diff --git a/TODO b/TODO
index e4669ff..90132ed 100644
--- a/TODO
+++ b/TODO
@@ -1,10 +1,9 @@
 Basic:
-* Record inputs for koch lesson
-* Koch result analysis screen
 * Remember last lesson
 
 Polish:
 * Better user input
+* Better statistics on results
 * Visual styling
 * Settings info text
 * Extract UI strings into resource file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 7224df2..c826c64 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -9,7 +9,12 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".TrainingActivity" android:parentActivityName=".LevelSelectActivity"></activity>
+        <activity android:name=".TrainingResultsActivity"
+            android:parentActivityName=".LevelSelectActivity"
+            ></activity>
+        <activity
+            android:name=".TrainingActivity"
+            android:parentActivityName=".LevelSelectActivity" />
         <activity
             android:name=".LevelSelectActivity"
             android:parentActivityName=".MainActivity" />
diff --git a/app/src/main/java/es/eoinrul/ecwt/TrainingActivity.kt b/app/src/main/java/es/eoinrul/ecwt/TrainingActivity.kt
index 7ac5299..c7350ce 100644
--- a/app/src/main/java/es/eoinrul/ecwt/TrainingActivity.kt
+++ b/app/src/main/java/es/eoinrul/ecwt/TrainingActivity.kt
@@ -1,6 +1,7 @@
 package es.eoinrul.ecwt
 
 import android.app.Activity
+import android.content.Intent
 import android.os.Bundle
 import android.view.KeyEvent
 import android.view.View
@@ -10,6 +11,8 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.preference.PreferenceManager
 import kotlin.random.Random
 
+const val TRAINING_ANSWER = "es.eoinrul.ecwt.TRAINING_ANSWER"
+const val TRAINING_COPIED = "es.eoinrul.ecwt.TRAINING_COPIED"
 
 class TrainingActivity : AppCompatActivity(),
     DitDahSoundStream.StreamNotificationListener {
@@ -44,6 +47,12 @@ class TrainingActivity : AppCompatActivity(),
         super.onPause();
         mSoundPlayer?.quit()
         mSoundPlayer = null
+
+        if(mLessonStarted) {
+            // Shut down the soft keyboard
+            val imm = getSystemService(Activity.INPUT_METHOD_SERVICE) as InputMethodManager
+            imm.toggleSoftInput(InputMethodManager.SHOW_FORCED,0);
+        }
     }
 
     override fun onKeyUp(keyCode: Int, event: KeyEvent): Boolean {
@@ -67,9 +76,23 @@ class TrainingActivity : AppCompatActivity(),
     }
 
     override fun streamFinished(stream: DitDahSoundStream) {
+        // The lesson text has an extra space at the end, which we don't want to grade
+        var lessonText = mLessonText.trim()
+        // The input text has a leading space that we don't want to grade
+        var inputText = mEnteredTextView.text.trim()
+
+        val intent = Intent(this, TrainingResultsActivity::class.java).apply {
+            putExtra(TRAINING_ANSWER, lessonText)
+            putExtra(TRAINING_COPIED, inputText)
+            putExtra(TRAINING_ALPHABET, mAlphabet) // For a "retry" button
+        }
+        startActivity(intent);
     }
 
     fun onStartTrainingClicked(view : View) {
+        if(mLessonStarted)
+            return
+
         mEnteredTextView.text = " "
 
         // Bring up the soft keyboard
@@ -98,11 +121,14 @@ class TrainingActivity : AppCompatActivity(),
         }
 
         mSoundPlayer!!.enqueue(StringToSoundSequence(lessonText))
+
         mLessonStarted = true
+        mLessonText = lessonText
     }
 
     private var mAlphabet : String = ""
     private var mSoundPlayer : DitDahSoundStream? = null
     private lateinit var mEnteredTextView : TextView
     private var mLessonStarted : Boolean = false
+    private var mLessonText : String = ""
 }
diff --git a/app/src/main/java/es/eoinrul/ecwt/TrainingResultsActivity.kt b/app/src/main/java/es/eoinrul/ecwt/TrainingResultsActivity.kt
index fe7943f..221fd7e 100644
--- a/app/src/main/java/es/eoinrul/ecwt/TrainingResultsActivity.kt
+++ b/app/src/main/java/es/eoinrul/ecwt/TrainingResultsActivity.kt
@@ -1,12 +1,51 @@
 package es.eoinrul.ecwt
 
+import android.content.Intent
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import android.view.View
+import android.widget.TextView
+import kotlinx.android.synthetic.main.activity_level_select.*
+import kotlin.math.min
 
 class TrainingResultsActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_training_results)
+
+        var userInputText = intent.getStringExtra(TRAINING_COPIED).toLowerCase()
+        var correctText = intent.getStringExtra(TRAINING_ANSWER).toLowerCase()
+
+        var editDistance = levenshtein(correctText, userInputText)
+
+        var fractionCorrect : Float = (correctText.length - editDistance).toFloat() / correctText.length.toFloat()
+        var percentCorrect = if(editDistance == 0) { 100 } else { (fractionCorrect * 100.0f).toInt() }
+
+        findViewById<TextView>(R.id.resultSummary).text = "Score: " + percentCorrect + "%\nMade " + editDistance.toString() + " mistakes"
+
+        // TODO Could have a per-character breakdown here
+        // TODO Next lesson button?
+    }
+
+    fun onTryAgainButtonPressed(view : View) {
+        val intent = Intent(this, TrainingActivity::class.java).apply {
+            putExtra(TRAINING_ALPHABET, intent.getStringExtra(TRAINING_ALPHABET))
+        }
+        startActivity(intent);
+    }
+
+    private fun levenshtein(a : String, b : String) : Int {
+        if(a.isEmpty()) return b.length
+        if(b.isEmpty()) return a.length
+
+        if(a[0] == b[0]) {
+            return levenshtein(a.substring(1), b.substring(1))
+        } else {
+            var insertDistance = levenshtein(a, b.substring(1))
+            var deleteDistance = levenshtein(a.substring(1), b)
+            var substituteDistance = levenshtein(a.substring(1), b.substring(1))
+            return 1 + min(min(insertDistance, deleteDistance), substituteDistance)
+        }
     }
 }
diff --git a/app/src/main/res/layout/activity_training_results.xml b/app/src/main/res/layout/activity_training_results.xml
index 3720f6c..a6ab091 100644
--- a/app/src/main/res/layout/activity_training_results.xml
+++ b/app/src/main/res/layout/activity_training_results.xml
@@ -6,4 +6,24 @@
     android:layout_height="match_parent"
     tools:context=".TrainingResultsActivity">
 
+    <TextView
+        android:id="@+id/resultSummary"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="16dp"
+        android:layout_marginTop="16dp"
+        android:text="TextView"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <Button
+        android:id="@+id/button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="32dp"
+        android:layout_marginEnd="16dp"
+        android:onClick="onTryAgainButtonPressed"
+        android:text="Try again"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/resultSummary" />
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file