diff --git a/src/main/java/seng302/controllers/CanvasController.java b/src/main/java/seng302/controllers/CanvasController.java
index d2e7ce02..22096b58 100644
--- a/src/main/java/seng302/controllers/CanvasController.java
+++ b/src/main/java/seng302/controllers/CanvasController.java
@@ -188,6 +188,7 @@ public class CanvasController {
     }
 
     private void updateBoatGroup(BoatGroup boatGroup) {
+        System.out.println("StreamParser.boatPositions.size()2 = " + StreamParser.boatPositions.size());
         PriorityBlockingQueue<BoatPositionPacket> movementQueue = StreamParser.boatPositions.get(boatGroup.getRaceId());
         // giving the movementQueue a 5 packet buffer to account for slightly out of order packets
         if (movementQueue.size() > 5){
diff --git a/src/main/java/seng302/controllers/Controller.java b/src/main/java/seng302/controllers/Controller.java
index bebc57fd..00397dee 100644
--- a/src/main/java/seng302/controllers/Controller.java
+++ b/src/main/java/seng302/controllers/Controller.java
@@ -1,5 +1,7 @@
 package seng302.controllers;
 
+import static seng302.models.stream.StreamParser.boatPositions;
+
 import javafx.application.Platform;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
@@ -131,6 +133,8 @@ public class Controller implements Initializable {
     public void switchToRaceView() {
         switchedToRaceView = true;
         setContentPane("/views/RaceView.fxml");
+        System.out.println("boatPositions.size()1 = " + boatPositions.size());
+        StreamParser.boatPositions.clear();
     }
 
     private void updateTeamList() {