diff --git a/rowers/c2stuff.py b/rowers/c2stuff.py
index fc60be23..5d184895 100644
--- a/rowers/c2stuff.py
+++ b/rowers/c2stuff.py
@@ -347,9 +347,20 @@ def summaryfromsplitdata(splitdata,data,filename,sep='|'):
         timebased = False
 
     for interval in splitdata:
-        idist = interval['distance']
-        itime = interval['time']/10.
-        ipace = 500.*itime/idist
+        try:
+            idist = interval['distance']
+        except KeyError:
+            idist = 0
+
+        try:
+            itime = interval['time']/10.
+        except KeyError:
+            itime = 0
+        try:
+            ipace = 500.*itime/idist
+        except (ZeroDivisionError,OverflowError):
+            ipace = 180.
+
         try:
             ispm = interval['stroke_rate']
         except KeyError: