diff --git a/rowers/templates/oterankings.html b/rowers/templates/oterankings.html
new file mode 100644
index 00000000..9fdc910d
--- /dev/null
+++ b/rowers/templates/oterankings.html
@@ -0,0 +1,232 @@
+{% extends "base.html" %}
+{% load staticfiles %}
+{% load rowerfilters %}
+
+{% block scripts %}
+{% include "monitorjobs.html" %}
+{% endblock %}
+
+{% block title %}Workouts{% endblock %}
+
+{% block content %}
+
+	<script type="text/javascript" src="/static/js/bokeh-0.12.3.min.js"></script>
+	<script async="true" type="text/javascript">
+    Bokeh.set_log_level("info");
+	</script>
+
+	{{ interactiveplot |safe }}
+
+    <script>
+    // Set things up to resize the plot on a window resize. You can play with
+    // the arguments of resize_width_height() to change the plot's behavior.
+    var plot_resize_setup = function () {
+        var plotid = Object.keys(Bokeh.index)[0]; // assume we have just one plot
+        var plot = Bokeh.index[plotid];
+        var plotresizer = function() {
+            // arguments: use width, use height, maintain aspect ratio
+            plot.resize_width_height(true, true, false);
+        };
+        window.addEventListener('resize', plotresizer);
+        plotresizer();
+    };
+    window.addEventListener('load', plot_resize_setup);
+    </script>
+    <style>
+    /* Need this to get the page in "desktop mode"; not having an infinite height.*/
+    html, body {height: 100%; margin:5px;}
+    </style>
+
+
+<div id="title" class="grid_12 alpha">
+  <div class="grid_10 alpha">
+    {% if theuser %}
+    <h3>{{ theuser.first_name }}'s Ranking Pieces</h3>
+    {% else %}
+    <h3>{{ user.first_name }}'s Ranking Pieces</h3>
+    {% endif %}
+  </div>
+  <div class="grid_2 omega">
+    {% if user.is_authenticated and user|is_manager %}
+    <div class="grid_2 alpha dropdown">
+      <button class="grid_2 alpha button green small dropbtn">
+        Change Rower
+      </button>
+      <div class="dropdown-content">
+        {% for member in user|team_members %}
+        {% if workouttype == 'water' %}
+        <a class="button green small" href="/rowers/{{ member.id }}/otw-bests/{{ startdate|date:"Y-m-d" }}/{{ enddate|date:"Y-m-d" }}">{{ member.first_name }} {{ member.last_name }}</a>
+        {% else %}
+        <a class="button green small" href="/rowers/{{ member.id }}/ote-ranking/{{ startdate|date:"Y-m-d" }}/{{ enddate|date:"Y-m-d" }}">{{ member.first_name }} {{ member.last_name }}</a>
+        {% endif %}
+        {% endfor %}
+    </div>
+    {% else %}
+    &nbsp;
+    {% endif %}
+  </div>
+</div>
+
+<div id="summary" class="grid_6 alpha">
+	<p>Summary for {{ theuser.first_name }} {{ theuser.last_name }}
+		between {{ startdate|date }} and {{ enddate|date }}</p>
+
+	<p>Direct link for other users:
+          {% if workouttype == 'water' %}
+	  <a href="/rowers/{{ id }}/otw-bests/{{ startdate|date:"Y-m-d" }}/{{ enddate|date:"Y-m-d" }}">https://rowsandall.com/rowers/{{ id }}/otw-bests/{{ startdate|date:"Y-m-d" }}/{{ enddate|date:"Y-m-d" }}</a>
+          {% else %}
+          <a href="/rowers/{{ id }}/ote-ranking/{{ startdate|date:"Y-m-d" }}/{{ enddate|date:"Y-m-d" }}">https://rowsandall.com/rowers/{{ id }}/ote-ranking/{{ startdate|date:"Y-m-d" }}/{{ enddate|date:"Y-m-d" }}</a>
+          {% endif %}
+	</p>
+
+        <p>The table gives the efforts you marked as Ranking Piece.
+          The graph shows the best segments from those pieces, plotted as
+          average power (over the segment) vs the duration of the segment/
+          In other words: How long you can hold that power.
+        </p>
+
+        <p>When you change the date range, the algorithm calculates new
+          parameters in a background process. You may have to reload the
+          page to get an updated prediction.</p>
+<p>At the bottom of the page, you will find predictions derived from the model.</p>
+</div>
+<div id="form" class="grid_6 omega">
+	<p>Use this form to select a different date range:</p>
+	<p>
+	Select start and end date for a date range:
+	<div class="grid_4 alpha">
+
+	<form enctype="multipart/form-data" action="" method="post">
+
+        	<table>
+            	{{ dateform.as_table }}
+        	</table>
+        	{% csrf_token %}
+	</div>
+	<div class="grid_2 omega">
+        <input name='daterange' class="button green" type="submit" value="Submit">	</form>
+	</div>
+	<div class="grid_4 alpha">
+	<form enctype="multipart/form-data" action="" method="post">
+	Or use the last {{ deltaform }} days.
+	</div>
+	<div class="grid_2 omega">
+	{% csrf_token %}
+        <input name='datedelta' class="button green" type="submit" value="Submit">
+    	</form>
+	</div>
+</div>
+
+
+
+<div id="theplot" class="grid_12 alpha">
+
+<h2>Critical Power Plot</h2>
+
+    {{ the_div|safe }}
+
+</div>
+
+<div class="grid_12 alpha">
+
+<h2>Ranking Piece Results</h2>
+
+	{% if rankingworkouts %}
+
+	<table width="70%" class="listtable">
+	<thead>
+	<tr>
+		<th> Distance</th>
+		<th> Duration</th>
+		<th> Avg Power</th>
+		<th> Date</th>
+		<th> Avg HR </th>
+		<th> Max HR </th>
+		<th> Edit</th>
+	<tr>
+	</thead>
+	<tbody>
+	{% for workout in rankingworkouts %}
+		<tr>
+			<td> {{ workout.distance }} m</td>
+			<td> {{ workout.duration |durationprint:"%H:%M:%S.%f" }} </td>
+                        <td> {{ avgpower|lookup:workout.id }} W</td>
+			<td> {{ workout.date }} </td>
+			<td> {{ workout.averagehr }} </td>
+			<td> {{ workout.maxhr }} </td>
+			<td> 
+	<a href="/rowers/workout/{{ workout.id }}/edit">{{ workout.name }}</a> </td>
+
+		</tr>
+	
+			{% endfor %}
+		</tbody>
+		</table>
+	{% else %}
+		<p> No ranking workouts found </p>
+	{% endif %}
+
+</div>
+
+<div id="predictions" class="grid_12 alpha">
+  <h2>Pace predictions for Ranking Pieces</h2>
+
+  <p>Add non-ranking piece using the form. The piece will be added in the prediction tables below. </p>
+
+
+
+  <div id="cpmodel" class="grid_6 alpha">
+    <table width="90%" class="listtable">
+      <thead>
+        <tr>
+	  <th> Duration</th>
+          <th> Distance</th>
+	  <th> Pace (upper)</th>
+	  <th> Power &nbsp;&nbsp;&nbsp;</th>
+	  <th> Power (upper)</th>
+        <tr>
+      </thead>
+      <tbody>
+        {% for pred in cpredictions %}
+        <tr>
+	  {% for key, value in pred.items %}
+	  {% if key == "power" or key == "upper" %}
+	  <td> {{ value }} W </td>
+	  {% endif %}
+	  {% if key == "duration" %}
+	  <td> {{ value |deltatimeprint }} </td>
+	  {% endif %}
+          {% if key == "distance" %}
+          <td> {{ value }} m </td>
+          {% endif %}
+          {% if key == 'pace' %}
+          <td> {{ value|paceprint }}</td>
+          {% endif %}
+	  {% endfor %}
+        </tr>
+        {% endfor %}
+      </tbody>
+    </table>
+  
+  </div>
+  
+  <div class="grid_3">
+    <form enctype="multipart/form-data" action="{{ formloc }}" method="post">
+      {{ form.value }} {{ form.pieceunit }}	
+      
+      {% csrf_token %}
+  </div>
+  <div class="grid_1">
+    minutes
+  </div>
+  <div class="grid_2 omega">
+    <input name="piece" class="button green"
+           action=""
+	   type="submit" value="Add">
+  </form>
+  </div>
+
+
+</div>
+
+{% endblock %}
diff --git a/rowers/views.py b/rowers/views.py
index 8fe5e197..13c9cee9 100644
--- a/rowers/views.py
+++ b/rowers/views.py
@@ -3779,6 +3779,8 @@ def oterankings_view(request,theuser=0,
     rankingdurations.append(datetime.time(hour=1))
     rankingdurations.append(datetime.time(hour=1,minute=15))
 
+    rankingdistances = [100,500,1000,2000,5000,6000,10000,21097,42195,100000]
+    
     thedistances = []
     theworkouts = []
     thesecs = []
@@ -3874,21 +3876,29 @@ def oterankings_view(request,theuser=0,
 	form = PredictedPieceForm(request.POST)
         clean = form.is_valid()
 	value = form.cleaned_data['value']
-        hourvalue,value = divmod(value,60)
+        hourvalue,tvalue = divmod(value,60)
         hourvalue = int(hourvalue)
-        minutevalue = int(value)
-        value = int(60*(value-minutevalue))
+        minutevalue = int(tvalue)
+        tvalue = int(60*(tvalue-minutevalue))
         if hourvalue >= 24:
             hourvalue = 23
-	rankingdurations.append(datetime.time(minute=minutevalue,
-                                              hour=hourvalue,
-                                              second=value))
+        pieceunit = form.cleaned_data['pieceunit']
+        if pieceunit == 'd':
+            rankingdistances.append(value)
+        else:
+	    rankingdurations.append(datetime.time(
+                minute=minutevalue,
+                hour=hourvalue,
+                second=tvalue
+            ))
     else:
 	form = PredictedPieceForm()
 
 
     cpredictions = []
 
+
+
     for rankingduration in rankingdurations:
 	t = 3600.*rankingduration.hour
 	t += 60.*rankingduration.minute
@@ -3900,6 +3910,9 @@ def oterankings_view(request,theuser=0,
 	pwr = p1[0]/(1+t/p1[2])
 	pwr += p1[1]/(1+t/p1[3])
 
+        velo = (pwr/2.8)**(1./3.)
+        p = 500./velo
+        d = t*velo
         
 	if pwr <= 0:
 	    pwr = 50.
@@ -3912,16 +3925,78 @@ def oterankings_view(request,theuser=0,
                 pwr2 = pwr
 
             a = {
+                'distance':int(d),
 	        'duration':timedeltaconv(t),
 	        'power':int(pwr),
-                'upper':int(pwr2)}
+                'upper':int(pwr2),
+                'pace':timedeltaconv(p)}
+
 	    cpredictions.append(a)
 
 
-    del form.fields["pieceunit"]
+    # initiation - get 10 min power, then use Paul's law
+
+    t_10 = 600.
+    power_10 = p1[0]/(1+t_10/p1[2])
+    power_10 += p1[1]/(1+t_10/p1[3])
+
+    velo_10 = (power_10/2.8)**(1./3.)
+    pace_10 = 500./velo_10
+    distance_10 = t_10*velo_10
+
+    paulslope = 5. 
+    
+    for rankingdistance in rankingdistances:
+
+        delta = paulslope * np.log(rankingdistance/distance_10)/np.log(2)
+        
+        
+        p = pace_10+delta
+        velo = 500./p
+        t = rankingdistance/velo
+        
+	pwr2 = p1[0]/(1+t/p1[2])
+	pwr2 += p1[1]/(1+t/p1[3])
+        pwr2 *= ratio
+
+	if pwr2 <= 0:
+	    pwr2 = 50.
+	
+	velo2 = (pwr2/2.8)**(1./3.)
+
+	if np.isnan(velo2) or velo2 <= 0:
+	    velo2 = 1.0
+	    
+	t2 = rankingdistance/velo2
+	
+	pwr3 = p1[0]/(1+t2/p1[2])
+	pwr3 += p1[1]/(1+t2/p1[3])
+        pwr3 *= ratio
+
+        
+	if pwr3 <= 0:
+	    pwr3 = 50.
+	
+	velo3 = (pwr3/2.8)**(1./3.)
+	if np.isnan(velo3) or velo3 <= 0:
+	    velo3 = 1.0
+	    
+	t3 = rankingdistance/velo3
+	p3 = 500./velo3
+
+	a = {
+            'distance':rankingdistance,
+	    'duration':timedeltaconv(t3),
+	    'power':'--',
+	    'upper':int(pwr3),
+            'pace':timedeltaconv(p3)}
+
+        cpredictions.append(a)
+
+        #    del form.fields["pieceunit"]
 
     messages.error(request,message)
-    return render(request, 'otwrankings.html',
+    return render(request, 'oterankings.html',
 		  {'rankingworkouts':theworkouts,
 		   'interactiveplot':script,
 		   'the_div':div,
diff --git a/static/img/image.png b/static/img/image.png
new file mode 100644
index 00000000..d6acd417
Binary files /dev/null and b/static/img/image.png differ