diff --git a/interface/src/avatar/MyAvatar.cpp b/interface/src/avatar/MyAvatar.cpp
index 3342db3f52..11496f727e 100755
--- a/interface/src/avatar/MyAvatar.cpp
+++ b/interface/src/avatar/MyAvatar.cpp
@@ -1925,7 +1925,7 @@ void MyAvatar::preDisplaySide(RenderArgs* renderArgs) {
     _prevShouldDrawHead = shouldDrawHead;
 }
 
-const float RENDER_HEAD_CUTOFF_DISTANCE = 0.3f;
+const float RENDER_HEAD_CUTOFF_DISTANCE = 0.47f;
 
 bool MyAvatar::cameraInsideHead(const glm::vec3& cameraPosition) const {
     return glm::length(cameraPosition - getHeadPosition()) < (RENDER_HEAD_CUTOFF_DISTANCE * getModelScale());
@@ -2096,7 +2096,7 @@ void MyAvatar::updateActionMotor(float deltaTime) {
         _actionMotorVelocity = motorSpeed * direction;
     } else {
         // we're interacting with a floor --> simple horizontal speed and exponential decay
-        _actionMotorVelocity = getSensorToWorldScale() * DEFAULT_AVATAR_MAX_WALKING_SPEED * direction;
+        _actionMotorVelocity = getSensorToWorldScale() * _walkSpeed.get() * direction;
     }
 
     float boomChange = getDriveKey(ZOOM);
@@ -2688,6 +2688,14 @@ float MyAvatar::getUserEyeHeight() const {
     return userHeight - userHeight * ratio;
 }
 
+float MyAvatar::getWalkSpeed() const {
+    return _walkSpeed.get();
+}
+
+void MyAvatar::setWalkSpeed(float value) {
+    _walkSpeed.set(value);
+}
+
 glm::vec3 MyAvatar::getPositionForAudio() {
     switch (_audioListenerMode) {
         case AudioListenerMode::FROM_HEAD:
diff --git a/interface/src/avatar/MyAvatar.h b/interface/src/avatar/MyAvatar.h
index bdbfb09060..58b49b61ff 100644
--- a/interface/src/avatar/MyAvatar.h
+++ b/interface/src/avatar/MyAvatar.h
@@ -163,6 +163,8 @@ class MyAvatar : public Avatar {
 
     Q_PROPERTY(QUuid SELF_ID READ getSelfID CONSTANT)
 
+    Q_PROPERTY(float walkSpeed READ getWalkSpeed WRITE setWalkSpeed);
+
     const QString DOMINANT_LEFT_HAND = "left";
     const QString DOMINANT_RIGHT_HAND = "right";
 
@@ -557,6 +559,9 @@ public:
 
     const QUuid& getSelfID() const { return AVATAR_SELF_ID; }
 
+    void setWalkSpeed(float value);
+    float getWalkSpeed() const;
+
 public slots:
     void increaseSize();
     void decreaseSize();
@@ -840,6 +845,9 @@ private:
 
     // height of user in sensor space, when standing erect.
     ThreadSafeValueCache<float> _userHeight { DEFAULT_AVATAR_HEIGHT };
+
+    // max unscaled forward movement speed
+    ThreadSafeValueCache<float> _walkSpeed { DEFAULT_AVATAR_MAX_WALKING_SPEED };
 };
 
 QScriptValue audioListenModeToScriptValue(QScriptEngine* engine, const AudioListenerMode& audioListenerMode);
diff --git a/scripts/system/assets/images/run.svg b/scripts/system/assets/images/run.svg
new file mode 100644
index 0000000000..0957166346
--- /dev/null
+++ b/scripts/system/assets/images/run.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" x="0px" y="0px" viewBox="0 0 100 100" enable-background="new 0 0 100 100" xml:space="preserve"><path d="M56.3,18.2c-2.6,0-28.1,0-32.5,0s-5.3,7.1,0,7.1h23.7c0.9,0,1.2,0.6,0.8,1.3c0,0-6,10.8-8.3,14.3c-2.3,3.5-1.1,9,1.7,11  C49.1,57.4,60.5,66,60.5,66c0.7,0.5,1.2,1.6,1.2,2.4c0,0,0,15.2,0,21.7c0,6.5,9.6,6.2,9.6,0c0-4.9,0-27.1,0-27.1  c0-0.8-0.5-1.9-1.2-2.5L53.8,48.5C53.2,48,53,47,53.4,46.3l10.2-17.9C63.5,28.4,58.9,18.2,56.3,18.2z M38.1,53.8l-8.6,12.1  c0,0-4.4-3.1-9.5-7.2c-5-4.1-10.9,2.8-5.8,6.8c2.6,2,6.8,5.2,10.3,8c3.6,2.8,9,3.2,12.6-2.1c5.2-7.8,8.2-12,8.2-12L38.1,53.8z   M61.2,39.8c0,0,4.8,7,6.8,10.1c2.1,3,6.7,2.3,9.8,0c3.1-2.3,6.1-4.3,8.3-6c3.6-2.7-0.1-8.6-3.9-6c-4.7,3.3-7.7,5.7-7.7,5.7  c-0.6,0.5-1.5,0.4-2-0.4L65.9,32L61.2,39.8z M61.8,7.5c-3.7,6.2,0.9,12.7,3.8,14.4c2.1,1.3,5.1,2.6,8.3-2.7s3.3-8.8-3-12.6  C68.8,5.4,64.3,3.3,61.8,7.5z"></path></svg>
\ No newline at end of file
diff --git a/scripts/system/run.js b/scripts/system/run.js
new file mode 100644
index 0000000000..054cca6d9c
--- /dev/null
+++ b/scripts/system/run.js
@@ -0,0 +1,39 @@
+"use strict";
+
+/* global Script, Tablet, MyAvatar */
+
+(function() { // BEGIN LOCAL_SCOPE
+    var WALK_SPEED = 2.6;
+    var RUN_SPEED = 4.5;
+    var MIDDLE_SPEED = (WALK_SPEED + RUN_SPEED) / 2.0;
+
+    var tablet = Tablet.getTablet("com.highfidelity.interface.tablet.system");
+    var button = tablet.addButton({
+        icon: Script.resolvePath("assets/images/run.svg"),
+        text: "RUN",
+        sortOrder: 15
+    });
+
+    function onClicked() {
+        if (MyAvatar.walkSpeed < MIDDLE_SPEED) {
+            button.editProperties({isActive: true});
+            MyAvatar.walkSpeed = RUN_SPEED;
+        } else {
+            button.editProperties({isActive: false});
+            MyAvatar.walkSpeed = WALK_SPEED;
+        }
+    }
+
+    function cleanup() {
+        button.clicked.disconnect(onClicked);
+        tablet.removeButton(button);
+    }
+
+    button.clicked.connect(onClicked);
+    if (MyAvatar.walkSpeed < MIDDLE_SPEED) {
+        button.editProperties({isActive: false});
+    } else {
+        button.editProperties({isActive: true});
+    }
+
+}());