diff --git a/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionPumpkinTechKO.java b/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionPumpkinTechKO.java
index 313cbff..21e1d90 100644
--- a/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionPumpkinTechKO.java
+++ b/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionPumpkinTechKO.java
@@ -20,6 +20,7 @@ public class WinconditionPumpkinTechKO extends Wincondition {
     private static final World WORLD = Bukkit.getWorlds().get(0);
     private static final Material PUMPKIN_LANTERN = SWItem.getMaterial("JACK_O_LANTERN");
     private BukkitTask task;
+    private static boolean running = false;
 
     public WinconditionPumpkinTechKO(){
         super(Config.PumpkinTechKO, EnumSet.of(FightState.PRE_RUNNING, FightState.RUNNING));
@@ -43,6 +44,9 @@ public class WinconditionPumpkinTechKO extends Wincondition {
     }
 
     private static void recursiveCheck(){
+        if(running)
+            return;
+        running = true;
         teamRedPumpkins = getPumpkins(Config.TeamRedCornerX,
                 Config.TeamRedCornerY,
                 Config.TeamRedCornerZ,
@@ -58,6 +62,7 @@ public class WinconditionPumpkinTechKO extends Wincondition {
 
         checkKO(Fight.getRedTeam(), teamRedPumpkins);
         checkKO(Fight.getBlueTeam(), teamBluePumpkins);
+        running = false;
     }
 
     private static int getPumpkins(int minX, int minY, int minZ, int maxX, int maxY, int maxZ){
diff --git a/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionRelativePercent.java b/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionRelativePercent.java
index 0dc010b..8f7bf08 100644
--- a/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionRelativePercent.java
+++ b/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionRelativePercent.java
@@ -61,6 +61,7 @@ public class WinconditionRelativePercent extends Wincondition{
         private final FightTeam team;
         private final int blockCount;
         private final BukkitTask task;
+        private boolean running = false;
 
         private int currentBlocks;
 
@@ -70,8 +71,12 @@ public class WinconditionRelativePercent extends Wincondition{
             this.currentBlocks = blockCount;
 
             task = Bukkit.getScheduler().runTaskTimerAsynchronously(FightSystem.getPlugin(), () -> {
+                if(running)
+                    return;
+                running = true;
                 currentBlocks = currentBlocks();
                 checkPercentDefeat();
+                running = false;
             }, 400, 400);
         }
 
diff --git a/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionTechKO.java b/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionTechKO.java
index 702fee7..b7c0651 100644
--- a/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionTechKO.java
+++ b/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionTechKO.java
@@ -31,6 +31,7 @@ public class WinconditionTechKO extends ListenerWincondition {
     private TechKOCountdown smallerZcountdown = null;
     private TechKOCountdown biggerZcountdown = null;
     private BukkitTask task;
+    private boolean running = false;
 
     /**
      * Works only for z-Axis fight direction for performance reasons
@@ -59,6 +60,10 @@ public class WinconditionTechKO extends ListenerWincondition {
     }
 
     private void run(){
+        if(running)
+            return;
+        running = true;
+
         for(TNTPrimed tnt : world.getEntitiesByClass(TNTPrimed.class)){
             int id = tnt.getEntityId();
             boolean smallerZ = tnt.getLocation().getZ() < toggle;
@@ -87,6 +92,7 @@ public class WinconditionTechKO extends ListenerWincondition {
 
         smallerZtime--;
         biggerZtime--;
+        running = false;
     }
 
     private FightTeam smallerTeam(){
diff --git a/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionWaterTechKO.java b/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionWaterTechKO.java
index 22d14e0..3d33f10 100644
--- a/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionWaterTechKO.java
+++ b/FightSystem_Main/src/de/steamwar/fightsystem/winconditions/WinconditionWaterTechKO.java
@@ -19,6 +19,7 @@ public class WinconditionWaterTechKO extends Wincondition {
     private static final World WORLD = Bukkit.getWorlds().get(0);
 
     private BukkitTask task;
+    private boolean running = false;
 
     public WinconditionWaterTechKO() {
         super(Config.WaterTechKO, EnumSet.of(FightState.PRE_RUNNING, FightState.RUNNING));
@@ -44,13 +45,16 @@ public class WinconditionWaterTechKO extends Wincondition {
     }
 
     private void checkEmpty(FightTeam team, int teamWater){
-        if(teamWater == 0 && FightSystem.getFightState() != FightState.SPECTATE){
+        if(teamWater == 0){
             Bukkit.broadcastMessage(FightSystem.PREFIX + "§eDas Team " + team.getColoredName() + " §eist Tech K.O.!");
             Bukkit.getScheduler().runTask(FightSystem.getPlugin(), () -> FightSystem.setSpectateState(Fight.getOpposite(team), "WaterTechKO"));
         }
     }
 
     private void checkTask() {
+        if(running)
+            return;
+        running = true;
         teamRedWater = calcWater(
                 Config.TeamRedCornerX,
                 Config.TeamRedCornerY,
@@ -68,6 +72,7 @@ public class WinconditionWaterTechKO extends Wincondition {
 
         checkEmpty(Fight.getRedTeam(), teamRedWater);
         checkEmpty(Fight.getBlueTeam(), teamBlueWater);
+        running = false;
     }
 
     private int calcWater(int minX, int minY, int minZ, int maxX, int maxY, int maxZ){