diff --git a/api/src/org/labkey/api/exp/ExperimentRunListView.java b/api/src/org/labkey/api/exp/ExperimentRunListView.java
index 560407dd600..6dc72386c2e 100644
--- a/api/src/org/labkey/api/exp/ExperimentRunListView.java
+++ b/api/src/org/labkey/api/exp/ExperimentRunListView.java
@@ -85,7 +85,12 @@ public ExperimentRunListView(UserSchema schema, QuerySettings settings, @NotNull
 
     public static QuerySettings getRunListQuerySettings(UserSchema schema, ViewContext model, String tableName, boolean allowCustomizations)
     {
-        QuerySettings settings = schema.getSettings(model, tableName, tableName);
+        return getRunListQuerySettings(schema, model, tableName, null, allowCustomizations);
+    }
+
+    public static QuerySettings getRunListQuerySettings(UserSchema schema, ViewContext model, String tableName, @Nullable String dataRegionName, boolean allowCustomizations)
+    {
+        QuerySettings settings = schema.getSettings(model, dataRegionName != null ? dataRegionName : tableName, tableName);
         settings.getQueryDef(schema);
         settings.setBaseSort(new Sort("-RowId"));
         settings.setAllowChooseView(allowCustomizations);
@@ -107,6 +112,11 @@ protected void renderHeaderView(HttpServletRequest request, HttpServletResponse
     }
 
     public static ExperimentRunListView createView(ViewContext model, ExperimentRunType selectedType, boolean allowCustomizations)
+    {
+        return createView(model, selectedType, null, allowCustomizations);
+    }
+
+    public static ExperimentRunListView createView(ViewContext model, ExperimentRunType selectedType, @Nullable String dataRegionName, boolean allowCustomizations)
     {
         UserSchema schema = QueryService.get().getUserSchema(model.getUser(), model.getContainer(), selectedType.getSchemaName());
         if (schema == null)
@@ -115,7 +125,8 @@ public static ExperimentRunListView createView(ViewContext model, ExperimentRunT
             selectedType = ExperimentRunType.ALL_RUNS_TYPE;
             schema = QueryService.get().getUserSchema(model.getUser(), model.getContainer(), selectedType.getSchemaName());
         }
-        return new ExperimentRunListView(schema, getRunListQuerySettings(schema, model, selectedType.getTableName(), allowCustomizations), selectedType);
+        String tableName = selectedType.getTableName();
+        return new ExperimentRunListView(schema, getRunListQuerySettings(schema, model, tableName, dataRegionName, allowCustomizations), selectedType);
     }
 
     public void setShowUploadAssayRunsButton(boolean showUploadAssayRunsButton)
diff --git a/api/src/org/labkey/api/exp/api/ExperimentService.java b/api/src/org/labkey/api/exp/api/ExperimentService.java
index fd98f473a44..df052bbe503 100644
--- a/api/src/org/labkey/api/exp/api/ExperimentService.java
+++ b/api/src/org/labkey/api/exp/api/ExperimentService.java
@@ -738,6 +738,8 @@ static void validateParentAlias(Map<String, String> aliasMap, Set<String> reserv
 
     ExperimentRunListView createExperimentRunWebPart(ViewContext context, ExperimentRunType type);
 
+    ExperimentRunListView createExperimentRunWebPart(ViewContext context, ExperimentRunType type, @Nullable String dataRegionName);
+
     DbSchema getSchema();
 
     ExpProtocolApplication getExpProtocolApplication(String lsid);
diff --git a/experiment/src/org/labkey/experiment/ExperimentRunWebPartFactory.java b/experiment/src/org/labkey/experiment/ExperimentRunWebPartFactory.java
index ad267dd752e..c34d0263681 100644
--- a/experiment/src/org/labkey/experiment/ExperimentRunWebPartFactory.java
+++ b/experiment/src/org/labkey/experiment/ExperimentRunWebPartFactory.java
@@ -53,6 +53,14 @@ private String getConfiguredRunFilterName(Portal.WebPart webPart)
         return webPart.getPropertyMap().get(EXPERIMENT_RUN_FILTER);
     }
 
+    /**
+     * Create a unique data region name for the webpart.
+     */
+    private String getDataRegionName(Portal.WebPart webPart, int index)
+    {
+        return String.format("expRunWebPart_%d_%d", webPart.getIndex(), index);
+    }
+
     public static class Bean
     {
         private final Set<ExperimentRunType> _types;
@@ -106,9 +114,11 @@ public WebPartView<?> getWebPartView(@NotNull ViewContext portalCtx, @NotNull Po
                 VBox result = new VBox();
                 result.setTitle("Experiment Runs");
                 result.setFrame(WebPartView.FrameType.PORTAL);
+                int gridIndex = 0;
                 for (ExperimentRunType runType : runTypes)
                 {
-                    ExperimentRunListView runView = ExperimentService.get().createExperimentRunWebPart(new ViewContext(portalCtx), runType);
+                    // GitHub Issue 1295: give each grid a unique data region name
+                    ExperimentRunListView runView = ExperimentService.get().createExperimentRunWebPart(new ViewContext(portalCtx), runType, getDataRegionName(webPart, gridIndex++));
                     if (runType != ExperimentRunType.ALL_RUNS_TYPE)
                     {
                         runView.setTitle(runType.getDescription() + " Runs");
@@ -125,7 +135,8 @@ public WebPartView<?> getWebPartView(@NotNull ViewContext portalCtx, @NotNull Po
             selectedType = ChooseExperimentTypeBean.getBestTypeSelection(types, selectedType, protocols);
         }
 
-        ExperimentRunListView result = ExperimentService.get().createExperimentRunWebPart(new ViewContext(portalCtx), selectedType);
+        // GitHub Issue 1295: give the grid a unique data region name
+        ExperimentRunListView result = ExperimentService.get().createExperimentRunWebPart(new ViewContext(portalCtx), selectedType, getDataRegionName(webPart, 0));
         if (selectedType != ExperimentRunType.ALL_RUNS_TYPE)
         {
             result.setTitle(result.getTitle() + " (" + selectedType.getDescription() + ")");
diff --git a/experiment/src/org/labkey/experiment/api/ExperimentServiceImpl.java b/experiment/src/org/labkey/experiment/api/ExperimentServiceImpl.java
index 46490f7c156..5e97c39ce6e 100644
--- a/experiment/src/org/labkey/experiment/api/ExperimentServiceImpl.java
+++ b/experiment/src/org/labkey/experiment/api/ExperimentServiceImpl.java
@@ -2146,7 +2146,13 @@ public DbScope.Transaction ensureTransaction(Lock... locks)
     @Override
     public ExperimentRunListView createExperimentRunWebPart(ViewContext context, ExperimentRunType type)
     {
-        ExperimentRunListView view = ExperimentRunListView.createView(context, type, true);
+        return createExperimentRunWebPart(context, type, null);
+    }
+
+    @Override
+    public ExperimentRunListView createExperimentRunWebPart(ViewContext context, ExperimentRunType type, @Nullable String dataRegionName)
+    {
+        ExperimentRunListView view = ExperimentRunListView.createView(context, type, dataRegionName, true);
         view.setShowDeleteButton(true);
         view.setShowAddToRunGroupButton(true);
         view.setShowMoveRunsButton(true);