
-# Generated by Django 5.1.6 on 2025-03-01 23:48
+# Generated by Django 5.1.6 on 2025-03-02 00:16
 
 import apps.competition.models
 import datetime
@@ -38,7 +38,7 @@ class Migration(migrations.Migration):
             name='State',
             fields=[
                 ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
-                ('state', models.CharField(choices=[('not_started', 'Not Started'), ('started', 'Started'), ('finished', 'Finished')], max_length=11)),
+                ('state', models.CharField(choices=[('not_started', 'Not Started'), ('started', 'Started'), ('finished', 'Finished')], default='not_started', max_length=11)),
                 ('changed_at', models.DateTimeField(default=datetime.datetime.now)),
                 ('competition', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='competition.competition')),
                 ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='user.user')),
diff --git a/services/backend/apps/competition/models.py b/services/backend/apps/competition/models.py
index 9c37c79..3cb9b5b 100644
--- a/services/backend/apps/competition/models.py
+++ b/services/backend/apps/competition/models.py
@@ -10,6 +10,7 @@ class Competition(BaseModel):
     class CompetitionType(models.TextChoices):
         EDU = "edu", "Образовательный"
         COMPETITIVE = "competitive", "Соревновательный"
+
     class CompetitionParticipationType(models.TextChoices):
         SOLO = "solo", "Индивидуальный"
 
@@ -60,5 +61,9 @@ class State(BaseModel):
 
     user = models.ForeignKey(User, on_delete=models.CASCADE)
     competition = models.ForeignKey(Competition, on_delete=models.CASCADE)
-    state = models.CharField(choices=StateChoices.choices, max_length=11, default=StateChoices.NOT_STARTED.value)
+    state = models.CharField(
+        choices=StateChoices.choices,
+        max_length=11,
+        default=StateChoices.NOT_STARTED.value,
+    )
     changed_at = models.DateTimeField(default=datetime.now)
diff --git a/services/backend/apps/competition/tests.py b/services/backend/apps/competition/tests.py
index 3884d70..37dfcc0 100644
--- a/services/backend/apps/competition/tests.py
+++ b/services/backend/apps/competition/tests.py
@@ -103,7 +103,7 @@ class CompetitionsEndpointTests(TestCase):
         self.user = User.objects.create(
             email="user@example.com",
             password=make_password("password123"),
-            username="t1wk4"
+            username="t1wk4",
         )
 
         resp = self.client.post(
@@ -121,7 +121,8 @@ class CompetitionsEndpointTests(TestCase):
                 title=f"Competition {i}",
                 description=f"Description {i}",
                 type=(
-                    Competition.CompetitionType.EDU if i % 2 == 0
+                    Competition.CompetitionType.EDU
+                    if i % 2 == 0
                     else Competition.CompetitionType.COMPETITIVE
                 ),
                 participation_type=Competition.CompetitionParticipationType.SOLO,
@@ -132,9 +133,7 @@ class CompetitionsEndpointTests(TestCase):
                 competition.participants.add(self.user)
             self.competitions.append(competition)
 
-        self.valid_headers = {
-            "HTTP_AUTHORIZATION": f"Bearer {token}"
-        }
+        self.valid_headers = {"HTTP_AUTHORIZATION": f"Bearer {token}"}
 
     def get_url(self, params=None):
         base_url = "/api/v1/competitions"
@@ -142,8 +141,7 @@ class CompetitionsEndpointTests(TestCase):
 
     def test_get_participating_competitions(self):
         response = self.client.get(
-            self.get_url("is_participating=true"),
-            **self.valid_headers
+            self.get_url("is_participating=true"), **self.valid_headers
         )
 
         self.assertEqual(response.status_code, 200)
@@ -151,13 +149,12 @@ class CompetitionsEndpointTests(TestCase):
         self.assertEqual(len(data), 2)
         self.assertEqual(
             {item["id"] for item in data},
-            {str(self.competitions[0].id), str(self.competitions[1].id)}
+            {str(self.competitions[0].id), str(self.competitions[1].id)},
         )
 
     def test_competition_type_values(self):
         response = self.client.get(
-            self.get_url("is_participating=true"),
-            **self.valid_headers
+            self.get_url("is_participating=true"), **self.valid_headers
         )
 
         for item in response.json():
@@ -165,20 +162,15 @@ class CompetitionsEndpointTests(TestCase):
 
     def test_participation_type_values(self):
         response = self.client.get(
-            self.get_url("is_participating=false"),
-            **self.valid_headers
+            self.get_url("is_participating=false"), **self.valid_headers
         )
 
         types = [item["participation_type"] for item in response.json()]
-        self.assertCountEqual(
-            types,
-            ["solo", "solo", "solo"]
-        )
+        self.assertCountEqual(types, ["solo", "solo", "solo"])
 
     def test_datetime_formatting(self):
         response = self.client.get(
-            self.get_url("is_participating=true"),
-            **self.valid_headers
+            self.get_url("is_participating=true"), **self.valid_headers
         )
 
         for item in response.json():
@@ -195,8 +187,7 @@ class CompetitionsEndpointTests(TestCase):
 
     def test_competition_metadata(self):
         response = self.client.get(
-            self.get_url("is_participating=true"),
-            **self.valid_headers
+            self.get_url("is_participating=true"), **self.valid_headers
         )
 
         item = response.json()[0]
@@ -207,8 +198,7 @@ class CompetitionsEndpointTests(TestCase):
 
     def test_verbose_name_consistency(self):
         response = self.client.get(
-            self.get_url("is_participating=true"),
-            **self.valid_headers
+            self.get_url("is_participating=true"), **self.valid_headers
         )
 
         item = response.json()[0]
@@ -220,16 +210,16 @@ class CompetitionsEndpointTests(TestCase):
             title="No Dates Competition",
             description="Test competition",
             type=Competition.CompetitionType.EDU,
-            participation_type=Competition.CompetitionParticipationType.SOLO
+            participation_type=Competition.CompetitionParticipationType.SOLO,
         )
 
         response = self.client.get(
-            self.get_url("is_participating=false"),
-            **self.valid_headers
+            self.get_url("is_participating=false"), **self.valid_headers
         )
 
         test_item = next(
-            item for item in response.json()
+            item
+            for item in response.json()
             if item["id"] == str(competition.id)
         )
         self.assertIsNone(test_item["start_date"])
@@ -237,8 +227,7 @@ class CompetitionsEndpointTests(TestCase):
 
     def test_participation_status_filtering(self):
         response = self.client.get(
-            self.get_url("is_participating=false"),
-            **self.valid_headers
+            self.get_url("is_participating=false"), **self.valid_headers
         )
 
         data = response.json()
diff --git a/services/backend/apps/core/management/commands/generate_data.py b/services/backend/apps/core/management/commands/generate_data.py
index b6eaf20..bc3b9de 100644
--- a/services/backend/apps/core/management/commands/generate_data.py
+++ b/services/backend/apps/core/management/commands/generate_data.py
@@ -73,7 +73,9 @@ class Command(BaseCommand):
                 description=description,
                 start_date=start_date,
                 end_date=end_date,
-                type=random.choice(["edu", "competitive"]),  # assuming only one type for now
+                type=random.choice(
+                    ["edu", "competitive"]
+                ),  # assuming only one type for now
                 participation_type="solo",
             )
             # Add random participants
diff --git a/services/backend/apps/review/migrations/0001_initial.py b/services/backend/apps/review/migrations/0001_initial.py
index d0d2eeb..c12c510 100644
--- a/services/backend/apps/review/migrations/0001_initial.py
+++ b/services/backend/apps/review/migrations/0001_initial.py
@@ -1,4 +1,4 @@
-# Generated by Django 5.1.6 on 2025-03-01 23:48
+# Generated by Django 5.1.6 on 2025-03-02 00:16
 
 import django.db.models.deletion
 import uuid
diff --git a/services/backend/apps/task/migrations/0001_initial.py b/services/backend/apps/task/migrations/0001_initial.py
index 9060ff3..b1a0a2e 100644
--- a/services/backend/apps/task/migrations/0001_initial.py
+++ b/services/backend/apps/task/migrations/0001_initial.py
@@ -1,4 +1,4 @@
-# Generated by Django 5.1.6 on 2025-03-01 23:48
+# Generated by Django 5.1.6 on 2025-03-02 00:16
 
 import apps.task.models
 import django.db.models.deletion
@@ -21,6 +21,7 @@ class Migration(migrations.Migration):
             name='CompetitionTask',
             fields=[
                 ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('in_competition_position', models.PositiveSmallIntegerField(blank=True, null=True)),
                 ('title', models.CharField(max_length=50, verbose_name='заголовок')),
                 ('description', tinymce.models.HTMLField(max_length=300, verbose_name='описание')),
                 ('max_attempts', models.PositiveSmallIntegerField(blank=True, null=True)),
@@ -57,7 +58,7 @@ class Migration(migrations.Migration):
                 ('content', models.FileField(upload_to=apps.task.models.CompetitionTaskSubmission.submission_content_upload_to)),
                 ('stdout', models.FileField(blank=True, null=True, upload_to=apps.task.models.CompetitionTaskSubmission.submission_stdout_upload_to)),
                 ('result', models.JSONField(blank=True, default=None, null=True)),
-                ('earned_points', models.IntegerField()),
+                ('earned_points', models.IntegerField(blank=True, null=True)),
                 ('reviewed_at', models.DateTimeField(blank=True, null=True)),
                 ('timestamp', models.DateTimeField(auto_now_add=True)),
                 ('task', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='task.competitiontask')),
diff --git a/services/backend/apps/task/models.py b/services/backend/apps/task/models.py
index 83bcfc3..66d4ca3 100644
--- a/services/backend/apps/task/models.py
+++ b/services/backend/apps/task/models.py
@@ -18,6 +18,9 @@ class CompetitionTask(BaseModel):
     def answer_file_upload_to(instance, filename) -> str:
         return f"/tasks/{instance.id}/answer/{uuid4()}/filename"
 
+    in_competition_position = models.PositiveSmallIntegerField(
+        null=True, blank=True
+    )
     competition = models.ForeignKey(Competition, on_delete=models.CASCADE)
     title = models.CharField(verbose_name="заголовок", max_length=50)
     description = HTMLField(verbose_name="описание", max_length=300)
@@ -109,7 +112,7 @@ class CompetitionTaskSubmission(BaseModel):
     # - code: {"correct": boolean}
     result = models.JSONField(default=None, null=True, blank=True)
     # just more readable result representation, maybe will be calcuated somehow more complex depends on criteria
-    earned_points = models.IntegerField()
+    earned_points = models.IntegerField(null=True, blank=True)
 
     reviewed_at = models.DateTimeField(null=True, blank=True)
     timestamp = models.DateTimeField(auto_now_add=True)
diff --git a/services/backend/apps/team/admin.py b/services/backend/apps/team/admin.py
index 764c42e..37cb70e 100644
--- a/services/backend/apps/team/admin.py
+++ b/services/backend/apps/team/admin.py
@@ -6,4 +6,8 @@ from apps.team.models import Team
 @admin.register(Team)
 class TeamAdmin(admin.ModelAdmin):
     list_display = ("name", "owner")
-    search_fields = ("name", "owner", "members",)
+    search_fields = (
+        "name",
+        "owner",
+        "members",
+    )
diff --git a/services/backend/apps/team/apps.py b/services/backend/apps/team/apps.py
index 5a9c7c0..47024a6 100644
--- a/services/backend/apps/team/apps.py
+++ b/services/backend/apps/team/apps.py
@@ -2,6 +2,6 @@ from django.apps import AppConfig
 
 
 class TeamConfig(AppConfig):
-    default_auto_field = 'django.db.models.BigAutoField'
-    name = 'apps.team'
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "apps.team"
     verbose_name = "Команды"
diff --git a/services/backend/apps/team/migrations/0001_initial.py b/services/backend/apps/team/migrations/0001_initial.py
index 70b13e9..81d686b 100644
--- a/services/backend/apps/team/migrations/0001_initial.py
+++ b/services/backend/apps/team/migrations/0001_initial.py
@@ -1,4 +1,4 @@
-# Generated by Django 5.1.6 on 2025-03-01 23:48
+# Generated by Django 5.1.6 on 2025-03-02 00:16
 
 import django.db.models.deletion
 import uuid
diff --git a/services/backend/apps/team/models.py b/services/backend/apps/team/models.py
index 9cedc3c..8dd5b0c 100644
--- a/services/backend/apps/team/models.py
+++ b/services/backend/apps/team/models.py
@@ -1,4 +1,3 @@
-from uuid import uuid4
 
 from django.db import models
 
@@ -8,10 +7,12 @@ from apps.user.models import User
 
 class Team(BaseModel):
     name = models.CharField(max_length=50, verbose_name="название")
-    owner = models.ForeignKey(User, on_delete=models.CASCADE,
-                              verbose_name="владелец")
-    members = models.ManyToManyField(User, related_name="team_members",
-                                     verbose_name="участники")
+    owner = models.ForeignKey(
+        User, on_delete=models.CASCADE, verbose_name="владелец"
+    )
+    members = models.ManyToManyField(
+        User, related_name="team_members", verbose_name="участники"
+    )
 
     def __str__(self):
         return self.name
@@ -22,8 +23,9 @@ class Team(BaseModel):
 
 
 class TeamInvite(BaseModel):
-    team = models.ForeignKey(Team, on_delete=models.CASCADE,
-                             verbose_name="команда")
+    team = models.ForeignKey(
+        Team, on_delete=models.CASCADE, verbose_name="команда"
+    )
     link = models.UUIDField(verbose_name="инвайт")
 
     class Meta:
diff --git a/services/backend/apps/user/migrations/0001_initial.py b/services/backend/apps/user/migrations/0001_initial.py
index b4b83de..12a0407 100644
--- a/services/backend/apps/user/migrations/0001_initial.py
+++ b/services/backend/apps/user/migrations/0001_initial.py
@@ -1,4 +1,4 @@
-# Generated by Django 5.1.6 on 2025-03-01 23:48
+# Generated by Django 5.1.6 on 2025-03-02 00:16
 
 import uuid
 from django.db import migrations, models