diff --git a/module-server/src/main/java/de/twomartens/wahlrecht/repository/ElectionResultRepository.java b/module-server/src/main/java/de/twomartens/wahlrecht/repository/ElectionResultRepository.java
index 51dd244..bdbc237 100644
--- a/module-server/src/main/java/de/twomartens/wahlrecht/repository/ElectionResultRepository.java
+++ b/module-server/src/main/java/de/twomartens/wahlrecht/repository/ElectionResultRepository.java
@@ -1,9 +1,7 @@
 package de.twomartens.wahlrecht.repository;
 
 import de.twomartens.wahlrecht.model.db.ElectionResult;
-import java.util.Optional;
 import org.springframework.data.mongodb.repository.MongoRepository;
 
 public interface ElectionResultRepository extends MongoRepository<ElectionResult, String>  {
-  Optional<ElectionResult> findByElectionName(String name);
 }
diff --git a/module-server/src/main/java/de/twomartens/wahlrecht/repository/VotingResultRepository.java b/module-server/src/main/java/de/twomartens/wahlrecht/repository/VotingResultRepository.java
deleted file mode 100644
index 8d37ecb..0000000
--- a/module-server/src/main/java/de/twomartens/wahlrecht/repository/VotingResultRepository.java
+++ /dev/null
@@ -1,8 +0,0 @@
-package de.twomartens.wahlrecht.repository;
-
-import de.twomartens.wahlrecht.model.db.VotingResult;
-import org.springframework.data.mongodb.repository.MongoRepository;
-
-public interface VotingResultRepository extends MongoRepository<VotingResult, String> {
-
-}
diff --git a/module-server/src/main/java/de/twomartens/wahlrecht/service/CalculationService.java b/module-server/src/main/java/de/twomartens/wahlrecht/service/CalculationService.java
index 40da6e1..3caa0ad 100644
--- a/module-server/src/main/java/de/twomartens/wahlrecht/service/CalculationService.java
+++ b/module-server/src/main/java/de/twomartens/wahlrecht/service/CalculationService.java
@@ -37,11 +37,10 @@ public class CalculationService {
   private final NominationService nominationService;
   private final ElectionService electionService;
   private final LinkedList<Double> electionNumberHistory = new LinkedList<>();
-  private StopWatch stopWatch;
 
   public ElectedCandidates determineElectedCandidates(@NonNull ElectionResult electionResult) {
     log.info("Calculate election result for election {}", electionResult.electionName());
-    stopWatch = new StopWatch();
+    StopWatch stopWatch = new StopWatch();
     stopWatch.start("determineElectedCandidates");
     Election election = electionService.getElectionInternal(electionResult.electionName());
     SeatResult seatResult = calculateOverallSeatDistribution(election,
diff --git a/module-server/src/main/java/de/twomartens/wahlrecht/service/ConstituencyService.java b/module-server/src/main/java/de/twomartens/wahlrecht/service/ConstituencyService.java
index daae51a..6a92d13 100644
--- a/module-server/src/main/java/de/twomartens/wahlrecht/service/ConstituencyService.java
+++ b/module-server/src/main/java/de/twomartens/wahlrecht/service/ConstituencyService.java
@@ -1,15 +1,12 @@
 package de.twomartens.wahlrecht.service;
 
-import de.twomartens.wahlrecht.mapper.v1.ConstituencyMapper;
 import de.twomartens.wahlrecht.model.db.Constituency;
 import de.twomartens.wahlrecht.model.internal.ConstituencyId;
 import de.twomartens.wahlrecht.repository.ConstituencyRepository;
-import java.util.Collection;
 import java.util.Map;
 import java.util.function.Function;
 import java.util.stream.Collectors;
 import lombok.RequiredArgsConstructor;
-import org.mapstruct.factory.Mappers;
 import org.springframework.lang.NonNull;
 import org.springframework.stereotype.Service;
 
@@ -18,23 +15,9 @@ import org.springframework.stereotype.Service;
 public class ConstituencyService {
 
   private final ConstituencyRepository repository;
-  private final ConstituencyMapper mapper = Mappers.getMapper(ConstituencyMapper.class);
 
   private Map<ConstituencyId, Constituency> constituencies;
 
-  public Collection<Constituency> getConstituencies() {
-    return repository.findAll();
-  }
-
-  public Constituency getConstituency(ConstituencyId constituencyId) {
-    return constituencies.get(constituencyId);
-  }
-
-  public de.twomartens.wahlrecht.model.internal.Constituency getConstituencyInternal(
-      ConstituencyId constituencyId) {
-    return mapper.mapToInternal(getConstituency(constituencyId));
-  }
-
   public Constituency storeConstituency(@NonNull Constituency constituency) {
     if (constituencies == null) {
       fetchConstituencies();
diff --git a/module-server/src/main/java/de/twomartens/wahlrecht/service/PartyService.java b/module-server/src/main/java/de/twomartens/wahlrecht/service/PartyService.java
index db0628f..3035cd8 100644
--- a/module-server/src/main/java/de/twomartens/wahlrecht/service/PartyService.java
+++ b/module-server/src/main/java/de/twomartens/wahlrecht/service/PartyService.java
@@ -32,20 +32,6 @@ public class PartyService {
     return parties;
   }
 
-  public PartyInElection getPartyByElectionNameAndAbbreviation(String electionName,
-      String abbreviation) {
-    if (parties == null) {
-      fetchParties();
-    }
-    PartyId partyId = new PartyId(electionName, abbreviation);
-    PartyInElection party = parties.get(partyId);
-    if (party == null) {
-      throw new ResponseStatusException(HttpStatus.NOT_FOUND,
-          "no party found for %s and %s".formatted(electionName, abbreviation));
-    }
-    return party;
-  }
-
   public boolean storeParty(PartyInElection partyInElection) {
     if (parties == null) {
       fetchParties();