diff --git a/app/controllers/request_for_comments_controller.rb b/app/controllers/request_for_comments_controller.rb
index eb2305cc..fca5c99b 100644
--- a/app/controllers/request_for_comments_controller.rb
+++ b/app/controllers/request_for_comments_controller.rb
@@ -11,14 +11,45 @@ class RequestForCommentsController < ApplicationController
   # GET /request_for_comments
   # GET /request_for_comments.json
   def index
-    @search = RequestForComment.last_per_user(2).search(params[:q])
+    @search = RequestForComment
+                  .last_per_user(2)
+                  .joins('join "submissions" s on s.id = request_for_comments.submission_id
+                          left outer join "files" f on f.context_id = s.id
+                          left outer join "comments" on comments.file_id = f.id')
+                  .group('request_for_comments.id, request_for_comments.user_id, request_for_comments.exercise_id,
+                          request_for_comments.file_id, request_for_comments.question, request_for_comments.created_at,
+                          request_for_comments.updated_at, request_for_comments.user_type, request_for_comments.solved,
+                          request_for_comments.submission_id, request_for_comments.row_number') # ugly, but rails wants it this way
+                  .select('request_for_comments.*, max(comments.updated_at) as last_comment')
+                  .search(params[:q])
     @request_for_comments = @search.result.order('created_at DESC').paginate(page: params[:page])
     authorize!
   end
 
   def get_my_comment_requests
-    @search = RequestForComment.where(user_id: current_user.id).order('created_at DESC').search(params[:q])
-    @request_for_comments = @search.result.paginate(page: params[:page])
+    @search = RequestForComment
+                  .where(user_id: current_user.id)
+                  .joins('join "submissions" s on s.id = request_for_comments.submission_id
+                          left outer join "files" f on f.context_id = s.id
+                          left outer join "comments" on comments.file_id = f.id')
+                  .group('request_for_comments.id')
+                  .select('request_for_comments.*, max(comments.updated_at) as last_comment')
+                  .search(params[:q])
+    @request_for_comments = @search.result.order('created_at DESC').paginate(page: params[:page])
+    render 'index'
+  end
+
+  def get_rfcs_with_my_comments
+    @search = RequestForComment
+                  .joins(:comments) # we don't need to outer join here, because we know the user has commented on these
+                  .where(comments: {user_id: current_user.id})
+                  .joins('join "submissions" s on s.id = request_for_comments.submission_id
+                          left outer join "files" f on f.context_id = s.id
+                          left outer join "comments" as c on c.file_id = f.id')
+                  .group('request_for_comments.id')
+                  .select('request_for_comments.*, max(c.updated_at) as last_comment')
+                  .search(params[:q])
+    @request_for_comments = @search.result.order('last_comment DESC').paginate(page: params[:page])
     render 'index'
   end
 
diff --git a/app/views/application/_session.html.slim b/app/views/application/_session.html.slim
index cbbf3b12..eb9f4d23 100644
--- a/app/views/application/_session.html.slim
+++ b/app/views/application/_session.html.slim
@@ -10,6 +10,7 @@
         li = link_to(t('internal_users.show.link'), current_user)
       li = link_to(t('request_for_comments.index.all'), request_for_comments_path)
       li = link_to(t('request_for_comments.index.get_my_comment_requests'), my_request_for_comments_path)
+      li = link_to(t('request_for_comments.index.get_my_rfc_activity'), my_rfc_activity_path)
       - if current_user.internal_user?
         li = link_to(t('sessions.destroy.link'), sign_out_path, method: :delete)
 - else
diff --git a/app/views/request_for_comments/index.html.slim b/app/views/request_for_comments/index.html.slim
index db16b562..a081dd55 100644
--- a/app/views/request_for_comments/index.html.slim
+++ b/app/views/request_for_comments/index.html.slim
@@ -20,6 +20,7 @@ h1 = RequestForComment.model_name.human(count: 2)
           i class="fa fa-comment" aria-hidden="true" title = t('request_for_comments.comments') align="center"
         th = t('activerecord.attributes.request_for_comments.username')
         th = t('activerecord.attributes.request_for_comments.requested_at')
+        th = t('activerecord.attributes.request_for_comments.last_update')
     tbody
       - @request_for_comments.each do |request_for_comment|
         tr data-id=request_for_comment.id
@@ -36,5 +37,6 @@ h1 = RequestForComment.model_name.human(count: 2)
           td = request_for_comment.comments_count
           td = request_for_comment.user.displayname
           td = t('shared.time.before', time: distance_of_time_in_words_to_now(request_for_comment.created_at))
+          td = t('shared.time.before', time: distance_of_time_in_words_to_now(request_for_comment.last_comment.nil? ? request_for_comment.updated_at : request_for_comment.last_comment))
 
 = render('shared/pagination', collection: @request_for_comments)
\ No newline at end of file
diff --git a/config/locales/de.yml b/config/locales/de.yml
index 090b1823..a8681878 100644
--- a/config/locales/de.yml
+++ b/config/locales/de.yml
@@ -94,6 +94,7 @@ de:
         requested_at: Angefragezeitpunkt
         question: "Frage"
         close: "Fenster schließen"
+        last_update: "Letzte Aktivität"
       submission:
         cause: Anlass
         code: Code
@@ -456,6 +457,8 @@ de:
     index:
       get_my_comment_requests: Meine Kommentaranfragen
       all: "Alle Kommentaranfragen"
+      get_rfcs_with_my_comments: Kommentaranfragen die ich kommentiert habe
+      get_my_rfc_activity: "Meine Kommentaraktivität"
     no_question: "Der Autor hat keine Frage zu dieser Anfrage gestellt."
     mark_as_solved: "Diese Frage als beantwortet markieren"
     show_all: "Alle Anfragen anzeigen"
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 1d7ed507..f53f6485 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -115,6 +115,7 @@ en:
         requested_at: Request Date
         question: "Question"
         close: Close window
+        last_update: "Last Update"
       submission:
         cause: Cause
         code: Code
@@ -477,6 +478,8 @@ en:
     index:
       all: All Requests for Comments
       get_my_comment_requests: My Requests for Comments
+      get_rfcs_with_my_comments: Requests for Comments I have commented on
+      get_my_rfc_activity: "My Comment Activity"
     no_question: "The author did not enter a question for this request."
     mark_as_solved: "Mark this question as answered"
     show_all: "All requests"
diff --git a/config/routes.rb b/config/routes.rb
index d340a204..65a8f56a 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -20,6 +20,7 @@ Rails.application.routes.draw do
     end
   end
   get '/my_request_for_comments', as: 'my_request_for_comments', to: 'request_for_comments#get_my_comment_requests'
+  get '/my_rfc_activity', as: 'my_rfc_activity', to: 'request_for_comments#get_rfcs_with_my_comments'
 
   delete '/comment_by_id', to: 'comments#destroy_by_id'
   put '/comments', to: 'comments#update'