diff --git a/rowers/interactiveplots.py b/rowers/interactiveplots.py
index 3e782204..d1e64a9b 100644
--- a/rowers/interactiveplots.py
+++ b/rowers/interactiveplots.py
@@ -2344,6 +2344,9 @@ def interactive_comparison_chart(id1=0,id2=0,xparam='distance',yparam='spm',
 	data2 
 	)
 
+    ymean1 = data1['y1'].mean()
+    ymean2 = data2['y2'].mean()
+    
     # create interactive plot
     plot = Figure(x_axis_type=x_axis_type,y_axis_type=y_axis_type,
 		  tools=TOOLS,
@@ -2412,6 +2415,25 @@ def interactive_comparison_chart(id1=0,id2=0,xparam='distance',yparam='spm',
     plot.xaxis.axis_label = axlabels[xparam]
     plot.yaxis.axis_label = axlabels[yparam]
 
+    ylabel1 = Label(x=100,y=90,x_units='screen',y_units='screen',
+                   text=axlabels[yparam]+": {ymean1:6.2f}".format(
+                       ymean1=ymean1
+                       ),
+                   background_fill_alpha=.7,
+                   background_fill_color='white',
+                   text_color='blue'
+                   )
+    ylabel2 = Label(x=100,y=110,x_units='screen',y_units='screen',
+                   text=axlabels[yparam]+": {ymean2:6.2f}".format(
+                       ymean2=ymean2
+                       ),
+                   background_fill_alpha=.7,
+                   background_fill_color='white',
+                   text_color='red'
+                   )
+    plot.add_layout(ylabel1)
+    plot.add_layout(ylabel2)
+
     if xparam == 'time':
 	plot.xaxis[0].formatter = DatetimeTickFormatter(
 		hours = ["%H"],