diff --git a/src/solo_turnier/output.py b/src/solo_turnier/output.py
index 3ee874a..8d21f46 100644
--- a/src/solo_turnier/output.py
+++ b/src/solo_turnier/output.py
@@ -16,7 +16,7 @@ sectionMap = {
 
 class AbstractOutputter:
     def __init__(self):
-        self.worker = solo_turnier.worker.DataWorker()
+        self.worker = solo_turnier.workers.DataWorker.DataWorker()
         self.groups = []
         self.dances = []
         self.showIds = False
diff --git a/src/solo_turnier/worker.py b/src/solo_turnier/worker.py
index e87a079..b099fbc 100644
--- a/src/solo_turnier/worker.py
+++ b/src/solo_turnier/worker.py
@@ -1,6 +1,15 @@
 from .reader import ResultRow
 
+# import logging
+# from pprint import pformat
 
+# import re
+
+# import solo_turnier
+
+# from .types import HtmlCompetitionResultRow as CompetitionResult
+# from . import types
+# from . import competition_class
 
 
 class HtmlPerson:
diff --git a/src/solo_turnier/workers/DataWorker.py b/src/solo_turnier/workers/DataWorker.py
index 49f3e73..5bf21f8 100644
--- a/src/solo_turnier/workers/DataWorker.py
+++ b/src/solo_turnier/workers/DataWorker.py
@@ -2,6 +2,7 @@ from ..reader import ResultRow
 from ..worker import ResultPerson
 from ..types import HtmlCompetitionResultRow as CompetitionResult
 from solo_turnier import html_parser
+import logging
 
 
 class DataWorker:
diff --git a/src/solo_turnier/workers/Worker.py b/src/solo_turnier/workers/Worker.py
index 6e6e525..40bfdf8 100644
--- a/src/solo_turnier/workers/Worker.py
+++ b/src/solo_turnier/workers/Worker.py
@@ -42,6 +42,7 @@ class Worker:
         self.l.log(5, "Inverted group maping: %s", invertedGroupMapping)
 
         totalResult = {}
+        ret = types.State4(totalResult)
 
         for group in groups:
             self.l.debug("Collecting data for total result of group %s", group)
@@ -75,32 +76,27 @@ class Worker:
 
         self.l.log(5, "Total result of all groups: %s", pformat(totalResult))
 
-        ret = types.State4(totalResult)
         return ret
 
     def _extractGroups(self, data: types.State3):
-        groupParser = solo_turnier.group.GroupParser()
-
         groupSet = set([])
         # for id in data.previewImport.participants:
         #     participants = data.previewImport.participants[id]
         #     for participant in participants:
         #         groupSet.add(participant.group)
         for tup in data.htmlResults.results.keys():
-            gr = groupParser.parseClass(tup[0])
+            gr = self._groupParser.parseClass(tup[0])
             # groupSet.add(gr)
             groupSet.update(gr.getContainedGroups())
             # self.l.log(5, 'Group type %s', type(gr))
 
         self.l.log(5, "Set of active groups: %s", groupSet)
-        groups = groupParser.getGroupsAsSortedList(groupSet)
+        groups = self._groupParser.getGroupsAsSortedList(groupSet)
         return groups
 
     def _getGroupMapping(
         self, importedData: types.State3
     ) -> dict[int, solo_turnier.group.Group | None]:
-        groupParser = solo_turnier.group.GroupParser()
-
         def _getBestGroupGuess(groups, id):
             counts = {}
             grNones = 0
@@ -141,11 +137,11 @@ class Worker:
 
         groupsPerId = {}
         for tup in importedData.htmlResults.results:
-            competitionGroup = groupParser.parseClass(tup[0])
+            competitionGroup = self._groupParser.parseClass(tup[0])
             fixture = importedData.htmlResults.tabges.get(tup, (None, None, None))
             id = int(tup[3])
             if fixture[2] is not None:
-                group = groupParser.parseClass(fixture[2])
+                group = self._groupParser.parseClass(fixture[2])
             else:
                 containedGroups = competitionGroup.getContainedGroups()
                 if len(containedGroups) > 1:
@@ -202,13 +198,11 @@ class Worker:
     def _extractDancesPerGroup(
         self, data: types.State3, group: solo_turnier.group.Group
     ):
-        groupParser = solo_turnier.group.GroupParser()
-
         dances = set()
         additionalDances = set()
         foundDances = set()
         for tup in data.htmlResults.results.keys():
-            currentGroup = groupParser.parseClass(tup[0])
+            currentGroup = self._groupParser.parseClass(tup[0])
             if group not in currentGroup.getContainedGroups():
                 continue
             foundDances.add(tup[2])
@@ -233,15 +227,13 @@ class Worker:
         # previewData: types.HtmlPreviewImport,
         group: solo_turnier.group.Group,
     ) -> list[types.HtmlPreviewParticipant]:
-        groupParser = types.group.GroupParser()
-
         ret = []
 
         # self.l.log(5, 'Table %s', pformat(importedData.htmlResults.tabges))
         # self.l.log(5, 'Results %s', pformat(importedData.htmlResults.results))
 
         for tup in importedData.htmlResults.results.keys():
-            currentGroup = groupParser.parseClass(tup[0])
+            currentGroup = self._groupParser.parseClass(tup[0])
             activeGroups = currentGroup.getContainedGroups()
             if group not in activeGroups:
                 continue
@@ -252,7 +244,7 @@ class Worker:
             else:
                 if (
                     fixture[2] is not None
-                    and groupParser.parseClass(fixture[2]) != group
+                    and self._groupParser.parseClass(fixture[2]) != group
                 ):
                     self.l.log(
                         5,