diff --git a/rowers/dataprep.py b/rowers/dataprep.py
index 982733b7..01557032 100644
--- a/rowers/dataprep.py
+++ b/rowers/dataprep.py
@@ -428,7 +428,7 @@ def save_workout_database(f2,r,dosmooth=True,workouttype='rower',
     isbreakthrough = False
     if workouttype == 'water':
         delta,cpvalues,avgpower = datautils.getsinglecp(row.df)
-        if utils.isbreakthrough(delta,cpvalues,r.p0,r.p1,r.p2,r.p3):
+        if utils.isbreakthrough(delta,cpvalues,r.p0,r.p1,r.p2,r.p3,r.cpratio):
             isbreakthrough = True
             res = datautils.updatecp(delta,cpvalues,r)
 
diff --git a/rowers/datautils.py b/rowers/datautils.py
index 7c1d9136..298280d4 100644
--- a/rowers/datautils.py
+++ b/rowers/datautils.py
@@ -27,6 +27,7 @@ def updatecp(delta,cpvalues,r):
     r.p1 = p1[1]
     r.p2 = p1[2]
     r.p3 = p1[3]
+    r.cpratio = res[3]
 
     r.save()
 
diff --git a/rowers/forms.py b/rowers/forms.py
index 4e57a619..8b1e7622 100644
--- a/rowers/forms.py
+++ b/rowers/forms.py
@@ -131,7 +131,7 @@ class PredictedPieceForm(forms.Form):
 	)
     pieceunit = forms.ChoiceField(required=True,choices=unitchoices,
 				  initial='t',label='Unit')
-    value = forms.IntegerField(initial=10,label='Value')
+    value = forms.FloatField(initial=10,label='Value')
 
     class Meta:
 	fields = ['value','pieceunit']
diff --git a/rowers/interactiveplots.py b/rowers/interactiveplots.py
index 7200497e..b1c7bada 100644
--- a/rowers/interactiveplots.py
+++ b/rowers/interactiveplots.py
@@ -687,7 +687,7 @@ def interactive_otwcpchart(powerdf,promember=0):
     
     script, div = components(plot)
 
-    return [script,div,p1,message]
+    return [script,div,p1,ratio,message]
 
 def interactive_cpchart(thedistances,thesecs,theavpower,
 			theworkouts,promember=0):
diff --git a/rowers/models.py b/rowers/models.py
index 6922265f..1c305c70 100644
--- a/rowers/models.py
+++ b/rowers/models.py
@@ -178,6 +178,7 @@ class Rower(models.Model):
     p1 = models.FloatField(default=1.0,verbose_name="CP p2")
     p2 = models.FloatField(default=1.0,verbose_name="CP p3")
     p3 = models.FloatField(default=1.0,verbose_name="CP p4")
+    cpratio = models.FloatField(default=1.0,verbose_name="CP fit ratio")
     
     otwslack = models.IntegerField(default=0,verbose_name="OTW Power slack")
 
diff --git a/rowers/templates/otwrankings.html b/rowers/templates/otwrankings.html
index a78330e4..871d79ff 100644
--- a/rowers/templates/otwrankings.html
+++ b/rowers/templates/otwrankings.html
@@ -164,14 +164,15 @@
       <thead>
         <tr>
 	  <th> Duration</th>
-	  <th> Power </th>
+	  <th> Power (upper)</th>
+	  <th> Power</th>
         <tr>
       </thead>
       <tbody>
         {% for pred in cpredictions %}
         <tr>
 	  {% for key, value in pred.items %}
-	  {% if key == "power" %}
+	  {% if key == "power" or key == "upper" %}
 	  <td> {{ value }} W </td>
 	  {% endif %}
 	  {% if key == "duration" %}
diff --git a/rowers/utils.py b/rowers/utils.py
index 22c4680f..3fd67d94 100644
--- a/rowers/utils.py
+++ b/rowers/utils.py
@@ -76,11 +76,13 @@ def geo_distance(lat1,lon1,lat2,lon2):
     return [distance,bearing]
 
 
-def isbreakthrough(delta,cpvalues,p0,p1,p2,p3):
+def isbreakthrough(delta,cpvalues,p0,p1,p2,p3,ratio):
 
   pwr = p0/(1+delta/p2)
   pwr += p1/(1+delta/p3)
 
+  pwr *= ratio
+
   res = np.sum(cpvalues>pwr)
 
   return res>1
diff --git a/rowers/views.py b/rowers/views.py
index 68781044..bef20278 100644
--- a/rowers/views.py
+++ b/rowers/views.py
@@ -2955,14 +2955,16 @@ def otwrankings_view(request,theuser=0,
 	script = res[0]
 	div = res[1]
 	p1 = res[2]
+        ratio = res[3]
         r.p0 = p1[0]
         r.p1 = p1[1]
         r.p2 = p1[2]
         r.p3 = p1[3]
+        r.cpratio = ratio
         r.save()
         paulslope = 1
         paulintercept = 1
-	message = res[3]
+	message = res[4]
     else:
 	script = ''
 	div = '<p>No ranking pieces found.</p>'
@@ -2977,18 +2979,20 @@ def otwrankings_view(request,theuser=0,
         clean = form.is_valid()
 	value = form.cleaned_data['value']
         hourvalue,value = divmod(value,60)
+        hourvalue = int(hourvalue)
+        minutevalue = int(value)
+        value = int(60*(value-minutevalue))
         if hourvalue >= 24:
             hourvalue = 23
-	rankingdurations.append(datetime.time(minute=value,hour=hourvalue))
+	rankingdurations.append(datetime.time(minute=minutevalue,
+                                              hour=hourvalue,
+                                              second=value))
     else:
 	form = PredictedPieceForm()
 
 
-    predictions = []
     cpredictions = []
 
-
-
     for rankingduration in rankingdurations:
 	t = 3600.*rankingduration.hour
 	t += 60.*rankingduration.minute
@@ -3000,13 +3004,17 @@ def otwrankings_view(request,theuser=0,
 	pwr = p1[0]/(1+t/p1[2])
 	pwr += p1[1]/(1+t/p1[3])
 
+        
 	if pwr <= 0:
 	    pwr = 50.
 
+
         if  not np.isnan(pwr):
+            pwr2 = pwr*ratio
 	    a = {
 	        'duration':timedeltaconv(t),
-	        'power':int(pwr)}
+	        'power':int(pwr),
+                'upper':int(pwr2)}
 	    cpredictions.append(a)
 
 
@@ -3017,7 +3025,6 @@ def otwrankings_view(request,theuser=0,
 		  {'rankingworkouts':theworkouts,
 		   'interactiveplot':script,
 		   'the_div':div,
-		   'predictions':predictions,
 		   'cpredictions':cpredictions,
                    'avgpower':avgpower,
 		   'form':form,
diff --git a/rowsanda_107501 b/rowsanda_107501
index c733aeb4..623c0cb6 100644
Binary files a/rowsanda_107501 and b/rowsanda_107501 differ