diff --git a/quickstep/src/com/android/quickstep/SystemUiProxy.java b/quickstep/src/com/android/quickstep/SystemUiProxy.java
index c8abd14..2543e6c 100644
--- a/quickstep/src/com/android/quickstep/SystemUiProxy.java
+++ b/quickstep/src/com/android/quickstep/SystemUiProxy.java
@@ -565,12 +565,12 @@
 
     /** Start multiple tasks in split-screen simultaneously. */
     public void startTasks(int mainTaskId, Bundle mainOptions, int sideTaskId, Bundle sideOptions,
-            @SplitConfigurationOptions.StagePosition int sidePosition,
+            @SplitConfigurationOptions.StagePosition int sidePosition, float splitRatio,
             RemoteTransitionCompat remoteTransition) {
         if (mSystemUiProxy != null) {
             try {
                 mSplitScreen.startTasks(mainTaskId, mainOptions, sideTaskId, sideOptions,
-                        sidePosition, remoteTransition.getTransition());
+                        sidePosition, splitRatio, remoteTransition.getTransition());
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call startTask");
             }
@@ -582,11 +582,11 @@
      */
     public void startTasksWithLegacyTransition(int mainTaskId, Bundle mainOptions, int sideTaskId,
             Bundle sideOptions, @SplitConfigurationOptions.StagePosition int sidePosition,
-            RemoteAnimationAdapter adapter) {
+            float splitRatio, RemoteAnimationAdapter adapter) {
         if (mSystemUiProxy != null) {
             try {
                 mSplitScreen.startTasksWithLegacyTransition(mainTaskId, mainOptions, sideTaskId,
-                        sideOptions, sidePosition, adapter);
+                        sideOptions, sidePosition, splitRatio, adapter);
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call startTasksWithLegacyTransition");
             }
diff --git a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
index c784d82..d310893 100644
--- a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
+++ b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
@@ -18,6 +18,7 @@
 
 import static com.android.launcher3.Utilities.postAsyncCallback;
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.launcher3.util.SplitConfigurationOptions.DEFAULT_SPLIT_RATIO;
 import static com.android.launcher3.util.SplitConfigurationOptions.STAGE_POSITION_BOTTOM_OR_RIGHT;
 import static com.android.launcher3.util.SplitConfigurationOptions.STAGE_POSITION_TOP_OR_LEFT;
 
@@ -30,7 +31,6 @@
 import android.view.SurfaceControl;
 import android.window.TransitionInfo;
 
-
 import androidx.annotation.Nullable;
 
 import com.android.launcher3.statehandlers.DepthController;
@@ -95,7 +95,7 @@
     public void setSecondTaskId(Task task, Consumer<Boolean> callback) {
         mSecondTask = task;
         launchTasks(mInitialTask, mSecondTask, mStagePosition, callback,
-                false /* freezeTaskList */);
+                false /* freezeTaskList */, DEFAULT_SPLIT_RATIO);
     }
 
     /**
@@ -107,14 +107,15 @@
         TaskView.TaskIdAttributeContainer[] taskIdAttributeContainers =
                 groupedTaskView.getTaskIdAttributeContainers();
         launchTasks(taskIdAttributeContainers[0].getTask(), taskIdAttributeContainers[1].getTask(),
-                taskIdAttributeContainers[0].getStagePosition(), callback, freezeTaskList);
+                taskIdAttributeContainers[0].getStagePosition(), callback, freezeTaskList,
+                groupedTaskView.getSplitRatio());
     }
 
     /**
      * @param stagePosition representing location of task1
      */
     public void launchTasks(Task task1, Task task2, @StagePosition int stagePosition,
-            Consumer<Boolean> callback, boolean freezeTaskList) {
+            Consumer<Boolean> callback, boolean freezeTaskList, float splitRatio) {
         // Assume initial task is for top/left part of screen
         final int[] taskIds = stagePosition == STAGE_POSITION_TOP_OR_LEFT
                 ? new int[]{task1.key.id, task2.key.id}
@@ -123,7 +124,7 @@
             RemoteSplitLaunchTransitionRunner animationRunner =
                     new RemoteSplitLaunchTransitionRunner(task1, task2);
             mSystemUiProxy.startTasks(taskIds[0], null /* mainOptions */, taskIds[1],
-                    null /* sideOptions */, STAGE_POSITION_BOTTOM_OR_RIGHT,
+                    null /* sideOptions */, STAGE_POSITION_BOTTOM_OR_RIGHT, splitRatio,
                     new RemoteTransitionCompat(animationRunner, MAIN_EXECUTOR,
                             ActivityThread.currentActivityThread().getApplicationThread()));
         } else {
@@ -140,7 +141,7 @@
             }
             mSystemUiProxy.startTasksWithLegacyTransition(taskIds[0], mainOpts.toBundle(),
                     taskIds[1], null /* sideOptions */, STAGE_POSITION_BOTTOM_OR_RIGHT,
-                    adapter);
+                    splitRatio, adapter);
         }
     }
 
diff --git a/quickstep/src/com/android/quickstep/views/GroupedTaskView.java b/quickstep/src/com/android/quickstep/views/GroupedTaskView.java
index 4771d1e..00f541d 100644
--- a/quickstep/src/com/android/quickstep/views/GroupedTaskView.java
+++ b/quickstep/src/com/android/quickstep/views/GroupedTaskView.java
@@ -1,5 +1,6 @@
 package com.android.quickstep.views;
 
+import static com.android.launcher3.util.SplitConfigurationOptions.DEFAULT_SPLIT_RATIO;
 import static com.android.launcher3.util.SplitConfigurationOptions.STAGE_POSITION_BOTTOM_OR_RIGHT;
 import static com.android.launcher3.util.SplitConfigurationOptions.STAGE_POSITION_TOP_OR_LEFT;
 
@@ -122,6 +123,14 @@
         invalidate();
     }
 
+    public float getSplitRatio() {
+        if (mSplitBoundsConfig != null) {
+            return mSplitBoundsConfig.appsStackedVertically
+                    ? mSplitBoundsConfig.topTaskPercent : mSplitBoundsConfig.leftTaskPercent;
+        }
+        return DEFAULT_SPLIT_RATIO;
+    }
+
     @Override
     public boolean offerTouchToChildren(MotionEvent event) {
         computeAndSetIconTouchDelegate(mIconView2, mIcon2CenterCoords, mIcon2TouchDelegate);
@@ -157,7 +166,8 @@
     @Override
     public void launchTask(@NonNull Consumer<Boolean> callback, boolean freezeTaskList) {
         getRecentsView().getSplitPlaceholder().launchTasks(mTask, mSecondaryTask,
-                STAGE_POSITION_TOP_OR_LEFT, callback, freezeTaskList);
+                STAGE_POSITION_TOP_OR_LEFT, callback, freezeTaskList,
+                getSplitRatio());
     }
 
     @Override
diff --git a/src/com/android/launcher3/util/SplitConfigurationOptions.java b/src/com/android/launcher3/util/SplitConfigurationOptions.java
index 53b1c3e..cb714b2 100644
--- a/src/com/android/launcher3/util/SplitConfigurationOptions.java
+++ b/src/com/android/launcher3/util/SplitConfigurationOptions.java
@@ -68,6 +68,11 @@
     public @interface StageType {}
     ///////////////////////////////////
 
+    /**
+     * Default split ratio for launching app pair from overview.
+     */
+    public static final float DEFAULT_SPLIT_RATIO = 0.5f;
+
     public static class SplitPositionOption {
         public final int iconResId;
         public final int textResId;