diff --git a/rowers/session_utils.py b/rowers/session_utils.py
index 735f028d..ab3d9b7b 100644
--- a/rowers/session_utils.py
+++ b/rowers/session_utils.py
@@ -1,4 +1,5 @@
 from django.utils import timezone
+import datetime as dt
 from rowers.models import Workout, VirtualRaceResult, CourseTestResult
 
 def timefield_to_seconds_duration(t):
diff --git a/rowers/tasks.py b/rowers/tasks.py
index 94dea01b..cf19d8dc 100644
--- a/rowers/tasks.py
+++ b/rowers/tasks.py
@@ -3904,8 +3904,11 @@ def fetch_strava_workout(stravatoken, oauth_data, stravaid, csvfilename, userid,
         lat = np.zeros(len(t))
         lon = np.zeros(len(t))
 
-    strokelength = velo*60./(spm)
-    strokelength[np.isinf(strokelength)] = 0.0
+    try:
+        strokelength = velo*60./(spm)
+        strokelength[np.isinf(strokelength)] = 0.0
+    except ValueError:
+        strokelength = np.zeros(len(t))
 
     pace = 500./(1.0*velo2)
     pace[np.isinf(pace)] = 0.0
diff --git a/rowers/tests/testdata/testdata.tcx.gz b/rowers/tests/testdata/testdata.tcx.gz
index 415f6b2f..f4be04e3 100644
Binary files a/rowers/tests/testdata/testdata.tcx.gz and b/rowers/tests/testdata/testdata.tcx.gz differ