diff --git a/account/models.py b/account/models.py
index cb4ec92..1b8636a 100644
--- a/account/models.py
+++ b/account/models.py
@@ -15,7 +15,10 @@ class UserManager(models.Manager):
 
 
 class User(AbstractBaseUser):
+    # 用户名
     username = models.CharField(max_length=30, unique=True)
+    # 真实姓名
+    real_name = models.CharField(max_length=30, blank=True, null=True)
     admin_group = models.ForeignKey(AdminGroup, null=True, on_delete=models.SET_NULL)
 
     USERNAME_FIELD = 'username'
diff --git a/contest/models.py b/contest/models.py
index aeb9800..1514b79 100644
--- a/contest/models.py
+++ b/contest/models.py
@@ -1,11 +1,18 @@
 # coding=utf-8
 from django.db import models
 
+from account.models import User
 from problem.models import AbstractProblem
 
 
 class Contest(models.Model):
-    pass
+    title = models.CharField(max_length=40)
+    description = models.TextField()
+    is_public = models.BooleanField()
+    password = models.CharField(max_length=30, blank=True, null=True)
+    start_time = models.DateTimeField()
+    end_time = models.DateTimeField()
+    created_by = models.ForeignKey(User)
 
 
 class ContestProblem(AbstractProblem):
diff --git a/problem/models.py b/problem/models.py
index 53f654e..844f4db 100644
--- a/problem/models.py
+++ b/problem/models.py
@@ -26,7 +26,7 @@ class AbstractProblem(models.Model):
     # 最后更新时间
     last_update_time = models.DateTimeField(auto_now=True)
     # 这个题是谁创建的
-    author = models.ForeignKey(User)
+    created_by = models.ForeignKey(User)
     # 来源
     source = models.CharField(max_length=30, blank=True)
     # 时间限制 单位是毫秒