diff --git a/app/controllers/tournaments_controller.rb b/app/controllers/tournaments_controller.rb
new file mode 100644
index 0000000..a8710e1
--- /dev/null
+++ b/app/controllers/tournaments_controller.rb
@@ -0,0 +1,53 @@
+# frozen_string_literal: true
+
+class TournamentsController < ApplicationController
+  before_action :set_tournament, only: %i[show update destroy]
+  before_action :authenticate_user!, only: %i[create update destroy]
+  before_action -> { require_owner! @tournament.owner }, only: %i[update destroy]
+
+  # GET /tournaments
+  def index
+    tournaments = Tournament.where(public: true).or(Tournament.where(owner: current_user)).order(:created_at)
+    render json: tournaments, each_serializer: SimpleTournamentSerializer
+  end
+
+  # GET /tournaments/1
+  def show
+    render json: @tournament
+  end
+
+  # POST /tournaments
+  def create
+    tournament = current_user.tournaments.new tournament_params
+
+    if tournament.save
+      render json: tournament, status: :created, location: tournament
+    else
+      render json: tournament.errors, status: :unprocessable_entity
+    end
+  end
+
+  # PATCH/PUT /tournaments/1
+  def update
+    if @tournament.update(tournament_params)
+      render json: @tournament
+    else
+      render json: @tournament.errors, status: :unprocessable_entity
+    end
+  end
+
+  # DELETE /tournaments/1
+  def destroy
+    @tournament.destroy
+  end
+
+  private
+
+  def set_tournament
+    @tournament = Tournament.find(params[:id])
+  end
+
+  def tournament_params
+    deserialize_params only: %i[name description public teams]
+  end
+end