diff --git a/rowers/views.py b/rowers/views.py
index 696fa37b..1b2e35f3 100644
--- a/rowers/views.py
+++ b/rowers/views.py
@@ -369,6 +369,8 @@ def add_workout_from_strokedata(user,importid,data,strokedata,
     spm = strokedata.ix[:,'spm']
     hr = strokedata.ix[:,'hr']
     pace = strokedata.ix[:,'p']/10.
+    pace = np.clip(pace,0,1e4)
+    pace = pace.replace(0,300)
 
     velo = 500./pace