diff --git a/data/nethack/logfile/electra.json b/data/nethack/logfile/electra.json
index 8e320b7..82a917b 100644
--- a/data/nethack/logfile/electra.json
+++ b/data/nethack/logfile/electra.json
@@ -1,478 +1,8 @@
 {
-  "generated": "2022-11-20T09:20:44.083781",
+  "generated": "2022-11-20T09:59:06.983143",
   "logfile": [
     {
-      "score": 0,
-      "dungeon": {
-        "n": 0,
-        "name": "The Dungeons of Doom",
-        "level": {
-          "n": 1,
-          "descriptive": "Level 1"
-        }
-      },
-      "end_date": "2022-04-05",
-      "start_date": "2022-04-05",
-      "character": {
-        "name": "Eryn",
-        "descriptor": "Eryn-Sam-Hum-Fem-Law",
-        "max_level": 1,
-        "hp": {
-          "n": 15,
-          "max": 15
-        },
-        "role": {
-          "short": "Sam",
-          "descriptive": "Samurai"
-        },
-        "race": {
-          "short": "Hum",
-          "descriptive": "Human"
-        },
-        "gender": {
-          "short": "Fem",
-          "descriptive": "Female"
-        },
-        "alignment": {
-          "short": "Law",
-          "descriptive": "Lawful"
-        }
-      },
-      "death": {
-        "n": 0,
-        "cause": "quit"
-      },
-      "system": {
-        "hostname": "electra",
-        "user_id": 501,
-        "nethack_version": "3.6.6"
-      }
-    },
-    {
-      "score": 1309,
-      "dungeon": {
-        "n": 0,
-        "name": "The Dungeons of Doom",
-        "level": {
-          "n": 7,
-          "descriptive": "Level 7"
-        }
-      },
-      "end_date": "2022-04-05",
-      "start_date": "2022-04-05",
-      "character": {
-        "name": "Eryn",
-        "descriptor": "Eryn-Sam-Hum-Fem-Law",
-        "max_level": 7,
-        "hp": {
-          "n": 0,
-          "max": 46
-        },
-        "role": {
-          "short": "Sam",
-          "descriptive": "Samurai"
-        },
-        "race": {
-          "short": "Hum",
-          "descriptive": "Human"
-        },
-        "gender": {
-          "short": "Fem",
-          "descriptive": "Female"
-        },
-        "alignment": {
-          "short": "Law",
-          "descriptive": "Lawful"
-        }
-      },
-      "death": {
-        "n": 1,
-        "cause": "killed by a pony"
-      },
-      "system": {
-        "hostname": "electra",
-        "user_id": 501,
-        "nethack_version": "3.6.6"
-      }
-    },
-    {
-      "score": 148,
-      "dungeon": {
-        "n": 0,
-        "name": "The Dungeons of Doom",
-        "level": {
-          "n": 2,
-          "descriptive": "Level 2"
-        }
-      },
-      "end_date": "2022-04-05",
-      "start_date": "2022-04-05",
-      "character": {
-        "name": "Eryn",
-        "descriptor": "Eryn-Mon-Hum-Fem-Neu",
-        "max_level": 2,
-        "hp": {
-          "n": 0,
-          "max": 20
-        },
-        "role": {
-          "short": "Mon",
-          "descriptive": "Monk"
-        },
-        "race": {
-          "short": "Hum",
-          "descriptive": "Human"
-        },
-        "gender": {
-          "short": "Fem",
-          "descriptive": "Female"
-        },
-        "alignment": {
-          "short": "Neu",
-          "descriptive": "Neutral"
-        }
-      },
-      "death": {
-        "n": 1,
-        "cause": "killed by a water moccasin"
-      },
-      "system": {
-        "hostname": "electra",
-        "user_id": 501,
-        "nethack_version": "3.6.6"
-      }
-    },
-    {
-      "score": 2,
-      "dungeon": {
-        "n": 0,
-        "name": "The Dungeons of Doom",
-        "level": {
-          "n": 1,
-          "descriptive": "Level 1"
-        }
-      },
-      "end_date": "2022-04-05",
-      "start_date": "2022-04-05",
-      "character": {
-        "name": "Eryn",
-        "descriptor": "Eryn-Mon-Hum-Fem-Neu",
-        "max_level": 1,
-        "hp": {
-          "n": 8,
-          "max": 14
-        },
-        "role": {
-          "short": "Mon",
-          "descriptive": "Monk"
-        },
-        "race": {
-          "short": "Hum",
-          "descriptive": "Human"
-        },
-        "gender": {
-          "short": "Fem",
-          "descriptive": "Female"
-        },
-        "alignment": {
-          "short": "Neu",
-          "descriptive": "Neutral"
-        }
-      },
-      "death": {
-        "n": 0,
-        "cause": "quit"
-      },
-      "system": {
-        "hostname": "electra",
-        "user_id": 501,
-        "nethack_version": "3.6.6"
-      }
-    },
-    {
-      "score": 370,
-      "dungeon": {
-        "n": 0,
-        "name": "The Dungeons of Doom",
-        "level": {
-          "n": 4,
-          "descriptive": "Level 4"
-        }
-      },
-      "end_date": "2022-04-07",
-      "start_date": "2022-04-05",
-      "character": {
-        "name": "Eryn",
-        "descriptor": "Eryn-Sam-Hum-Fem-Law",
-        "max_level": 4,
-        "hp": {
-          "n": 0,
-          "max": 28
-        },
-        "role": {
-          "short": "Sam",
-          "descriptive": "Samurai"
-        },
-        "race": {
-          "short": "Hum",
-          "descriptive": "Human"
-        },
-        "gender": {
-          "short": "Fem",
-          "descriptive": "Female"
-        },
-        "alignment": {
-          "short": "Law",
-          "descriptive": "Lawful"
-        }
-      },
-      "death": {
-        "n": 1,
-        "cause": "killed by a coyote, while fainted from lack of food"
-      },
-      "system": {
-        "hostname": "electra",
-        "user_id": 501,
-        "nethack_version": "3.6.6"
-      }
-    },
-    {
-      "score": 0,
-      "dungeon": {
-        "n": 0,
-        "name": "The Dungeons of Doom",
-        "level": {
-          "n": 1,
-          "descriptive": "Level 1"
-        }
-      },
-      "end_date": "2022-04-09",
-      "start_date": "2022-04-09",
-      "character": {
-        "name": "Eryn",
-        "descriptor": "Eryn-Sam-Hum-Fem-Law",
-        "max_level": 1,
-        "hp": {
-          "n": 15,
-          "max": 15
-        },
-        "role": {
-          "short": "Sam",
-          "descriptive": "Samurai"
-        },
-        "race": {
-          "short": "Hum",
-          "descriptive": "Human"
-        },
-        "gender": {
-          "short": "Fem",
-          "descriptive": "Female"
-        },
-        "alignment": {
-          "short": "Law",
-          "descriptive": "Lawful"
-        }
-      },
-      "death": {
-        "n": 0,
-        "cause": "quit"
-      },
-      "system": {
-        "hostname": "electra",
-        "user_id": 501,
-        "nethack_version": "3.6.6"
-      }
-    },
-    {
-      "score": 737,
-      "dungeon": {
-        "n": 0,
-        "name": "The Dungeons of Doom",
-        "level": {
-          "n": 4,
-          "descriptive": "Level 4"
-        }
-      },
-      "end_date": "2022-04-10",
-      "start_date": "2022-04-04",
-      "character": {
-        "name": "Eryn",
-        "descriptor": "Eryn-Rog-Hum-Fem-Cha",
-        "max_level": 4,
-        "hp": {
-          "n": 0,
-          "max": 31
-        },
-        "role": {
-          "short": "Rog",
-          "descriptive": "Rogue"
-        },
-        "race": {
-          "short": "Hum",
-          "descriptive": "Human"
-        },
-        "gender": {
-          "short": "Fem",
-          "descriptive": "Female"
-        },
-        "alignment": {
-          "short": "Cha",
-          "descriptive": "Chaotic"
-        }
-      },
-      "death": {
-        "n": 1,
-        "cause": "killed by a dwarf, while fainted from lack of food"
-      },
-      "system": {
-        "hostname": "electra",
-        "user_id": 501,
-        "nethack_version": "3.6.6"
-      }
-    },
-    {
-      "score": 1460,
-      "dungeon": {
-        "n": 0,
-        "name": "The Dungeons of Doom",
-        "level": {
-          "n": 6,
-          "descriptive": "Level 6"
-        }
-      },
-      "end_date": "2022-04-18",
-      "start_date": "2022-04-12",
-      "character": {
-        "name": "Eryn",
-        "descriptor": "Eryn-Sam-Hum-Fem-Law",
-        "max_level": 6,
-        "hp": {
-          "n": 0,
-          "max": 58
-        },
-        "role": {
-          "short": "Sam",
-          "descriptive": "Samurai"
-        },
-        "race": {
-          "short": "Hum",
-          "descriptive": "Human"
-        },
-        "gender": {
-          "short": "Fem",
-          "descriptive": "Female"
-        },
-        "alignment": {
-          "short": "Law",
-          "descriptive": "Lawful"
-        }
-      },
-      "death": {
-        "n": 1,
-        "cause": "killed by a killer bee"
-      },
-      "system": {
-        "hostname": "electra",
-        "user_id": 501,
-        "nethack_version": "3.6.6"
-      }
-    },
-    {
-      "score": 1500,
-      "dungeon": {
-        "n": 2,
-        "name": "The Gnomish Mines",
-        "level": {
-          "n": 6,
-          "descriptive": "Level 6"
-        }
-      },
-      "end_date": "2022-05-06",
-      "start_date": "2022-04-19",
-      "character": {
-        "name": "Eryn",
-        "descriptor": "Eryn-Sam-Hum-Fem-Law",
-        "max_level": 8,
-        "hp": {
-          "n": 0,
-          "max": 53
-        },
-        "role": {
-          "short": "Sam",
-          "descriptive": "Samurai"
-        },
-        "race": {
-          "short": "Hum",
-          "descriptive": "Human"
-        },
-        "gender": {
-          "short": "Fem",
-          "descriptive": "Female"
-        },
-        "alignment": {
-          "short": "Law",
-          "descriptive": "Lawful"
-        }
-      },
-      "death": {
-        "n": 1,
-        "cause": "killed by a dwarf"
-      },
-      "system": {
-        "hostname": "electra",
-        "user_id": 501,
-        "nethack_version": "3.6.6"
-      }
-    },
-    {
-      "score": 1136,
-      "dungeon": {
-        "n": 0,
-        "name": "The Dungeons of Doom",
-        "level": {
-          "n": 6,
-          "descriptive": "Level 6"
-        }
-      },
-      "end_date": "2022-05-10",
-      "start_date": "2022-05-09",
-      "character": {
-        "name": "Eryn",
-        "descriptor": "Eryn-Sam-Hum-Fem-Law",
-        "max_level": 7,
-        "hp": {
-          "n": 0,
-          "max": 39
-        },
-        "role": {
-          "short": "Sam",
-          "descriptive": "Samurai"
-        },
-        "race": {
-          "short": "Hum",
-          "descriptive": "Human"
-        },
-        "gender": {
-          "short": "Fem",
-          "descriptive": "Female"
-        },
-        "alignment": {
-          "short": "Law",
-          "descriptive": "Lawful"
-        }
-      },
-      "death": {
-        "n": 1,
-        "cause": "killed by an invisible Uruk-hai"
-      },
-      "system": {
-        "hostname": "electra",
-        "user_id": 501,
-        "nethack_version": "3.6.6"
-      }
-    },
-    {
-      "score": 1413,
+      "score": 1395,
       "dungeon": {
         "n": 2,
         "name": "The Gnomish Mines",
@@ -481,19 +11,19 @@
           "descriptive": "Level 5"
         }
       },
-      "end_date": "2022-05-25",
-      "start_date": "2022-05-15",
+      "end_date": "2022-11-19",
+      "start_date": "2022-11-18",
       "character": {
         "name": "Eryn",
-        "descriptor": "Eryn-Sam-Hum-Fem-Law",
+        "descriptor": "Eryn-Kni-Hum-Fem-Law",
         "max_level": 5,
         "hp": {
           "n": 0,
-          "max": 58
+          "max": 45
         },
         "role": {
-          "short": "Sam",
-          "descriptive": "Samurai"
+          "short": "Kni",
+          "descriptive": "Knight"
         },
         "race": {
           "short": "Hum",
@@ -510,7 +40,101 @@
       },
       "death": {
         "n": 1,
-        "cause": "killed by a killer bee"
+        "cause": "killed by a black naga hatchling"
+      },
+      "system": {
+        "hostname": "electra",
+        "user_id": 501,
+        "nethack_version": "3.6.6"
+      }
+    },
+    {
+      "score": 0,
+      "dungeon": {
+        "n": 0,
+        "name": "The Dungeons of Doom",
+        "level": {
+          "n": 1,
+          "descriptive": "Level 1"
+        }
+      },
+      "end_date": "2022-11-19",
+      "start_date": "2022-11-19",
+      "character": {
+        "name": "Eryn",
+        "descriptor": "Eryn-Arc-Hum-Fem-Neu",
+        "max_level": 1,
+        "hp": {
+          "n": 13,
+          "max": 13
+        },
+        "role": {
+          "short": "Arc",
+          "descriptive": "Archaeologist"
+        },
+        "race": {
+          "short": "Hum",
+          "descriptive": "Human"
+        },
+        "gender": {
+          "short": "Fem",
+          "descriptive": "Female"
+        },
+        "alignment": {
+          "short": "Neu",
+          "descriptive": "Neutral"
+        }
+      },
+      "death": {
+        "n": 0,
+        "cause": "quit"
+      },
+      "system": {
+        "hostname": "electra",
+        "user_id": 501,
+        "nethack_version": "3.6.6"
+      }
+    },
+    {
+      "score": 246,
+      "dungeon": {
+        "n": 0,
+        "name": "The Dungeons of Doom",
+        "level": {
+          "n": 3,
+          "descriptive": "Level 3"
+        }
+      },
+      "end_date": "2022-11-19",
+      "start_date": "2022-11-19",
+      "character": {
+        "name": "Eryn",
+        "descriptor": "Eryn-Val-Hum-Fem-Law",
+        "max_level": 4,
+        "hp": {
+          "n": 0,
+          "max": 21
+        },
+        "role": {
+          "short": "Val",
+          "descriptive": "Valkyrie"
+        },
+        "race": {
+          "short": "Hum",
+          "descriptive": "Human"
+        },
+        "gender": {
+          "short": "Fem",
+          "descriptive": "Female"
+        },
+        "alignment": {
+          "short": "Law",
+          "descriptive": "Lawful"
+        }
+      },
+      "death": {
+        "n": 1,
+        "cause": "killed by a wand"
       },
       "system": {
         "hostname": "electra",
diff --git a/scripts/import-nethack-logfile.py b/scripts/import-nethack-logfile.py
index 6591c7d..0b2e8e0 100755
--- a/scripts/import-nethack-logfile.py
+++ b/scripts/import-nethack-logfile.py
@@ -45,11 +45,14 @@ RACES = {
 }
 
 ROLES = {
+    'Arc': 'Archaeologist',
+    'Kni': 'Knight',
     'Mon': 'Monk',
     'Pri': 'Priest',
     'Ran': 'Ranger',
     'Rog': 'Rogue',
     'Sam': 'Samurai',
+    'Val': 'Valkyrie',
 }
 
 GENDERS = {
@@ -64,7 +67,7 @@ ALIGNMENTS = {
 
 def parse_args(argv, *a, **kw):
     parser = argparse.ArgumentParser(*a, **kw)
-    parser.add_argument('-o', '--output',help='Path to the output file')
+    parser.add_argument('-o', '--output', help='Path to the output file')
     parser.add_argument('logfile', help='Path to the Nethack log file to convert')
     args = parser.parse_args(argv)
     return args
@@ -133,15 +136,26 @@ def main(argv):
         'logfile': records,
     }
 
+    logfile_has_changed = False
     output_path = args.output
+    output_file = None
+
     if output_path and output_path != '-':
-        output_file = open(output_path, 'w')
+        with open(output_path, 'r') as existing_logfile:
+            existing_logfile_object = json.load(existing_logfile)
+            logfile_has_changed = existing_logfile_object.get('logfile', {}) != records 
+
+        if logfile_has_changed:
+            output_file = open(output_path, 'w')
     else:
         output_file = sys.stdout
 
-    json.dump(output_object, output_file, indent=2)
-    output_file.write('\n')
-    output_file.close()
+    if output_file:
+        json.dump(output_object, output_file, indent=2)
+        output_file.write('\n')
+        output_file.close()
+    else:
+        print('No changes to logfile')
 
     return 0