more robust race form

rowers/tasks.py

@@ -210,6 +210,11 @@ def handle_check_race_course(self,
     else:
         debug = False
 
+    if 'splitsecond' in kwargs:
+        splitsecond = kwargs['splitsecond']
+    else:
+        splitsecond = 0
+
     mode = 'race'
     if 'mode' in kwargs:
         mode = kwargs['mode']
@@ -236,10 +241,10 @@ def handle_check_race_course(self,
         ' ElapsedTime (sec)': 'time',
         }, inplace=True)
 
-
     rowdata.fillna(method='backfill',inplace=True)
 
     rowdata['time'] = rowdata['time']-rowdata.ix[0,'time']
+    rowdata = rowdata[rowdata['time']>splitsecond]
     # we may want to expand the time (interpolate)
     rowdata['dt'] = rowdata['time'].apply(
         lambda x: timedelta(seconds=x)