diff --git a/ScStwLibraries/headers/scstwsoundplayer.h b/ScStwLibraries/headers/scstwsoundplayer.h
index 1e977db..ac05926 100644
--- a/ScStwLibraries/headers/scstwsoundplayer.h
+++ b/ScStwLibraries/headers/scstwsoundplayer.h
@@ -42,10 +42,11 @@ public:
     explicit ScStwSoundPlayer(QObject *parent = nullptr);
 
     enum StartSound {
-        AtYourMarks,
-        Ready,
-        Start,
-        FalseStart
+        None = -1,
+        AtYourMarks = 0,
+        Ready = 1,
+        Start = 2,
+        FalseStart = 3
     };
 
 private:
diff --git a/ScStwLibraries/sources/scstwrace.cpp b/ScStwLibraries/sources/scstwrace.cpp
index 803e23a..f90f0de 100644
--- a/ScStwLibraries/sources/scstwrace.cpp
+++ b/ScStwLibraries/sources/scstwrace.cpp
@@ -58,11 +58,9 @@ ScStw::StatusCode ScStwRace::start(bool asyncronous) {
         return ScStw::CurrentStateNotVaildForOperationError;
     }
 
-    qDebug() << "[INFO][RACE] checking timers";
     if(!this->isReadyForNextState())
         return ScStw::TimersNotReadyError;
 
-    qDebug() << "[INFO][RACE] starting race";
     this->setState(PREPAIRING);
 
     if(asyncronous) {
@@ -156,6 +154,8 @@ ScStw::StatusCode ScStwRace::reset() {
     if(returnCode == ScStw::Success)
         this->setState(IDLE);
 
+    this->soundPlayer->cancel();
+
     return returnCode;
 }
 
@@ -181,6 +181,8 @@ ScStw::StatusCode ScStwRace::cancel() {
     this->soundPlayer->cancel(this->soundVolume);
     this->startDelayTimer->stop();
 
+    emit this->currentStartDelayChanged();
+
     return returnCode;
 }
 
@@ -233,7 +235,10 @@ bool ScStwRace::playSoundsAndStartTimers() {
 
         this->startDelayTimer->setInterval(minimumReadyDelay);
 
-        // wait for climbers to become ready initially
+        // wait for all climbers to be ready for the ReadyActionDelay, but at least one second continuosly
+        // the climber ready wait loop will also quit, if the climber steps of the pad
+        // -> wait for both climbers to stand on the pad for at least one second
+
         bool timerTriggered = true;
         do {
 
@@ -252,10 +257,7 @@ bool ScStwRace::playSoundsAndStartTimers() {
 
             emit this->currentStartDelayChanged();
 
-
-            qDebug() << "entering wait loop...";
             int loopExitCode = this->startWaitLoop->exec();
-            qDebug() << "wait loop exited with code " << loopExitCode;
 
             switch (loopExitCode) {
             case LoopAutomaticExit:
@@ -268,21 +270,18 @@ bool ScStwRace::playSoundsAndStartTimers() {
                 return false;
             }
 
-            qDebug() << "At end of loop: remaining time: " << this->startDelayTimer->remainingTime() << " timer triggered: " << timerTriggered << " ready for next state: " << this->isReadyForNextState();
+            //qDebug() << "At end of loop: remaining time: " << this->startDelayTimer->remainingTime() << " timer triggered: " << timerTriggered << " ready for next state: " << this->isReadyForNextState();
 
         } while(this->startDelayTimer->remainingTime() > 0 || !timerTriggered  || !this->isReadyForNextState());
 
-        qDebug() << "[RACE][DEBUG] Initial wait finished";
-
-        // wait for all climbers to be ready for the ReadyActionDelay, but at least one second continuosly
-        // the climber ready wait loop will also quit, if the climber steps of the pad
-        // -> wait for both climbers to stand on the pad for at least one second
-
         qDebug() << "[RACE][DEBUG] Wait finished, starting now!";
 
         // play ready tone
-        if(!this->soundPlayer->play(ScStwSoundPlayer::Ready, this->soundVolume))
+        if(!this->soundPlayer->play(ScStwSoundPlayer::Ready, this->soundVolume)) {
+            qDebug() << "Ready sound redturned false!";
+            this->setState(INCIDENT);
             return false;
+        }
     }
     else if(this->competitionMode) {
         // wait for climbers and manual start
@@ -297,8 +296,10 @@ bool ScStwRace::playSoundsAndStartTimers() {
     }
     else {
         qDebug() << "now playing ready sound";
-        if(!this->doDelayAndSoundOfCurrentStartState())
+        if(!this->doDelayAndSoundOfCurrentStartState()) {
+            this->cancel();
             return false;
+        }
     }
 
     qDebug() << "now in starting state";
@@ -309,7 +310,10 @@ bool ScStwRace::playSoundsAndStartTimers() {
     // play start tone
     qDebug() << "now playing start sound";
     double timeOfSoundPlaybackStart;
-    this->doDelayAndSoundOfCurrentStartState(&timeOfSoundPlaybackStart);
+    if(!this->doDelayAndSoundOfCurrentStartState(&timeOfSoundPlaybackStart)) {
+        this->setState(INCIDENT);
+        return false;
+    }
 
     // perform start
 
@@ -322,11 +326,13 @@ bool ScStwRace::playSoundsAndStartTimers() {
     }
     if(!startOk) {
         qDebug() << "[ERROR][START] error staring all timers";
+        this->setState(INCIDENT);
         return false;
     }
 
     if(!this->soundPlayer->waitForSoundFinish()) {
         qDebug() << "[ERROR][START] start sound wait error";
+        this->setState(INCIDENT);
         return false;
     }
 
@@ -529,17 +535,24 @@ void ScStwRace::enableAllTimers() {
 }
 
 QVariantList ScStwRace::getCurrentStartDelay() {
-    int nextActionDelay = 0;
+    int nextActionDelay = -1;
     double nextActionDelayProg = -1;
 
-    if(this->state == PREPAIRING || this->state == WAITING) {
+    if(this->state == WAITING && !this->isReadyForNextState()) {
+        // indicate that we are waiting for climbers and the progress shall be zero
+        nextActionDelayProg = 0;
+    }
+    else if(this->state == PREPAIRING || this->state == WAITING) {
         // get the total delay and the delay progress of the next action timer
         double remaining = this->startDelayTimer->remainingTime();
-        nextActionDelay = this->startDelayTimer->interval();;
+        nextActionDelay = this->startDelayTimer->interval();
         if(remaining < 0) {
             remaining = nextActionDelay;
         }
         nextActionDelayProg = 1 - (remaining / nextActionDelay);
+
+        if(nextActionDelayProg < 0)
+            nextActionDelayProg = 0;
     }
 
     return {
diff --git a/ScStwLibraries/sources/scstwsoundplayer.cpp b/ScStwLibraries/sources/scstwsoundplayer.cpp
index 79b82d0..be694c5 100644
--- a/ScStwLibraries/sources/scstwsoundplayer.cpp
+++ b/ScStwLibraries/sources/scstwsoundplayer.cpp
@@ -76,7 +76,7 @@ bool ScStwSoundPlayer::play(ScStwSoundPlayer::StartSound sound, double volume, d
         *timeOfStart = this->playingStartedAt;
     }
 
-    if(sound < 2)
+    if(sound < Start)
         return this->waitForSoundFinish();
 
     return true;
@@ -90,7 +90,7 @@ bool ScStwSoundPlayer::cancel(double volume) {
     this->soundEffect->stop();
     this->waitLoop->quit();
 
-    if(this->currentlyPlayingSound != 2)
+    if(this->currentlyPlayingSound != Start)
         return true;
 
     // update volume