diff --git a/symposion/schedule/models.py b/symposion/schedule/models.py
index 14ea87e47f5f716e651e27c62d07c580d43b4b61..5be16eb872e9428cde7cb1ff83464e27f762e983 100644
--- a/symposion/schedule/models.py
+++ b/symposion/schedule/models.py
@@ -1,6 +1,7 @@
 import datetime
 
 from django.core.exceptions import ObjectDoesNotExist
+from django.contrib.auth.models import User
 from django.db import models
 
 from markitup.fields import MarkupField
@@ -180,3 +181,62 @@ class Presentation(models.Model):
 
     class Meta:
         ordering = ["slot"]
+
+
+class Session(models.Model):
+
+    day = models.ForeignKey(Day, related_name="sessions")
+    slots = models.ManyToManyField(Slot, related_name="sessions")
+
+    def sorted_slots(self):
+        return self.slots.order_by("start")
+
+    def start(self):
+        slots = self.sorted_slots()
+        if slots:
+            return list(slots)[0].start
+        else:
+            return None
+
+    def end(self):
+        slots = self.sorted_slots()
+        if slots:
+            return list(slots)[-1].end
+        else:
+            return None
+
+    def __unicode__(self):
+        start = self.start()
+        end = self.end()
+        if start and end:
+            return u"%s: %s - %s" % (
+                self.day.date.strftime("%a"),
+                start.strftime("%X"),
+                end.strftime("%X")
+            )
+        return u""
+
+
+class SessionRole(models.Model):
+
+    SESSION_ROLE_CHAIR = 1
+    SESSION_ROLE_RUNNER = 2
+
+    SESSION_ROLE_TYPES = [
+        (SESSION_ROLE_CHAIR, "Session Chair"),
+        (SESSION_ROLE_RUNNER, "Session Runner"),
+    ]
+
+    session = models.ForeignKey(Session)
+    user = models.ForeignKey(User)
+    role = models.IntegerField(choices=SESSION_ROLE_TYPES)
+    status = models.NullBooleanField()
+
+    submitted = models.DateTimeField(default=datetime.datetime.now)
+
+    class Meta:
+        unique_together = [("session", "user", "role")]
+
+    def __unicode__(self):
+        return u"%s %s: %s" % (self.user, self.session,
+                               self.SESSION_ROLE_TYPES[self.role - 1][1])