diff --git a/iron_condor.py b/iron_condor.py
index a525e87..eb6f139 100644
--- a/iron_condor.py
+++ b/iron_condor.py
@@ -162,7 +162,8 @@ def _enter_iron_condor(entry_time: datetime):
             {'Action': 'SELL', 'Strike': short_call_strike, 'Type': 'CALL'},
             {'Action': 'BUY', 'Strike': long_call_strike, 'Type': 'CALL'}
         ],
-        'Open': call_spread_fill
+        'Open': call_spread_fill,
+        'Entry Slippage': (call_spread_fill - call_spread_mid)
     }
 
     put_spread_details = {
@@ -170,7 +171,8 @@ def _enter_iron_condor(entry_time: datetime):
             {'Action': 'SELL', 'Strike': short_put_strike, 'Type': 'PUT'},
             {'Action': 'BUY', 'Strike': long_put_strike, 'Type': 'PUT'}
         ],
-        'Open': put_spread_fill
+        'Open': put_spread_fill,
+        'Entry Slippage': (put_spread_fill - put_spread_mid)
     }
 
     upsert(pd.DataFrame([{