diff --git a/pt/views.py b/pt/views.py
index b360bdc..28d2950 100644
--- a/pt/views.py
+++ b/pt/views.py
@@ -15,11 +15,15 @@ def compare(request):
     if "left" not in request.session:
         left_pic = random_pic()
         request.session["left"] = left_pic.id
+        request.session["left_count"] = 0
     if "right" not in request.session:
         right_pic = random_pic()
         request.session["right"] = right_pic.id
+        request.session["right_count"] = 0
     left_pic = models.Picture.objects.get(id=request.session["left"])
     right_pic = models.Picture.objects.get(id=request.session["right"])
+    request.session["left_count"] += 1
+    request.session["right_count"] += 1
     context = {
         "left": left_pic,
         "right": right_pic,
@@ -48,6 +52,9 @@ def left_wins(request):
     right.elo -= adjust
     right.save()
     log.info("after: left=%f, right=%f", left.elo, right.elo)
+    log.info("counts: left=%d, right=%d", request.session["left_count"], request.session["right_count"])
+    if request.session["left_count"] >= 5:
+        del request.session["left"]
     del request.session["right"]
 
     return HttpResponseRedirect(reverse('compare'))
@@ -65,6 +72,9 @@ def right_wins(request):
     right.elo += adjust
     right.save()
     log.info("after: left=%f, right=%f", left.elo, right.elo)
+    log.info("counts: left=%d, right=%d", request.session["left_count"], request.session["right_count"])
+    if request.session["right_count"] >= 5:
+        del request.session["right"]
     del request.session["left"]
 
     return HttpResponseRedirect(reverse('compare'))