Index: Ringtoets/Common/src/Ringtoets.Common.Forms/Views/FailureMechanismSectionProbabilityAssessmentRow.cs
===================================================================
diff -u -r7d3513bd9fed2d5a0381255640a5c3f31a0a6175 -r340fb4625cbca3ad4de3afed18923fc2c2d8af16
--- Ringtoets/Common/src/Ringtoets.Common.Forms/Views/FailureMechanismSectionProbabilityAssessmentRow.cs	(.../FailureMechanismSectionProbabilityAssessmentRow.cs)	(revision 7d3513bd9fed2d5a0381255640a5c3f31a0a6175)
+++ Ringtoets/Common/src/Ringtoets.Common.Forms/Views/FailureMechanismSectionProbabilityAssessmentRow.cs	(.../FailureMechanismSectionProbabilityAssessmentRow.cs)	(revision 340fb4625cbca3ad4de3afed18923fc2c2d8af16)
@@ -38,11 +38,16 @@
         /// Creates a new instance of <see cref="FailureMechanismSectionProbabilityAssessmentRow"/>.
         /// </summary>
         /// <param name="section">The failure mechanism section to use.</param>
+        /// <param name="sectionStart">The start of the section from the beginning
+        /// of the reference line in meters.</param>
+        /// <param name="sectionEnd">The end of the section from the beginning of
+        /// the reference line in meters.</param>
         /// <param name="probabilityAssessmentInput">The probability assessment input to use.</param>
         /// <exception cref="ArgumentNullException">Thrown when any input parameter is <c>null</c>.</exception>
         public FailureMechanismSectionProbabilityAssessmentRow(FailureMechanismSection section,
+                                                               double sectionStart, double sectionEnd,
                                                                ProbabilityAssessmentInput probabilityAssessmentInput)
-            : base(section, 0, 0)
+            : base(section, sectionStart, sectionEnd)
         {
             if (probabilityAssessmentInput == null)
             {
Index: Ringtoets/Common/src/Ringtoets.Common.Forms/Views/FailureMechanismSectionsProbabilityAssessmentView.cs
===================================================================
diff -u -r303f338bc9e42d1d7621666fdf83b93a11f28b64 -r340fb4625cbca3ad4de3afed18923fc2c2d8af16
--- Ringtoets/Common/src/Ringtoets.Common.Forms/Views/FailureMechanismSectionsProbabilityAssessmentView.cs	(.../FailureMechanismSectionsProbabilityAssessmentView.cs)	(revision 303f338bc9e42d1d7621666fdf83b93a11f28b64)
+++ Ringtoets/Common/src/Ringtoets.Common.Forms/Views/FailureMechanismSectionsProbabilityAssessmentView.cs	(.../FailureMechanismSectionsProbabilityAssessmentView.cs)	(revision 340fb4625cbca3ad4de3afed18923fc2c2d8af16)
@@ -73,9 +73,18 @@
         {
             currentA = probabilityAssessmentInput.A;
 
-            failureMechanismSectionsDataGridViewControl.SetDataSource(
-                sections.Select(section => new FailureMechanismSectionProbabilityAssessmentRow(section, probabilityAssessmentInput))
-                        .ToArray());
+            var rows = new List<FailureMechanismSectionProbabilityAssessmentRow>();
+            double startDistance = 0;
+            foreach (FailureMechanismSection section in sections)
+            {
+                double endDistance = startDistance + section.Length;
+
+                rows.Add(new FailureMechanismSectionProbabilityAssessmentRow(section, startDistance, endDistance, probabilityAssessmentInput));
+
+                startDistance = endDistance;
+            }
+
+            failureMechanismSectionsDataGridViewControl.SetDataSource(rows);
         }
 
         protected override void Dispose(bool disposing)
Index: Ringtoets/Common/test/Ringtoets.Common.Forms.Test/Views/FailureMechanismSectionProbabilityAssessmentRowTest.cs
===================================================================
diff -u -rc7765a155d2a99d3805285129b8253dd7e7516c5 -r340fb4625cbca3ad4de3afed18923fc2c2d8af16
--- Ringtoets/Common/test/Ringtoets.Common.Forms.Test/Views/FailureMechanismSectionProbabilityAssessmentRowTest.cs	(.../FailureMechanismSectionProbabilityAssessmentRowTest.cs)	(revision c7765a155d2a99d3805285129b8253dd7e7516c5)
+++ Ringtoets/Common/test/Ringtoets.Common.Forms.Test/Views/FailureMechanismSectionProbabilityAssessmentRowTest.cs	(.../FailureMechanismSectionProbabilityAssessmentRowTest.cs)	(revision 340fb4625cbca3ad4de3afed18923fc2c2d8af16)
@@ -40,7 +40,7 @@
             FailureMechanismSection section = GetTestFailureMechanismSection();
 
             // Call
-            TestDelegate test = () => new FailureMechanismSectionProbabilityAssessmentRow(section, null);
+            TestDelegate test = () => new FailureMechanismSectionProbabilityAssessmentRow(section, double.NaN, double.NaN, null);
 
             // Assert
             string paramName = Assert.Throws<ArgumentNullException>(test).ParamName;
@@ -53,15 +53,21 @@
             // Setup
             var random = new Random(39);
             FailureMechanismSection section = GetTestFailureMechanismSection();
+            double sectionStart = random.NextDouble();
+            double sectionEnd = random.NextDouble();
             var probabilityAssessmentInput = new TestProbabilityAssessmentInput(random.NextDouble(), random.NextDouble());
 
             // Call
-            var sectionRow = new FailureMechanismSectionProbabilityAssessmentRow(section, probabilityAssessmentInput);
+            var sectionRow = new FailureMechanismSectionProbabilityAssessmentRow(section, sectionStart, sectionEnd, probabilityAssessmentInput);
 
             // Assert
             Assert.IsInstanceOf<FailureMechanismSectionRow>(sectionRow);
 
             Assert.AreEqual(section.Name, sectionRow.Name);
+
+            Assert.AreEqual(sectionStart, sectionRow.SectionStart, sectionRow.SectionStart.GetAccuracy());
+            Assert.AreEqual(sectionEnd, sectionRow.SectionEnd, sectionRow.SectionEnd.GetAccuracy());
+
             Assert.AreEqual(section.Length, sectionRow.Length, sectionRow.Length.GetAccuracy());
 
             Assert.AreEqual(2, sectionRow.N.NumberOfDecimalPlaces);
@@ -75,7 +81,7 @@
             var random = new Random(39);
             FailureMechanismSection section = GetTestFailureMechanismSection();
             var probabilityAssessmentInput = new TestProbabilityAssessmentInput(random.NextDouble(), random.NextDouble());
-            var sectionRow = new FailureMechanismSectionProbabilityAssessmentRow(section, probabilityAssessmentInput);
+            var sectionRow = new FailureMechanismSectionProbabilityAssessmentRow(section, double.NaN, double.NaN, probabilityAssessmentInput);
 
             // Precondition
             AssertLengthEffect(probabilityAssessmentInput, section, sectionRow);
Index: Ringtoets/Common/test/Ringtoets.Common.Forms.Test/Views/FailureMechanismSectionsProbabilityAssessmentViewTest.cs
===================================================================
diff -u -rbd4c3f207fb9181e32fa15d5faaf643366d6326a -r340fb4625cbca3ad4de3afed18923fc2c2d8af16
--- Ringtoets/Common/test/Ringtoets.Common.Forms.Test/Views/FailureMechanismSectionsProbabilityAssessmentViewTest.cs	(.../FailureMechanismSectionsProbabilityAssessmentViewTest.cs)	(revision bd4c3f207fb9181e32fa15d5faaf643366d6326a)
+++ Ringtoets/Common/test/Ringtoets.Common.Forms.Test/Views/FailureMechanismSectionsProbabilityAssessmentViewTest.cs	(.../FailureMechanismSectionsProbabilityAssessmentViewTest.cs)	(revision 340fb4625cbca3ad4de3afed18923fc2c2d8af16)
@@ -309,18 +309,28 @@
         {
             Assert.AreEqual(sections.Length, sectionsDataGridViewControl.Rows.Count);
 
+            double sectionStart = 0;
             for (var i = 0; i < sectionsDataGridViewControl.Rows.Count; i++)
             {
                 FailureMechanismSection section = sections[i];
                 DataGridViewCellCollection rowCells = sectionsDataGridViewControl.Rows[i].Cells;
 
                 Assert.AreEqual(section.Name, rowCells[nameColumnIndex].Value);
+                
+                var sectionStartValue = (RoundedDouble)rowCells[sectionStartColumnIndex].Value;
+                Assert.AreEqual(sectionStart, sectionStartValue, sectionStartValue.GetAccuracy());
 
+                double sectionEnd = sectionStart + section.Length;
+                var sectionEndValue = (RoundedDouble)rowCells[sectionEndColumnIndex].Value;
+                Assert.AreEqual(sectionEnd, sectionEndValue, sectionEndValue.GetAccuracy());
+
                 var sectionLength = (RoundedDouble) rowCells[lengthColumnIndex].Value;
                 Assert.AreEqual(section.Length, sectionLength, sectionLength.GetAccuracy());
 
                 var lengthEffect = (RoundedDouble) rowCells[lengthEffectColumnIndex].Value;
                 Assert.AreEqual(probabilityAssessmentInput.GetN(section.Length), lengthEffect, lengthEffect.GetAccuracy());
+
+                sectionStart = sectionEnd;
             }
         }