diff --git a/java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/server/SailingServiceImpl.java b/java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/server/SailingServiceImpl.java
index 014d9f305d6..c50ad758f4a 100755
--- a/java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/server/SailingServiceImpl.java
+++ b/java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/server/SailingServiceImpl.java
@@ -257,7 +257,6 @@ import com.sap.sailing.gwt.ui.shared.WindDTO;
 import com.sap.sailing.gwt.ui.shared.WindInfoForRaceDTO;
 import com.sap.sailing.gwt.ui.shared.WindTrackInfoDTO;
 import com.sap.sailing.polars.PolarDataService;
-import com.sap.sailing.polars.factory.PolarDataServiceFactory;
 import com.sap.sailing.resultimport.ResultUrlProvider;
 import com.sap.sailing.resultimport.ResultUrlRegistry;
 import com.sap.sailing.server.RacingEventService;
@@ -369,9 +368,7 @@ public class SailingServiceImpl extends ProxiedRemoteServiceServlet implements S
 
     private final SwissTimingReplayService swissTimingReplayService;
 
-    private PolarDataService polarDataService;
     private final BundleContext context;
-
     public SailingServiceImpl() {
         context = Activator.getDefault();
         racingEventServiceTracker = createAndOpenRacingEventServiceTracker(context);
@@ -414,7 +411,6 @@ public class SailingServiceImpl extends ProxiedRemoteServiceServlet implements S
                 /* maximumPoolSize */ THREAD_POOL_SIZE,
                 /* keepAliveTime */ 60, TimeUnit.SECONDS,
                 /* workQueue */ new LinkedBlockingQueue<Runnable>());
-        polarDataService = PolarDataServiceFactory.createStandardPolarDataService();
     }
 
     protected SwissTimingReplayService getSwissTimingReplayService(BundleContext context) {
@@ -3128,6 +3124,7 @@ public class SailingServiceImpl extends ProxiedRemoteServiceServlet implements S
         if (name == null || name.isEmpty()) {
             name = getCommonBoatClass(trackedRaces);
         }
+        PolarDataService polarDataService = service.getPolarDataService();
         PolarSheetsData result = polarDataService.generatePolarSheet(trackedRaces, settings, executor);
         return new PolarSheetGenerationResponseImpl(id, name, result);
     }
diff --git a/java/com.sap.sailing.mongodb.test/META-INF/MANIFEST.MF b/java/com.sap.sailing.mongodb.test/META-INF/MANIFEST.MF
index d5eb223095b..c7cefcd62b9 100755
--- a/java/com.sap.sailing.mongodb.test/META-INF/MANIFEST.MF
+++ b/java/com.sap.sailing.mongodb.test/META-INF/MANIFEST.MF
@@ -17,8 +17,9 @@ Require-Bundle: com.sap.sailing.domain,
  org.json.simple;bundle-version="1.1.0",
  com.sap.sailing.domain.swisstimingadapter,
  org.objenesis;bundle-version="1.3.0",
- org.junit4;bundle-version="4.8.2", 
+ org.junit4;bundle-version="4.8.2",
  org.hamcrest;bundle-version="1.1.0",
- org.mockito.mockito-core;bundle-version="1.9.5"
+ org.mockito.mockito-core;bundle-version="1.9.5",
+ com.sap.sailing.polars;bundle-version="1.0.0"
 Import-Package: com.sap.sailing.domain.common.impl
 
diff --git a/java/com.sap.sailing.polars/src/com/sap/sailing/polars/PolarDataService.java b/java/com.sap.sailing.polars/src/com/sap/sailing/polars/PolarDataService.java
index e93dc0f9924..2bb934d0589 100644
--- a/java/com.sap.sailing.polars/src/com/sap/sailing/polars/PolarDataService.java
+++ b/java/com.sap.sailing.polars/src/com/sap/sailing/polars/PolarDataService.java
@@ -95,4 +95,6 @@ public interface PolarDataService {
     PolarSheetsData generatePolarSheet(Set<TrackedRace> trackedRaces, PolarSheetGenerationSettings settings,
             Executor executor) throws InterruptedException, ExecutionException;
 
+    void newRaceFinishedTracking(TrackedRace trackedRace);
+
 }
diff --git a/java/com.sap.sailing.polars/src/com/sap/sailing/polars/caching/PolarFixCache.java b/java/com.sap.sailing.polars/src/com/sap/sailing/polars/caching/PolarFixCache.java
index d06c1fdce3f..f066532dce5 100644
--- a/java/com.sap.sailing.polars/src/com/sap/sailing/polars/caching/PolarFixCache.java
+++ b/java/com.sap.sailing.polars/src/com/sap/sailing/polars/caching/PolarFixCache.java
@@ -2,17 +2,18 @@ package com.sap.sailing.polars.caching;
 
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.Executor;
 
 import com.sap.sailing.domain.base.BoatClass;
 import com.sap.sailing.domain.common.RegattaAndRaceIdentifier;
-import com.sap.sailing.polars.data.impl.PolarFixImpl;
+import com.sap.sailing.polars.data.PolarFix;
 import com.sap.sailing.util.SmartFutureCache;
 
 public class PolarFixCache extends
-        SmartFutureCache<BoatClass, Map<RegattaAndRaceIdentifier, List<PolarFixImpl>>, PolarFixCacheRaceInterval> {
+        SmartFutureCache<BoatClass, Map<RegattaAndRaceIdentifier, List<PolarFix>>, PolarFixCacheRaceInterval> {
 
-    public PolarFixCache() {
-        super(new PolarFixCacheUpdater(), "polarFixCache");
+    public PolarFixCache(Executor executor) {
+        super(new PolarFixCacheUpdater(executor), "polarFixCache");
     }
 
 }
diff --git a/java/com.sap.sailing.polars/src/com/sap/sailing/polars/caching/PolarFixCacheRaceInterval.java b/java/com.sap.sailing.polars/src/com/sap/sailing/polars/caching/PolarFixCacheRaceInterval.java
index 8a14fad2114..f26067ecda7 100644
--- a/java/com.sap.sailing.polars/src/com/sap/sailing/polars/caching/PolarFixCacheRaceInterval.java
+++ b/java/com.sap.sailing.polars/src/com/sap/sailing/polars/caching/PolarFixCacheRaceInterval.java
@@ -3,30 +3,26 @@ package com.sap.sailing.polars.caching;
 import java.util.HashSet;
 import java.util.Set;
 
-import com.sap.sailing.domain.common.RegattaAndRaceIdentifier;
+import com.sap.sailing.domain.tracking.TrackedRace;
 import com.sap.sailing.util.SmartFutureCache.UpdateInterval;
 
 public class PolarFixCacheRaceInterval implements UpdateInterval<PolarFixCacheRaceInterval> {
 
-    private final Set<RegattaAndRaceIdentifier> races;
+    private final Set<TrackedRace> races;
 
-    public PolarFixCacheRaceInterval(Set<RegattaAndRaceIdentifier> races) {
+    public PolarFixCacheRaceInterval(Set<TrackedRace> races) {
         this.races = races;
     }
 
-    public Set<RegattaAndRaceIdentifier> getRaces() {
+    public Set<TrackedRace> getRaces() {
         return races;
     }
 
     @Override
     public PolarFixCacheRaceInterval join(PolarFixCacheRaceInterval otherUpdateInterval) {
-        Set<RegattaAndRaceIdentifier> joined = new HashSet<RegattaAndRaceIdentifier>();
-        for (RegattaAndRaceIdentifier race : races) {
-            joined.add(race);
-        }
-        for (RegattaAndRaceIdentifier race : otherUpdateInterval.getRaces()) {
-            joined.add(race);
-        }
+        Set<TrackedRace> joined = new HashSet<TrackedRace>();
+        joined.addAll(races);
+        joined.addAll(otherUpdateInterval.getRaces());
         return new PolarFixCacheRaceInterval(joined);
     }
 
diff --git a/java/com.sap.sailing.polars/src/com/sap/sailing/polars/caching/PolarFixCacheUpdater.java b/java/com.sap.sailing.polars/src/com/sap/sailing/polars/caching/PolarFixCacheUpdater.java
index 8ec0fdcdf3d..945802dcbd5 100644
--- a/java/com.sap.sailing.polars/src/com/sap/sailing/polars/caching/PolarFixCacheUpdater.java
+++ b/java/com.sap.sailing.polars/src/com/sap/sailing/polars/caching/PolarFixCacheUpdater.java
@@ -1,29 +1,65 @@
 package com.sap.sailing.polars.caching;
 
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import java.util.concurrent.Executor;
 
 import com.sap.sailing.domain.base.BoatClass;
 import com.sap.sailing.domain.common.RegattaAndRaceIdentifier;
-import com.sap.sailing.polars.data.impl.PolarFixImpl;
+import com.sap.sailing.domain.common.impl.PolarSheetGenerationSettingsImpl;
+import com.sap.sailing.domain.tracking.TrackedRace;
+import com.sap.sailing.polars.aggregation.PolarFixAggregator;
+import com.sap.sailing.polars.data.PolarFix;
 import com.sap.sailing.util.SmartFutureCache.CacheUpdater;
 
 public class PolarFixCacheUpdater implements
-        CacheUpdater<BoatClass, Map<RegattaAndRaceIdentifier, List<PolarFixImpl>>, PolarFixCacheRaceInterval> {
+        CacheUpdater<BoatClass, Map<RegattaAndRaceIdentifier, List<PolarFix>>, PolarFixCacheRaceInterval> {
 
-    @Override
-    public Map<RegattaAndRaceIdentifier, List<PolarFixImpl>> computeCacheUpdate(BoatClass key,
-            PolarFixCacheRaceInterval updateInterval) throws Exception {
-        // TODO Auto-generated method stub
-        return null;
+    private final Executor executor;
+
+    public PolarFixCacheUpdater(Executor executor) {
+        this.executor = executor;
     }
 
     @Override
-    public Map<RegattaAndRaceIdentifier, List<PolarFixImpl>> provideNewCacheValue(BoatClass key,
-            Map<RegattaAndRaceIdentifier, List<PolarFixImpl>> oldCacheValue,
-            Map<RegattaAndRaceIdentifier, List<PolarFixImpl>> computedCacheUpdate, PolarFixCacheRaceInterval updateInterval) {
-        // TODO Auto-generated method stub
-        return null;
+    public Map<RegattaAndRaceIdentifier, List<PolarFix>> computeCacheUpdate(BoatClass key,
+            PolarFixCacheRaceInterval updateInterval) throws Exception {
+        Set<TrackedRace> races = updateInterval.getRaces();
+        Map<RegattaAndRaceIdentifier, PolarFixAggregator> aggregators = new HashMap<RegattaAndRaceIdentifier, PolarFixAggregator>();
+        for (TrackedRace trackedRace : races) {
+            Set<TrackedRace> trackedRaces = new HashSet<TrackedRace>();
+            trackedRaces.add(trackedRace);
+            PolarFixAggregator aggregator = new PolarFixAggregator(trackedRaces,
+                    PolarSheetGenerationSettingsImpl.createStandardPolarSettings(), executor);
+            aggregator.startPolarFixAggregation();
+            aggregators.put(trackedRace.getRaceIdentifier(), aggregator);
+        }
+        Map<RegattaAndRaceIdentifier, List<PolarFix>> resultMap = new HashMap<RegattaAndRaceIdentifier, List<PolarFix>>();
+        for (Entry<RegattaAndRaceIdentifier, PolarFixAggregator> entry : aggregators.entrySet()) {
+            PolarFixAggregator aggregator = entry.getValue();
+            Set<PolarFix> result = aggregator.get();
+            List<PolarFix> resultList = new ArrayList<PolarFix>(result);
+            resultMap.put(entry.getKey(), resultList);
+        }
+        return resultMap;
+
+    }
+
+    @Override
+    public Map<RegattaAndRaceIdentifier, List<PolarFix>> provideNewCacheValue(BoatClass key,
+            Map<RegattaAndRaceIdentifier, List<PolarFix>> oldCacheValue,
+            Map<RegattaAndRaceIdentifier, List<PolarFix>> computedCacheUpdate, PolarFixCacheRaceInterval updateInterval) {
+        Map<RegattaAndRaceIdentifier, List<PolarFix>> newCacheValue = new HashMap<RegattaAndRaceIdentifier, List<PolarFix>>();
+        newCacheValue.putAll(oldCacheValue);
+        for (Entry<RegattaAndRaceIdentifier, List<PolarFix>> newEntry : computedCacheUpdate.entrySet()) {
+            newCacheValue.put(newEntry.getKey(), newEntry.getValue());
+        }
+        return newCacheValue;
     }
 
 }
diff --git a/java/com.sap.sailing.polars/src/com/sap/sailing/polars/factory/PolarDataServiceFactory.java b/java/com.sap.sailing.polars/src/com/sap/sailing/polars/factory/PolarDataServiceFactory.java
index 3247b032cc7..0b03c20a553 100644
--- a/java/com.sap.sailing.polars/src/com/sap/sailing/polars/factory/PolarDataServiceFactory.java
+++ b/java/com.sap.sailing.polars/src/com/sap/sailing/polars/factory/PolarDataServiceFactory.java
@@ -1,16 +1,18 @@
 package com.sap.sailing.polars.factory;
 
+import java.util.concurrent.Executor;
+
 import com.sap.sailing.polars.PolarDataService;
 import com.sap.sailing.polars.factory.impl.PolarDataServiceImplFactory;
 
 public abstract class PolarDataServiceFactory {
 
-    public static PolarDataService createStandardPolarDataService() {
+    public static PolarDataService createStandardPolarDataService(Executor executor) {
         PolarDataServiceFactory factory = new PolarDataServiceImplFactory();
-        return factory.createPolarDataService();
+        return factory.createPolarDataService(executor);
     }
 
-    protected abstract PolarDataService createPolarDataService();
+    protected abstract PolarDataService createPolarDataService(Executor executor);
 
 
 }
diff --git a/java/com.sap.sailing.polars/src/com/sap/sailing/polars/factory/impl/PolarDataServiceImplFactory.java b/java/com.sap.sailing.polars/src/com/sap/sailing/polars/factory/impl/PolarDataServiceImplFactory.java
index 2ea48ceb772..37af01d8343 100644
--- a/java/com.sap.sailing.polars/src/com/sap/sailing/polars/factory/impl/PolarDataServiceImplFactory.java
+++ b/java/com.sap.sailing.polars/src/com/sap/sailing/polars/factory/impl/PolarDataServiceImplFactory.java
@@ -1,5 +1,7 @@
 package com.sap.sailing.polars.factory.impl;
 
+import java.util.concurrent.Executor;
+
 import com.sap.sailing.polars.PolarDataService;
 import com.sap.sailing.polars.factory.PolarDataServiceFactory;
 import com.sap.sailing.polars.impl.PolarDataServiceImpl;
@@ -7,8 +9,8 @@ import com.sap.sailing.polars.impl.PolarDataServiceImpl;
 public class PolarDataServiceImplFactory extends PolarDataServiceFactory {
 
     @Override
-    public PolarDataService createPolarDataService() {
-        return new PolarDataServiceImpl();
+    public PolarDataService createPolarDataService(Executor executor) {
+        return new PolarDataServiceImpl(executor);
     }
 
 }
diff --git a/java/com.sap.sailing.polars/src/com/sap/sailing/polars/impl/PolarDataServiceImpl.java b/java/com.sap.sailing.polars/src/com/sap/sailing/polars/impl/PolarDataServiceImpl.java
index d5a4c344b55..04bf28bfc76 100644
--- a/java/com.sap.sailing.polars/src/com/sap/sailing/polars/impl/PolarDataServiceImpl.java
+++ b/java/com.sap.sailing.polars/src/com/sap/sailing/polars/impl/PolarDataServiceImpl.java
@@ -1,5 +1,6 @@
 package com.sap.sailing.polars.impl;
 
+import java.util.HashSet;
 import java.util.Set;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Executor;
@@ -13,11 +14,19 @@ import com.sap.sailing.domain.common.SpeedWithBearing;
 import com.sap.sailing.domain.tracking.TrackedRace;
 import com.sap.sailing.polars.PolarDataService;
 import com.sap.sailing.polars.aggregation.PolarFixAggregator;
+import com.sap.sailing.polars.caching.PolarFixCache;
+import com.sap.sailing.polars.caching.PolarFixCacheRaceInterval;
 import com.sap.sailing.polars.data.PolarFix;
 import com.sap.sailing.polars.generation.PolarSheetGenerator;
 
 public class PolarDataServiceImpl implements PolarDataService {
 
+    private final PolarFixCache polarFixCache;
+
+    public PolarDataServiceImpl(Executor executor) {
+        this.polarFixCache = new PolarFixCache(executor);
+    }
+
     @Override
     public SpeedWithBearing getOptimalUpwindSpeedWithBearingFor(BoatClass boatClass, Speed windSpeed) {
         // TODO Auto-generated method stub
@@ -64,4 +73,11 @@ public class PolarDataServiceImpl implements PolarDataService {
         return generator.generate();
     }
 
+    @Override
+    public void newRaceFinishedTracking(TrackedRace trackedRace) {
+        HashSet<TrackedRace> set = new HashSet<TrackedRace>();
+        set.add(trackedRace);
+        polarFixCache.triggerUpdate(trackedRace.getRace().getBoatClass(), new PolarFixCacheRaceInterval(set));
+    }
+
 }
diff --git a/java/com.sap.sailing.server.replication.test/META-INF/MANIFEST.MF b/java/com.sap.sailing.server.replication.test/META-INF/MANIFEST.MF
index 1d08244f5d9..1213689ffcf 100644
--- a/java/com.sap.sailing.server.replication.test/META-INF/MANIFEST.MF
+++ b/java/com.sap.sailing.server.replication.test/META-INF/MANIFEST.MF
@@ -20,4 +20,5 @@ Require-Bundle: com.sap.sailing.server,
  com.sap.sailing.domain.swisstimingadapter,
  org.json.simple;bundle-version="1.1.0",
  org.junit4;bundle-version="4.8.2",
- org.hamcrest;bundle-version="1.1.0"
+ org.hamcrest;bundle-version="1.1.0",
+ com.sap.sailing.polars;bundle-version="1.0.0"
diff --git a/java/com.sap.sailing.server/META-INF/MANIFEST.MF b/java/com.sap.sailing.server/META-INF/MANIFEST.MF
index b25247faa94..17d204a81ae 100755
--- a/java/com.sap.sailing.server/META-INF/MANIFEST.MF
+++ b/java/com.sap.sailing.server/META-INF/MANIFEST.MF
@@ -6,7 +6,9 @@ Bundle-Version: 1.0.0.qualifier
 Bundle-Activator: com.sap.sailing.server.impl.Activator
 Bundle-Vendor: SAP
 Bundle-RequiredExecutionEnvironment: JavaSE-1.7
-Import-Package: com.sap.sailing.server.gateway.deserialization,
+Import-Package: com.sap.sailing.polars,
+ com.sap.sailing.polars.factory,
+ com.sap.sailing.server.gateway.deserialization,
  com.sap.sailing.server.gateway.deserialization.masterdata.impl,
  com.sap.sailing.server.gateway.serialization.masterdata.impl,
  org.json.simple,
diff --git a/java/com.sap.sailing.server/src/com/sap/sailing/server/RacingEventService.java b/java/com.sap.sailing.server/src/com/sap/sailing/server/RacingEventService.java
index 6547f1420cb..343ba6a7acc 100755
--- a/java/com.sap.sailing.server/src/com/sap/sailing/server/RacingEventService.java
+++ b/java/com.sap.sailing.server/src/com/sap/sailing/server/RacingEventService.java
@@ -58,6 +58,7 @@ import com.sap.sailing.domain.tracking.TrackedRegatta;
 import com.sap.sailing.domain.tracking.TrackedRegattaRegistry;
 import com.sap.sailing.domain.tracking.TrackerManager;
 import com.sap.sailing.domain.tracking.WindStore;
+import com.sap.sailing.polars.PolarDataService;
 
 /**
  * An OSGi service that can be used to track boat races using a TracTrac connector that pushes
@@ -426,7 +427,7 @@ public interface RacingEventService extends TrackedRegattaRegistry, RegattaFetch
             UUID id);
 
     CourseArea addCourseAreaWithoutReplication(UUID eventId, UUID courseAreaId, String courseAreaName);
-
+
     /**
      * Returns a mobile device's configuration.
      * @param identifier of the client (may include event)
@@ -471,11 +472,13 @@ public interface RacingEventService extends TrackedRegattaRegistry, RegattaFetch
     /**
      * Gets the start time and pass identifier for the queried race.
      */
-    Pair<TimePoint, Integer> getStartTime(String leaderboardName, String raceColumnName, String fleetName);
+    Pair<TimePoint, Integer> getStartTime(String leaderboardName, String raceColumnName, String fleetName);
 
     MongoObjectFactory getMongoObjectFactory();
     
     DomainObjectFactory getDomainObjectFactory();
     
     WindStore getWindStore();
+
+    PolarDataService getPolarDataService();
 }
diff --git a/java/com.sap.sailing.server/src/com/sap/sailing/server/impl/RacingEventServiceImpl.java b/java/com.sap.sailing.server/src/com/sap/sailing/server/impl/RacingEventServiceImpl.java
index 4df52818506..32c18951af9 100755
--- a/java/com.sap.sailing.server/src/com/sap/sailing/server/impl/RacingEventServiceImpl.java
+++ b/java/com.sap.sailing.server/src/com/sap/sailing/server/impl/RacingEventServiceImpl.java
@@ -20,9 +20,12 @@ import java.util.Map.Entry;
 import java.util.Set;
 import java.util.UUID;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.Executor;
 import java.util.concurrent.Executors;
+import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 import java.util.logging.Level;
 import java.util.logging.Logger;
@@ -61,6 +64,7 @@ import com.sap.sailing.domain.common.RegattaName;
 import com.sap.sailing.domain.common.Renamable;
 import com.sap.sailing.domain.common.ScoringSchemeType;
 import com.sap.sailing.domain.common.TimePoint;
+import com.sap.sailing.domain.common.TrackedRaceStatusEnum;
 import com.sap.sailing.domain.common.WindSource;
 import com.sap.sailing.domain.common.dto.FleetDTO;
 import com.sap.sailing.domain.common.dto.RaceColumnDTO;
@@ -115,9 +119,12 @@ import com.sap.sailing.domain.tracking.Wind;
 import com.sap.sailing.domain.tracking.WindStore;
 import com.sap.sailing.domain.tracking.WindTracker;
 import com.sap.sailing.domain.tracking.WindTrackerFactory;
+import com.sap.sailing.domain.tracking.impl.AbstractRaceChangeListener;
 import com.sap.sailing.domain.tracking.impl.DynamicTrackedRegattaImpl;
 import com.sap.sailing.expeditionconnector.ExpeditionWindTrackerFactory;
 import com.sap.sailing.operationaltransformation.Operation;
+import com.sap.sailing.polars.PolarDataService;
+import com.sap.sailing.polars.factory.PolarDataServiceFactory;
 import com.sap.sailing.server.OperationExecutionListener;
 import com.sap.sailing.server.RacingEventService;
 import com.sap.sailing.server.RacingEventServiceOperation;
@@ -222,6 +229,8 @@ public class RacingEventServiceImpl implements RacingEventService, RegattaListen
 
     private final WindStore windStore;
 
+    private final PolarDataService polarDataService;
+
     /**
      * If this service runs in the context of an OSGi environment, the activator should {@link #setBundleContext set the bundle context} on this
      * object so that service lookups become possible.
@@ -293,6 +302,13 @@ public class RacingEventServiceImpl implements RacingEventService, RegattaListen
         operationExecutionListeners = new ConcurrentHashMap<OperationExecutionListener, OperationExecutionListener>();
         courseListeners = new ConcurrentHashMap<RaceDefinition, CourseChangeReplicator>();
         persistentRegattasForRaceIDs = new ConcurrentHashMap<String, Regatta>();
+        final int THREAD_POOL_SIZE = Math.max(Runtime.getRuntime().availableProcessors(), 3);
+        // TODO find out how many executors we have on server side and how to manage them
+        Executor polarExecutor = new ThreadPoolExecutor(/* corePoolSize */THREAD_POOL_SIZE,
+        /* maximumPoolSize */THREAD_POOL_SIZE,
+        /* keepAliveTime */60, TimeUnit.SECONDS,
+        /* workQueue */new LinkedBlockingQueue<Runnable>());
+        polarDataService = PolarDataServiceFactory.createStandardPolarDataService(polarExecutor);
         this.raceLogReplicator = new RaceLogReplicator(this);
         this.raceLogScoringReplicator = new RaceLogScoringReplicator(this);
         this.mediaDB = mediaDb;
@@ -320,6 +336,11 @@ public class RacingEventServiceImpl implements RacingEventService, RegattaListen
         loadStoredDeviceConfigurations();
     }
 
+    @Override
+    public PolarDataService getPolarDataService() {
+        return polarDataService;
+    }
+
     @Override
     public com.sap.sailing.domain.base.DomainFactory getBaseDomainFactory() {
         return baseDomainFactory;
@@ -1390,11 +1411,34 @@ public class RacingEventServiceImpl implements RacingEventService, RegattaListen
                 replicate(new TrackRegatta(regatta.getRegattaIdentifier()));
                 regattaTrackingCache.put(regatta, result);
                 ensureRegattaIsObservedForDefaultLeaderboardAndAutoLeaderboardLinking(result);
+                addRaceTrackingFinishedListenerForPolarFixCache(result);
             }
             return result;
         }
     }
 
+    private void addRaceTrackingFinishedListenerForPolarFixCache(DynamicTrackedRegatta result) {
+        RaceListener raceListenerForPolarFixCacheUpdate = new RaceListener() {
+            @Override
+            public void raceRemoved(TrackedRace trackedRace) {
+                // TODO remove fixes from polar fix cache
+            }
+
+            @Override
+            public void raceAdded(final TrackedRace trackedRace) {
+                trackedRace.addListener(new AbstractRaceChangeListener() {
+                    @Override
+                    public void statusChanged(TrackedRaceStatus newStatus) {
+                        if (newStatus.getStatus() == TrackedRaceStatusEnum.FINISHED) {
+                            polarDataService.newRaceFinishedTracking(trackedRace);
+                        }
+                    }
+                });
+            }
+        };
+        result.addRaceListener(raceListenerForPolarFixCacheUpdate);
+    }
+
     @Override
     public DynamicTrackedRegatta getTrackedRegatta(com.sap.sailing.domain.base.Regatta regatta) {
         return regattaTrackingCache.get(regatta);