diff --git a/app/assets/javascripts/controllers/admin/trainings.coffee.erb b/app/assets/javascripts/controllers/admin/trainings.coffee.erb
index 1e69b333d..815bf8026 100644
--- a/app/assets/javascripts/controllers/admin/trainings.coffee.erb
+++ b/app/assets/javascripts/controllers/admin/trainings.coffee.erb
@@ -296,7 +296,7 @@ Application.Controllers.controller "TrainingsAdminController", ["$scope", "$stat
   # The selected training details will be loaded from the API and rendered into the accordions.
   ##
   $scope.selectTrainingToMonitor = ->
-    Training.get {id: $scope.monitoring.training.id}, (training) ->
+    Training.availabilities {id: $scope.monitoring.training.id}, (training) ->
       $scope.groupedAvailabilities = groupAvailabilities([training])
 
 
diff --git a/app/assets/javascripts/services/training.coffee b/app/assets/javascripts/services/training.coffee
index c62f277d0..6647f0b12 100644
--- a/app/assets/javascripts/services/training.coffee
+++ b/app/assets/javascripts/services/training.coffee
@@ -5,4 +5,7 @@ Application.Services.factory 'Training', ["$resource", ($resource)->
     {id: "@id"},
     update:
       method: 'PUT'
+    availabilities:
+      method: 'GET'
+      url: "/api/trainings/:id/availabilities"
 ]
diff --git a/app/controllers/api/trainings_controller.rb b/app/controllers/api/trainings_controller.rb
index 0269c8068..a00d0fc4a 100644
--- a/app/controllers/api/trainings_controller.rb
+++ b/app/controllers/api/trainings_controller.rb
@@ -17,8 +17,7 @@ class API::TrainingsController < API::ApiController
   end
 
   def show
-    @training = Training.includes(availabilities: {slots: {reservation: {user: [:profile, :trainings] }}})
-                .where(id: params[:id]).first
+    @training = Training.find(params[:id])
   end
 
   def create
@@ -55,6 +54,12 @@ class API::TrainingsController < API::ApiController
     head :no_content
   end
 
+  def availabilities
+    authorize Training
+    @training = Training.find(params[:id])
+    @availabilities = @training.availabilities.includes(slots: {reservation: {user: [:profile, :trainings] }}).order('start_at DESC')
+  end
+
   private
     def set_training
       @training = Training.find(params[:id])
diff --git a/app/policies/training_policy.rb b/app/policies/training_policy.rb
index 043817e4a..0a095bd5f 100644
--- a/app/policies/training_policy.rb
+++ b/app/policies/training_policy.rb
@@ -5,7 +5,7 @@ class TrainingPolicy < ApplicationPolicy
     end
   end
 
-  %w(show create update).each do |action|
+  %w(create update).each do |action|
     define_method "#{action}?" do
       user.is_admin?
     end
@@ -14,4 +14,8 @@ class TrainingPolicy < ApplicationPolicy
   def destroy?
     user.is_admin? and record.destroyable?
   end
+
+  def availabilities?
+    user.is_admin?
+  end
 end
diff --git a/app/views/api/trainings/availabilities.json.jbuilder b/app/views/api/trainings/availabilities.json.jbuilder
new file mode 100644
index 000000000..e40db7827
--- /dev/null
+++ b/app/views/api/trainings/availabilities.json.jbuilder
@@ -0,0 +1,11 @@
+json.extract! @training, :id, :name, :description, :machine_ids, :nb_total_places, :public_page
+json.availabilities @availabilities do |a|
+  json.id a.id
+  json.start_at a.start_at.iso8601
+  json.end_at a.end_at.iso8601
+  json.reservation_users a.slots.map do |slot|
+    json.id slot.reservation.user.id
+    json.full_name slot.reservation.user.profile.full_name
+    json.is_valid slot.reservation.user.trainings.include?(@training)
+  end
+end
diff --git a/app/views/api/trainings/show.json.jbuilder b/app/views/api/trainings/show.json.jbuilder
index ea54df304..5d69b4223 100644
--- a/app/views/api/trainings/show.json.jbuilder
+++ b/app/views/api/trainings/show.json.jbuilder
@@ -1,12 +1,2 @@
 json.extract! @training, :id, :name, :description, :machine_ids, :nb_total_places, :public_page
 json.training_image @training.training_image.attachment.large.url if @training.training_image
-json.availabilities @training.availabilities.order('start_at DESC') do |a|
-  json.id a.id
-  json.start_at a.start_at.iso8601
-  json.end_at a.end_at.iso8601
-  json.reservation_users a.slots.map do |slot|
-    json.id slot.reservation.user.id
-    json.full_name slot.reservation.user.profile.full_name
-    json.is_valid slot.reservation.user.trainings.include?(@training)
-  end
-end
diff --git a/config/routes.rb b/config/routes.rb
index 2e9b80b13..75c9a0331 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -86,7 +86,9 @@ Rails.application.routes.draw do
     end
 
     # for admin
-    resources :trainings
+    resources :trainings do
+      get :availabilities, on: :member
+    end
     resources :credits
     resources :categories
     resources :event_themes