diff --git a/boatmovers/models.py b/boatmovers/models.py
index ccf22a38..e266f29b 100644
--- a/boatmovers/models.py
+++ b/boatmovers/models.py
@@ -93,13 +93,17 @@ class Race(models.Model):
         return self.name
 
     def save(self, *args, **kwargs):
-        results = self.results.all()
         crews = []
         athletes = []
-        for result in results:
-            crews.append(result.crew.id)
-            for athlete in result.crew.athletes.all():
-                athletes.append(athlete.id)
+
+        try:
+            results = self.results.all()
+            for result in results:
+                crews.append(result.crew.id)
+                for athlete in result.crew.athletes.all():
+                    athletes.append(athlete.id)
+        except ValueError:
+            pass
 
         if len(crews) != len(set(crews)):
             raise ValidationError(
diff --git a/rowers/dataprep.py b/rowers/dataprep.py
index 1bed7187..dc58b6fb 100644
--- a/rowers/dataprep.py
+++ b/rowers/dataprep.py
@@ -740,7 +740,10 @@ def join_workouts(r, ids, title='Joined Workout',
     while len(files):
         row2 = rdata(files[0])
         if row2 != 0 and row2 is not None:
-            row = row+row2
+            try:
+                row = row+row2
+            except TypeError:  # pragma: no cover
+                pass
         files = files[1:]
 
     timestr = strftime("%Y%m%d-%H%M%S")
diff --git a/rowers/models.py b/rowers/models.py
index a5c30698..43665c5b 100644
--- a/rowers/models.py
+++ b/rowers/models.py
@@ -2963,7 +2963,10 @@ class PlannedSession(models.Model):
         if self.fitfile:
             steps = steps_read_fit(settings.MEDIA_ROOT+'/'+self.fitfile.name)
             self.steps = steps
-            self.steps['workoutName'] = self.name
+            try:
+                self.steps['workoutName'] = self.name
+            except TypeError:
+                pass
 
         self.save()
 
@@ -4696,6 +4699,8 @@ class WorkoutForm(ModelForm):
         cd = self.cleaned_data
         if cd['duration'] is None or cd['duration'] == '':
             raise forms.ValidationError('Duration cannot be empty')
+        if cd['date'] is None or cd['date'] == '':
+            raise forms.ValidationError('Date cannot be empty')
 
 # Used for the rowing physics calculations
 
diff --git a/rowers/plannedsessions.py b/rowers/plannedsessions.py
index 43fe0642..fe89dbbd 100644
--- a/rowers/plannedsessions.py
+++ b/rowers/plannedsessions.py
@@ -329,7 +329,7 @@ def get_indoorraces(workout):
     if workout.duration is None:
         workout.duration = timedelta(0)
 
-    if workout.duration.second == 0 and workout.duration.microsecond == 0:
+    if workout.duration.seconds == 0 and workout.duration.microseconds == 0:
         duration = 60*workout.duration.hour+workout.duration.minute
 
         races2 = VirtualRace.objects.filter(
diff --git a/rowers/tests/testdata/testdata.tcx.gz b/rowers/tests/testdata/testdata.tcx.gz
index e0a77a3e..68924396 100644
Binary files a/rowers/tests/testdata/testdata.tcx.gz and b/rowers/tests/testdata/testdata.tcx.gz differ