diff --git a/account/api.py b/account/api.py
index 91ef8a1..7c6914d 100644
--- a/account/api.py
+++ b/account/api.py
@@ -7,7 +7,6 @@ from ninja.errors import HttpError
 from .schemas import (
     BatchUsersIn,
     ClassStudentEntry,
-    LeaderboardEntry,
     UserListSchema,
     UserRegistrationSchema,
     UserLoginSchema,
@@ -123,21 +122,6 @@ def toggle_user_is_active(request, id: int):
         raise HttpError(404, "查无此人")
 
 
-@router.get("/leaderboard", response=List[LeaderboardEntry])
-def leaderboard(request):
-    from .models import Profile
-    profiles = (
-        Profile.objects
-        .select_related("user")
-        .filter(total_score__gt=0)
-        .order_by("-total_score")
-    )
-    return [
-        LeaderboardEntry(rank=i + 1, username=p.user.username, total_score=p.total_score)
-        for i, p in enumerate(profiles)
-    ]
-
-
 @router.get("/classes", response=List[str])
 def list_classes(request):
     """返回所有不重复的非空班级名列表，按字典序升序"""
diff --git a/account/migrations/0004_remove_profile.py b/account/migrations/0004_remove_profile.py
new file mode 100644
index 0000000..64195c4
--- /dev/null
+++ b/account/migrations/0004_remove_profile.py
@@ -0,0 +1,16 @@
+# Generated by Django 6.0.1 on 2026-03-18 10:38
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('account', '0003_user_classname'),
+    ]
+
+    operations = [
+        migrations.DeleteModel(
+            name='Profile',
+        ),
+    ]
diff --git a/account/models.py b/account/models.py
index 8e2a344..6b5eb98 100644
--- a/account/models.py
+++ b/account/models.py
@@ -1,9 +1,6 @@
 from django.db import models
 from django.contrib.auth.models import AbstractUser
 
-from django.db.models.signals import post_save
-from django.dispatch import receiver
-
 
 class RoleChoices(models.TextChoices):
     SUPER = "super", "超级管理员"
@@ -51,33 +48,3 @@ class User(AbstractUser):
         verbose_name_plural = verbose_name
 
 
-class Profile(models.Model):
-    user = models.OneToOneField(User, on_delete=models.CASCADE)
-    total_score = models.FloatField(default=0.0)
-
-    def __str__(self):
-        return self.user.username
-
-    def recalculate_total_score(self):
-        from django.db.models import Max, Sum
-        from submission.models import Submission
-        total = (
-            Submission.objects
-            .filter(user=self.user, task__task_type="challenge", score__gt=0)
-            .values("task_id")
-            .annotate(best=Max("score"))
-            .aggregate(total=Sum("best"))["total"]
-        ) or 0.0
-        self.total_score = total
-        self.save(update_fields=["total_score"])
-
-
-@receiver(post_save, sender=User)
-def create_user_profile(sender, instance, created, **kwargs):
-    if created:
-        Profile.objects.create(user=instance)
-
-
-@receiver(post_save, sender=User)
-def save_user_profile(sender, instance, **kwargs):
-    instance.profile.save()
diff --git a/account/schemas.py b/account/schemas.py
index a687b6f..6f827e6 100644
--- a/account/schemas.py
+++ b/account/schemas.py
@@ -48,12 +48,6 @@ class BatchUsersIn(Schema):
     classname: str
 
 
-class LeaderboardEntry(Schema):
-    rank: int
-    username: str
-    total_score: float
-
-
 class ClassStudentEntry(Schema):
     name: str
     username: str
diff --git a/submission/api.py b/submission/api.py
index 5306d0a..bd4b64f 100644
--- a/submission/api.py
+++ b/submission/api.py
@@ -10,7 +10,6 @@ from django.db.models import Count, OuterRef, Q, Subquery, IntegerField
 
 from .schemas import (
     FlagIn,
-    MyScoreOut,
     SubmissionFilter,
     SubmissionIn,
     SubmissionOut,
@@ -123,27 +122,6 @@ def list_submissions(request, filters: SubmissionFilter = Query(...)):
     return submissions
 
 
-@router.get("/my-scores", response=List[MyScoreOut])
-@login_required
-def my_scores(request):
-    seen = {}
-    for s in Submission.objects.filter(
-        user=request.user, task__task_type="challenge"
-    ).order_by("-score").select_related("task"):
-        if s.task_id not in seen:
-            seen[s.task_id] = s
-    return [
-        MyScoreOut(
-            task_id=s.task_id,
-            task_display=s.task.display,
-            task_title=s.task.title,
-            score=s.score,
-            created=s.created.isoformat(),
-        )
-        for s in seen.values()
-    ]
-
-
 
 @router.get("/by-user-task", response=List[SubmissionOut])
 @login_required
diff --git a/submission/models.py b/submission/models.py
index 6fd1a27..70739f9 100644
--- a/submission/models.py
+++ b/submission/models.py
@@ -7,7 +7,7 @@ from django.utils import timezone
 from django.db.models.signals import post_save
 from django.dispatch import receiver  # 导入receiver
 
-from account.models import Profile, RoleChoices, User
+from account.models import RoleChoices, User
 from task.models import Task
 from prompt.models import Conversation
 
@@ -93,8 +93,6 @@ class Submission(TimeStampedModel):
 
     def save(self, *args, **kwargs):
         super().save(*args, **kwargs)
-        # if self.score > 0:
-        #     self.user.profile.update_total_score(self.score)
 
 
 class Rating(models.Model):
@@ -141,4 +139,3 @@ def update_submission_score_on_save(sender, instance, **kwargs):
     当Rating保存时，更新对应的Submission的平均分
     """
     instance.submission.update_score()
-    instance.submission.user.profile.recalculate_total_score()
diff --git a/submission/schemas.py b/submission/schemas.py
index 1f4941d..fceed23 100644
--- a/submission/schemas.py
+++ b/submission/schemas.py
@@ -121,9 +121,3 @@ class FlagIn(Schema):
     flag: Optional[Literal["red", "blue", "green", "yellow"]] = None
 
 
-class MyScoreOut(Schema):
-    task_id: int
-    task_display: int
-    task_title: str
-    score: float
-    created: str