diff --git a/common/lib/xmodule/xmodule/foldit_module.py b/common/lib/xmodule/xmodule/foldit_module.py
index ea16fee7f1..bfe921a068 100644
--- a/common/lib/xmodule/xmodule/foldit_module.py
+++ b/common/lib/xmodule/xmodule/foldit_module.py
@@ -66,6 +66,14 @@ class FolditModule(XModule):
             PuzzleComplete.completed_puzzles(self.system.anonymous_student_id),
             key=lambda d: (d['set'], d['subset']))
 
+    def puzzle_leaders(self, n=10):
+        """
+        Returns a list of n pairs (user, score) corresponding to the top
+        scores; the pairs are in descending order of score.
+        """
+        from foldit.models import Score
+
+        return [(e['username'], e['total_score']) for e in Score.get_tops_n(10)]
 
     def get_html(self):
         """
@@ -80,6 +88,7 @@ class FolditModule(XModule):
             'success': self.is_complete(),
             'goal_level': goal_level,
             'completed': self.completed_puzzles(),
+            'top_scores': self.puzzle_leaders(),
             }
 
         return self.system.render_template('foldit.html', context)
@@ -97,6 +106,7 @@ class FolditModule(XModule):
         return 1
 
 
+
 class FolditDescriptor(XmlDescriptor, EditingDescriptor):
     """
     Module for adding open ended response questions to courses
diff --git a/lms/djangoapps/foldit/models.py b/lms/djangoapps/foldit/models.py
index 6ea180ff2c..3202402e52 100644
--- a/lms/djangoapps/foldit/models.py
+++ b/lms/djangoapps/foldit/models.py
@@ -26,17 +26,19 @@ class Score(models.Model):
     created = models.DateTimeField(auto_now_add=True)
 
     @staticmethod
-    def display_score(score):
+    def display_score(score, sum_of=1):
         """
         Argument:
-            score (float), as stored in the DB
+            score (float), as stored in the DB (i.e., "rosetta score")
+            sum_of (int): if this score is the sum of scores of individual
+               problems, how many elements are in that sum
 
         Returns:
             score (float), as displayed to the user in the game and in the leaderboard
         """
-        # TODO: put in correct formula
-        return -score
+        return (-score) * 10 + 8000 * sum_of
 
+    # TODO: delete this, incorporate it in get_tops_n
     @staticmethod
     def get_top_n(puzzle_id, n):
         """
@@ -52,9 +54,33 @@ class Score(models.Model):
                    score: 8500}, ...]
         """
         scores = Score.objects.filter(puzzle_id=puzzle_id).order_by('-best_score')[:n]
-        return [{'username': s.user.username, 'score': display_score(s.best_score)}
+        return [{'username': s.user.username, 'score': Score.display_score(s.best_score)}
                 for s in scores]
 
+    @staticmethod
+    def get_tops_n(n, puzzles=['994559']):
+        """
+        Arguments:
+            puzzles: a list of puzzle ids that we will use. If not specified,
+            defaults to puzzle used in 7012x.
+            n (int): number of top scores to return
+
+
+        Returns:
+            The top n sum of scores for puzzles in <puzzles>. Output is a list
+            of disctionaries, sorted by display_score:
+                [ {username: 'a_user',
+                   score: 12000} ...]
+        """
+        scores = Score.objects.filter(puzzle_id__in=puzzles).annotate(
+                    total_score=models.Sum('best_score')).order_by(
+                        '-total_score')[:n]
+        num = len(puzzles)
+
+        return [{'username': s.user.username,
+                 'total_score': Score.display_score(s.total_score, num)}
+                 for s in scores]
+
 
 class PuzzleComplete(models.Model):
     """
diff --git a/lms/djangoapps/foldit/views.py b/lms/djangoapps/foldit/views.py
index 8bd3684c04..8b284704d6 100644
--- a/lms/djangoapps/foldit/views.py
+++ b/lms/djangoapps/foldit/views.py
@@ -10,6 +10,8 @@ from django.views.decorators.csrf import csrf_exempt
 from foldit.models import Score, PuzzleComplete
 from student.models import unique_id_for_user
 
+import re
+
 log = logging.getLogger(__name__)
 
 
@@ -38,6 +40,13 @@ def foldit_ops(request):
                      "user %s, scores json %r, verify %r",
                      request.user, puzzle_scores_json, pz_verify_json)
         else:
+            # This is needed because we are not getting valid json - the
+            # value of ScoreType is an unquoted string. Right now regexes are
+            # quoting the string, but ideally the json itself would be fixed.
+            # To allow for fixes without breaking this, the regex should only
+            # match unquoted strings,
+            a = re.compile(r':([a-zA-Z]*),')
+            puzzle_scores_json = re.sub(a, ':"\g<1>",', puzzle_scores_json)
             puzzle_scores = json.loads(puzzle_scores_json)
             responses.append(save_scores(request.user, puzzle_scores))
 
@@ -98,10 +107,22 @@ def save_scores(user, puzzle_scores):
         # BestScore (energy), CurrentScore (Energy), ScoreVersion (int)
 
         puzzle_id = score['PuzzleID']
+        best_score = score['BestScore']
+        current_score = score['CurrentScore']
+        score_version = score['ScoreVersion']
 
         # TODO: save the score
 
         # SetPlayerPuzzleScoreResponse object
+        Score.objects.get_or_create(
+            user=user,
+            unique_user_id=unique_id_for_user(user),
+            puzzle_id=puzzle_id,
+            best_score=best_score,
+            current_score=current_score,
+            score_version=score_version)
+
+        # TODO: get info from db instead?
         score_responses.append({'PuzzleID': puzzle_id,
                                 'Status': 'Success'})
 
diff --git a/lms/templates/foldit.html b/lms/templates/foldit.html
index 2c16ebbfeb..2460e25f8e 100644
--- a/lms/templates/foldit.html
+++ b/lms/templates/foldit.html
@@ -25,4 +25,21 @@ You have not yet gotten to level ${goal_level}.
   % endfor
 </table>
 
-</section>
\ No newline at end of file
+</br>
+ 
+<h3>Puzzle Leaderboard</h3>
+
+<table>
+    <tr>
+        <th>User</th>
+        <th>Score</th>
+    </tr>
+    % for pair in top_scores:
+    <tr>
+        <td>${pair[0]}</td>
+        <td>${pair[1]}</td>
+    </tr>
+    % endfor
+</table>
+
+</section>