diff --git a/ScStwLibraries/headers/ScStw.hpp b/ScStwLibraries/headers/ScStw.hpp
index a05be82..46aba53 100644
--- a/ScStwLibraries/headers/ScStw.hpp
+++ b/ScStwLibraries/headers/ScStw.hpp
@@ -81,6 +81,7 @@ public:
         StopRaceCommand = 1001,
         ResetRaceCommand = 1002,
         CancelRaceCommand = 1003,
+        SetTimerDisabled = 1004,
 
         GetRaceStateCommand = 2000,
         GetRaceDetailsCommand = 2001,
@@ -120,6 +121,7 @@ public:
         CurrentStateNotVaildForOperationError = 403,
         AccessDeniedError = 401,
         NoSessionActiveError = 408,
+        ItemNotFoundError = 409,
 
         UpdateFailedError = 500,
 
diff --git a/ScStwLibraries/headers/scstwrace.h b/ScStwLibraries/headers/scstwrace.h
index 9b513dc..97cb53b 100644
--- a/ScStwLibraries/headers/scstwrace.h
+++ b/ScStwLibraries/headers/scstwrace.h
@@ -117,6 +117,8 @@ public slots:
     virtual ScStw::StatusCode reset();
     virtual ScStw::StatusCode cancel();
 
+    virtual ScStw::StatusCode setTimerDisabled(int id, bool disabled);
+
     virtual bool addTimer(ScStwTimer *timer);
 
     // getters
diff --git a/ScStwLibraries/sources/scstwrace.cpp b/ScStwLibraries/sources/scstwrace.cpp
index 6f7b30f..954c0f0 100644
--- a/ScStwLibraries/sources/scstwrace.cpp
+++ b/ScStwLibraries/sources/scstwrace.cpp
@@ -153,6 +153,18 @@ ScStw::StatusCode ScStwRace::cancel() {
     return returnCode;
 }
 
+ScStw::StatusCode ScStwRace::setTimerDisabled(int timerId, bool disabled) {
+    if(this->state != IDLE && this->state != WAITING)
+        return ScStw::CurrentStateNotVaildForOperationError;
+
+    if(timerId < 0 || timerId - 1 > this->timers.length())
+        return ScStw::ItemNotFoundError;
+
+    this->timers[timerId]->setDisabled(disabled);
+
+    return ScStw::Success;
+}
+
 void ScStwRace::handleTimerReadyStateChange(ScStwTimer::ReadyState readyState) {
 
     if(!this->competitionMode || this->state == IDLE || this->state == STOPPED || this->state == INCIDENT )