diff --git a/mobile/com.sap.sailing.racecommittee.app/res/values-de/strings.xml b/mobile/com.sap.sailing.racecommittee.app/res/values-de/strings.xml
index 8aa6a821c2b..d25953c5d70 100644
--- a/mobile/com.sap.sailing.racecommittee.app/res/values-de/strings.xml
+++ b/mobile/com.sap.sailing.racecommittee.app/res/values-de/strings.xml
@@ -423,4 +423,7 @@
     <string name="send_mail">Sende Email...</string>
     <string name="data_reload_title">Daten wurden extern verändert</string>
     <string name="data_reload_message">Daten müssen neu geladen werden. Eventueller Datenverlust ist möglich.</string>
+    <string name="preference_allow_dependent_races_header">Relative Startzeit</string>
+    <string name="preference_allow_dependent_races_description">Aktiviert relative Startzeiten zwischen Rennen</string>
+    <string name="preference_dependent_races_offset_header">Standard Offset der relativen Startzeit (Minuten)</string>
 </resources>
\ No newline at end of file
diff --git a/mobile/com.sap.sailing.racecommittee.app/res/values/preferences.xml b/mobile/com.sap.sailing.racecommittee.app/res/values/preferences.xml
index af04903df68..e5dad97f7e9 100644
--- a/mobile/com.sap.sailing.racecommittee.app/res/values/preferences.xml
+++ b/mobile/com.sap.sailing.racecommittee.app/res/values/preferences.xml
@@ -81,6 +81,11 @@
     <string name="app_folder" translatable="false">racecommittee</string>
     <bool name="preference_isSendingActive_default">false</bool>
 
+    <string name="preference_allow_dependent_races_key" translatable="false">dependentRaces</string>
+    <bool name="preference_allow_dependent_races_default">false</bool>
+    <string name="preference_dependent_races_offset_key" translatable="false">dependentRacesOffset</string>
+    <integer name="preference_dependent_races_offset_default">5</integer>
+
     <string name="preference_allow_demo_key" translatable="false">allow_demo</string>
     <bool name="preference_allow_demo_default">false</bool>
     
diff --git a/mobile/com.sap.sailing.racecommittee.app/res/values/strings.xml b/mobile/com.sap.sailing.racecommittee.app/res/values/strings.xml
index c46b58fa7aa..1a993ae3d67 100644
--- a/mobile/com.sap.sailing.racecommittee.app/res/values/strings.xml
+++ b/mobile/com.sap.sailing.racecommittee.app/res/values/strings.xml
@@ -444,5 +444,8 @@
     <string name="send_mail">Send mail...</string>
     <string name="data_reload_title">Data has changed externally</string>
     <string name="data_reload_message">Data have to be reloaded. Possible data loss is possible.</string>
+    <string name="preference_allow_dependent_races_header">Relative Start Time (Minutes)</string>
+    <string name="preference_allow_dependent_races_description">Enable Relative Start Time between Races</string>
+    <string name="preference_dependent_races_offset_header">Default Relative Start Time Offset</string>
 
 </resources>
\ No newline at end of file
diff --git a/mobile/com.sap.sailing.racecommittee.app/res/xml/preference_regatta_defaults.xml b/mobile/com.sap.sailing.racecommittee.app/res/xml/preference_regatta_defaults.xml
index 17295cd827b..000bcfc00df 100644
--- a/mobile/com.sap.sailing.racecommittee.app/res/xml/preference_regatta_defaults.xml
+++ b/mobile/com.sap.sailing.racecommittee.app/res/xml/preference_regatta_defaults.xml
@@ -1,118 +1,128 @@
 <?xml version="1.0" encoding="utf-8"?>
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
 
-    <PreferenceCategory android:title="@string/settings_category_general" >
+    <PreferenceCategory android:title="@string/settings_category_general">
 
         <ListPreference
-            android:key="@string/preference_racing_procedure_override_key"
             android:defaultValue="@string/preference_racing_procedure_override_default"
+            android:key="@string/preference_racing_procedure_override_key"
             android:summary="@string/override_default_start_procedure_type_select_description"
-            android:title="@string/override_default_start_procedure_type_select_header" />
-	
-	    <ListPreference
-	        android:key="@string/preference_course_designer_override_key"
-	        android:defaultValue="@string/preference_course_designer_override_default"
-	        android:summary="@string/empty"
-	        android:title="@string/override_default_course_designer_type_select_header" />
-        
-    </PreferenceCategory>
-    
-    <PreferenceCategory android:title="RRS26" >
-        
+            android:title="@string/override_default_start_procedure_type_select_header"/>
+
         <ListPreference
+            android:defaultValue="@string/preference_course_designer_override_default"
+            android:key="@string/preference_course_designer_override_key"
+            android:title="@string/override_default_course_designer_type_select_header"/>
+
+        <CheckBoxPreference
+            android:defaultValue="@bool/preference_allow_dependent_races_default"
+            android:key="@string/preference_allow_dependent_races_key"
+            android:summary="@string/preference_allow_dependent_races_description"
+            android:title="@string/preference_allow_dependent_races_header"/>
+
+        <com.sap.sailing.racecommittee.app.ui.views.IntegerEditTextPreference
+            android:defaultValue="@integer/preference_dependent_races_offset_default"
+            android:key="@string/preference_dependent_races_offset_key"
+            android:numeric="integer"
+            android:title="@string/preference_dependent_races_offset_header"/>
+
+    </PreferenceCategory>
+
+    <PreferenceCategory android:title="RRS26">
+
+        <ListPreference
+            android:defaultValue="@string/preference_racing_procedure_classflag_default"
             android:key="@string/preference_racing_procedure_rrs26_classflag_key"
-            android:defaultValue="@string/preference_racing_procedure_classflag_default"
-            android:title="@string/preference_racing_procedure_classflag_header"
-            android:summary="@string/empty" />
-        
+            android:summary="@string/empty"
+            android:title="@string/preference_racing_procedure_classflag_header"/>
+
         <CheckBoxPreference
-            android:key="@string/preference_racing_procedure_rrs26_hasxray_key"
             android:defaultValue="@bool/preference_racing_procedure_rrs26_hasxray_default"
-            android:title="@string/preference_racing_procedure_hasxray_header"
-            android:summary="@string/preference_racing_procedure_hasxray_description" />
-        
-	    <com.sap.sailing.racecommittee.app.ui.views.FixedMultiSelectListPreference
-	        android:key="@string/preference_racing_procedure_rrs26_startmode_flags_key"
-	        android:defaultValue="@array/preference_racing_procedure_rrs26_startmode_flags_default"
-	        android:title="@string/preference_racing_procedure_rrs26_startmode_flags_header"
-	        android:summary="@string/empty" />
-        
+            android:key="@string/preference_racing_procedure_rrs26_hasxray_key"
+            android:summary="@string/preference_racing_procedure_hasxray_description"
+            android:title="@string/preference_racing_procedure_hasxray_header"/>
+
+        <com.sap.sailing.racecommittee.app.ui.views.FixedMultiSelectListPreference
+            android:defaultValue="@array/preference_racing_procedure_rrs26_startmode_flags_default"
+            android:key="@string/preference_racing_procedure_rrs26_startmode_flags_key"
+            android:summary="@string/empty"
+            android:title="@string/preference_racing_procedure_rrs26_startmode_flags_header"/>
+
     </PreferenceCategory>
-        
-    <PreferenceCategory android:title="Gate Start" >
-        
+
+    <PreferenceCategory android:title="Gate Start">
+
         <ListPreference
+            android:defaultValue="@string/preference_racing_procedure_classflag_default"
             android:key="@string/preference_racing_procedure_gatestart_classflag_key"
-            android:defaultValue="@string/preference_racing_procedure_classflag_default"
-            android:title="@string/preference_racing_procedure_classflag_header"
-            android:summary="@string/empty" />
-        
+            android:summary="@string/empty"
+            android:title="@string/preference_racing_procedure_classflag_header"/>
+
         <CheckBoxPreference
-            android:key="@string/preference_racing_procedure_gatestart_hasxray_key"
             android:defaultValue="@bool/preference_racing_procedure_gatestart_hasxray_default"
-            android:title="@string/preference_racing_procedure_hasxray_header"
-            android:summary="@string/preference_racing_procedure_hasxray_description" />
-        
+            android:key="@string/preference_racing_procedure_gatestart_hasxray_key"
+            android:summary="@string/preference_racing_procedure_hasxray_description"
+            android:title="@string/preference_racing_procedure_hasxray_header"/>
+
         <CheckBoxPreference
-            android:key="@string/preference_racing_procedure_gatestart_haspathfinder_key"
             android:defaultValue="@bool/preference_racing_procedure_gatestart_haspathfinder_default"
-            android:title="@string/preference_racing_procedure_gatestart_haspathfinder_header"
-            android:summary="@string/preference_racing_procedure_gatestart_haspathfinder_description" />
-        
+            android:key="@string/preference_racing_procedure_gatestart_haspathfinder_key"
+            android:summary="@string/preference_racing_procedure_gatestart_haspathfinder_description"
+            android:title="@string/preference_racing_procedure_gatestart_haspathfinder_header"/>
+
         <CheckBoxPreference
-            android:key="@string/preference_racing_procedure_gatestart_hasadditionalgolfdowntime_key"
             android:defaultValue="@bool/preference_racing_procedure_gatestart_hasadditionalgolfdowntime_default"
-            android:title="@string/preference_racing_procedure_gatestart_hasadditionalgolfdowntime_header"
-            android:summary="@string/preference_racing_procedure_gatestart_hasadditionalgolfdowntime_description" />
-        
+            android:key="@string/preference_racing_procedure_gatestart_hasadditionalgolfdowntime_key"
+            android:summary="@string/preference_racing_procedure_gatestart_hasadditionalgolfdowntime_description"
+            android:title="@string/preference_racing_procedure_gatestart_hasadditionalgolfdowntime_header"/>
+
     </PreferenceCategory>
-    
-    <PreferenceCategory android:title="ESS Start" >
-        
+
+    <PreferenceCategory android:title="ESS Start">
+
         <ListPreference
+            android:defaultValue="@string/preference_racing_procedure_classflag_default"
             android:key="@string/preference_racing_procedure_ess_classflag_key"
-            android:defaultValue="@string/preference_racing_procedure_classflag_default"
-            android:title="@string/preference_racing_procedure_classflag_header"
-            android:summary="@string/empty" />
-        
+            android:summary="@string/empty"
+            android:title="@string/preference_racing_procedure_classflag_header"/>
+
         <CheckBoxPreference
-            android:key="@string/preference_racing_procedure_ess_hasxray_key"
             android:defaultValue="@bool/preference_racing_procedure_ess_hasxray_default"
-            android:title="@string/preference_racing_procedure_hasxray_header"
-            android:summary="@string/preference_racing_procedure_hasxray_description" />
-        
+            android:key="@string/preference_racing_procedure_ess_hasxray_key"
+            android:summary="@string/preference_racing_procedure_hasxray_description"
+            android:title="@string/preference_racing_procedure_hasxray_header"/>
+
     </PreferenceCategory>
-    
-    <PreferenceCategory android:title="Basic Start" >
-        
+
+    <PreferenceCategory android:title="Basic Start">
+
         <ListPreference
+            android:defaultValue="@string/preference_racing_procedure_classflag_default"
             android:key="@string/preference_racing_procedure_basic_classflag_key"
-            android:defaultValue="@string/preference_racing_procedure_classflag_default"
-            android:title="@string/preference_racing_procedure_classflag_header"
-            android:summary="@string/empty" />
-        
+            android:summary="@string/empty"
+            android:title="@string/preference_racing_procedure_classflag_header"/>
+
         <CheckBoxPreference
-            android:key="@string/preference_racing_procedure_basic_hasxray_key"
             android:defaultValue="@bool/preference_racing_procedure_basic_hasxray_default"
-            android:title="@string/preference_racing_procedure_hasxray_header"
-            android:summary="@string/preference_racing_procedure_hasxray_description" />
-        
+            android:key="@string/preference_racing_procedure_basic_hasxray_key"
+            android:summary="@string/preference_racing_procedure_hasxray_description"
+            android:title="@string/preference_racing_procedure_hasxray_header"/>
+
     </PreferenceCategory>
 
-    <PreferenceCategory android:title="League Start" >
+    <PreferenceCategory android:title="League Start">
 
         <ListPreference
-            android:key="@string/preference_racing_procedure_league_classflag_key"
             android:defaultValue="@string/preference_racing_procedure_classflag_default"
-            android:title="@string/preference_racing_procedure_classflag_header"
-            android:summary="@string/empty" />
+            android:key="@string/preference_racing_procedure_league_classflag_key"
+            android:summary="@string/empty"
+            android:title="@string/preference_racing_procedure_classflag_header"/>
 
         <CheckBoxPreference
-            android:key="@string/preference_racing_procedure_league_hasxray_key"
             android:defaultValue="@bool/preference_racing_procedure_league_hasxray_default"
-            android:title="@string/preference_racing_procedure_hasxray_header"
-            android:summary="@string/preference_racing_procedure_hasxray_description" />
+            android:key="@string/preference_racing_procedure_league_hasxray_key"
+            android:summary="@string/preference_racing_procedure_hasxray_description"
+            android:title="@string/preference_racing_procedure_hasxray_header"/>
 
     </PreferenceCategory>
-
 </PreferenceScreen>
\ No newline at end of file
diff --git a/mobile/com.sap.sailing.racecommittee.app/src/com/sap/sailing/racecommittee/app/ui/fragments/preference/RegattaPreferenceFragment.java b/mobile/com.sap.sailing.racecommittee.app/src/com/sap/sailing/racecommittee/app/ui/fragments/preference/RegattaPreferenceFragment.java
index 7e2f96a7103..0443a50abfb 100644
--- a/mobile/com.sap.sailing.racecommittee.app/src/com/sap/sailing/racecommittee/app/ui/fragments/preference/RegattaPreferenceFragment.java
+++ b/mobile/com.sap.sailing.racecommittee.app/src/com/sap/sailing/racecommittee/app/ui/fragments/preference/RegattaPreferenceFragment.java
@@ -105,6 +105,7 @@ public class RegattaPreferenceFragment extends BasePreferenceFragment {
     private void setupGeneral() {
         setupRacingProcedureTypePreference();
         setupCourseDesignerTypePreference();
+        setupDependentRacesPreference();
     }
 
     private void setupRacingProcedureTypePreference() {
@@ -139,6 +140,10 @@ public class RegattaPreferenceFragment extends BasePreferenceFragment {
         bindPreferenceSummaryToValue(preference);
     }
 
+    private void setupDependentRacesPreference() {
+        bindPreferenceSummaryToInteger(findPreference(R.string.preference_dependent_races_offset_key));
+    }
+
     private void setupRRS26StartmodeFlagsList() {
         MultiSelectListPreference preference = findPreference(R.string.preference_racing_procedure_rrs26_startmode_flags_key);
         List<String> flags = new ArrayList<>();