diff --git a/app/blueprints/api/v1/gw_event_blueprint.rb b/app/blueprints/api/v1/gw_event_blueprint.rb
index 2861100..e90d205 100644
--- a/app/blueprints/api/v1/gw_event_blueprint.rb
+++ b/app/blueprints/api/v1/gw_event_blueprint.rb
@@ -3,7 +3,11 @@
 module Api
   module V1
     class GwEventBlueprint < ApiBlueprint
-      fields :name, :element, :start_date, :end_date, :event_number
+      fields :start_date, :end_date, :event_number
+
+      field :element do |event|
+        GwEvent.elements[event.element]
+      end
 
       field :status do |event|
         if event.active?
diff --git a/app/controllers/api/v1/crew_gw_participations_controller.rb b/app/controllers/api/v1/crew_gw_participations_controller.rb
index f64a5d4..edf0b3b 100644
--- a/app/controllers/api/v1/crew_gw_participations_controller.rb
+++ b/app/controllers/api/v1/crew_gw_participations_controller.rb
@@ -22,6 +22,39 @@ module Api
         render json: CrewGwParticipationBlueprint.render(@participation, view: :with_individual_scores, root: :crew_gw_participation)
       end
 
+      # GET /crew/gw_participations/by_event/:event_id
+      def by_event
+        # Support lookup by event_id (UUID) or event_number (integer)
+        event = if params[:event_id].match?(/\A\d+\z/)
+                  GwEvent.find_by(event_number: params[:event_id])
+                else
+                  GwEvent.find_by(id: params[:event_id])
+                end
+
+        return render json: { gw_event: nil, crew_gw_participation: nil, members_during_event: [] } unless event
+
+        participation = @crew.crew_gw_participations
+                             .includes(:gw_event, gw_individual_scores: [:crew_membership, :phantom_player])
+                             .find_by(gw_event: event)
+
+        # Get all members who were active during the event (includes retired members who left after event started)
+        # Also include all currently active members for score entry purposes
+        # Uses joined_at (editable) for historical accuracy
+        members_during_event = @crew.crew_memberships
+                                    .includes(:user)
+                                    .active_during(event.start_date, event.end_date)
+
+        # Get all phantom players who were active during the event or currently active
+        phantom_players = @crew.phantom_players.active_during(event.start_date, event.end_date)
+
+        render json: {
+          gw_event: GwEventBlueprint.render_as_hash(event),
+          crew_gw_participation: participation ? CrewGwParticipationBlueprint.render_as_hash(participation, view: :with_individual_scores) : nil,
+          members_during_event: CrewMembershipBlueprint.render_as_hash(members_during_event, view: :with_user),
+          phantom_players: PhantomPlayerBlueprint.render_as_hash(phantom_players)
+        }
+      end
+
       # POST /gw_events/:id/participations
       def create
         event = GwEvent.find(params[:id])
diff --git a/app/controllers/api/v1/gw_events_controller.rb b/app/controllers/api/v1/gw_events_controller.rb
index f2aadcb..33a158f 100644
--- a/app/controllers/api/v1/gw_events_controller.rb
+++ b/app/controllers/api/v1/gw_events_controller.rb
@@ -46,7 +46,7 @@ module Api
       end
 
       def event_params
-        params.require(:gw_event).permit(:name, :element, :start_date, :end_date, :event_number)
+        params.require(:gw_event).permit(:element, :start_date, :end_date, :event_number)
       end
 
       def require_admin!
diff --git a/app/models/gw_event.rb b/app/models/gw_event.rb
index 3f541fa..6050cf2 100644
--- a/app/models/gw_event.rb
+++ b/app/models/gw_event.rb
@@ -8,7 +8,6 @@ class GwEvent < ApplicationRecord
 
   enum :element, ELEMENTS
 
-  validates :name, presence: true
   validates :element, presence: true
   validates :start_date, presence: true
   validates :end_date, presence: true
diff --git a/db/migrate/20251204093029_change_gw_events_name_nullable.rb b/db/migrate/20251204093029_change_gw_events_name_nullable.rb
new file mode 100644
index 0000000..8fdf645
--- /dev/null
+++ b/db/migrate/20251204093029_change_gw_events_name_nullable.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class ChangeGwEventsNameNullable < ActiveRecord::Migration[8.0]
+  def change
+    remove_column :gw_events, :name, :string
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 79d2f6a..1c0478f 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.0].define(version: 2025_12_04_075226) do
+ActiveRecord::Schema[8.0].define(version: 2025_12_04_102935) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "btree_gin"
   enable_extension "pg_catalog.plpgsql"
@@ -269,6 +269,7 @@ ActiveRecord::Schema[8.0].define(version: 2025_12_04_075226) do
     t.datetime "retired_at"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
+    t.datetime "joined_at"
     t.index ["crew_id", "role"], name: "index_crew_memberships_on_crew_id_and_role"
     t.index ["crew_id", "user_id"], name: "index_crew_memberships_on_crew_id_and_user_id", unique: true
     t.index ["crew_id"], name: "index_crew_memberships_on_crew_id"
@@ -462,7 +463,6 @@ ActiveRecord::Schema[8.0].define(version: 2025_12_04_075226) do
   end
 
   create_table "gw_events", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
-    t.string "name", null: false
     t.integer "element", null: false
     t.date "start_date", null: false
     t.date "end_date", null: false
@@ -664,6 +664,9 @@ ActiveRecord::Schema[8.0].define(version: 2025_12_04_075226) do
     t.boolean "claim_confirmed", default: false, null: false
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
+    t.boolean "retired", default: false, null: false
+    t.datetime "retired_at"
+    t.datetime "joined_at"
     t.index ["claimed_by_id"], name: "index_phantom_players_on_claimed_by_id"
     t.index ["claimed_from_membership_id"], name: "index_phantom_players_on_claimed_from_membership_id"
     t.index ["crew_id", "granblue_id"], name: "index_phantom_players_on_crew_id_and_granblue_id", unique: true, where: "(granblue_id IS NOT NULL)"
diff --git a/spec/factories/gw_events.rb b/spec/factories/gw_events.rb
index bce003c..5361e80 100644
--- a/spec/factories/gw_events.rb
+++ b/spec/factories/gw_events.rb
@@ -1,6 +1,5 @@
 FactoryBot.define do
   factory :gw_event do
-    sequence(:name) { |n| "Unite and Fight ##{n}" }
     element { %i[Fire Water Earth Wind Light Dark].sample }
     start_date { 1.week.from_now.to_date }
     end_date { 2.weeks.from_now.to_date }
diff --git a/spec/requests/api/v1/crew_gw_participations_spec.rb b/spec/requests/api/v1/crew_gw_participations_spec.rb
index a6ac128..dbba905 100644
--- a/spec/requests/api/v1/crew_gw_participations_spec.rb
+++ b/spec/requests/api/v1/crew_gw_participations_spec.rb
@@ -91,6 +91,65 @@ RSpec.describe 'Api::V1::CrewGwParticipations', type: :request do
     end
   end
 
+  describe 'GET /api/v1/crew/gw_participations/by_event/:event_id' do
+    context 'when participating in the event' do
+      let!(:participation) { create(:crew_gw_participation, crew: crew, gw_event: gw_event) }
+
+      it 'returns the event and participation by event ID' do
+        get "/api/v1/crew/gw_participations/by_event/#{gw_event.id}", headers: auth_headers
+        expect(response).to have_http_status(:ok)
+        json = JSON.parse(response.body)
+        expect(json['gw_event']['id']).to eq(gw_event.id)
+        expect(json['crew_gw_participation']['id']).to eq(participation.id)
+        expect(json['members_during_event']).to be_an(Array)
+      end
+
+      it 'returns the event and participation by event number' do
+        get "/api/v1/crew/gw_participations/by_event/#{gw_event.event_number}", headers: auth_headers
+        expect(response).to have_http_status(:ok)
+        json = JSON.parse(response.body)
+        expect(json['gw_event']['id']).to eq(gw_event.id)
+        expect(json['crew_gw_participation']['id']).to eq(participation.id)
+      end
+
+      it 'includes members who were active during the event' do
+        get "/api/v1/crew/gw_participations/by_event/#{gw_event.id}", headers: auth_headers
+        json = JSON.parse(response.body)
+        member_ids = json['members_during_event'].map { |m| m['id'] }
+        expect(member_ids).to include(membership.id)
+      end
+    end
+
+    context 'when not participating in the event' do
+      it 'returns event but null participation' do
+        get "/api/v1/crew/gw_participations/by_event/#{gw_event.id}", headers: auth_headers
+        expect(response).to have_http_status(:ok)
+        json = JSON.parse(response.body)
+        expect(json['gw_event']['id']).to eq(gw_event.id)
+        expect(json['crew_gw_participation']).to be_nil
+      end
+    end
+
+    context 'when event does not exist' do
+      it 'returns null for both' do
+        get '/api/v1/crew/gw_participations/by_event/99999', headers: auth_headers
+        expect(response).to have_http_status(:ok)
+        json = JSON.parse(response.body)
+        expect(json['gw_event']).to be_nil
+        expect(json['crew_gw_participation']).to be_nil
+      end
+    end
+
+    context 'without a crew' do
+      let!(:membership) { nil }
+
+      it 'returns unprocessable_entity' do
+        get "/api/v1/crew/gw_participations/by_event/#{gw_event.id}", headers: auth_headers
+        expect(response).to have_http_status(:unprocessable_entity)
+      end
+    end
+  end
+
   describe 'PUT /api/v1/crew/gw_participations/:id' do
     let!(:participation) { create(:crew_gw_participation, crew: crew, gw_event: gw_event) }
 
diff --git a/spec/requests/api/v1/gw_events_spec.rb b/spec/requests/api/v1/gw_events_spec.rb
index fad989d..da51d89 100644
--- a/spec/requests/api/v1/gw_events_spec.rb
+++ b/spec/requests/api/v1/gw_events_spec.rb
@@ -31,8 +31,7 @@ RSpec.describe 'Api::V1::GwEvents', type: :request do
       get "/api/v1/gw_events/#{event.id}"
       expect(response).to have_http_status(:ok)
       expect(json_response['gw_event']['id']).to eq(event.id)
-      expect(json_response['gw_event']['name']).to eq(event.name)
-      expect(json_response['gw_event']['element']).to eq(event.element)
+      expect(json_response['gw_event']['element']).to eq(GwEvent.elements[event.element])
     end
 
     it 'returns 404 for non-existent event' do
@@ -45,7 +44,6 @@ RSpec.describe 'Api::V1::GwEvents', type: :request do
     let(:valid_params) do
       {
         gw_event: {
-          name: 'Unite and Fight #50',
           element: 'Fire',
           start_date: 1.week.from_now.to_date,
           end_date: 2.weeks.from_now.to_date,
@@ -61,12 +59,12 @@ RSpec.describe 'Api::V1::GwEvents', type: :request do
         }.to change(GwEvent, :count).by(1)
 
         expect(response).to have_http_status(:created)
-        expect(json_response['gw_event']['name']).to eq('Unite and Fight #50')
-        expect(json_response['gw_event']['element']).to eq('Fire')
+        expect(json_response['gw_event']['element']).to eq(GwEvent.elements['Fire'])
+        expect(json_response['gw_event']['event_number']).to eq(50)
       end
 
       it 'returns errors for invalid params' do
-        post '/api/v1/gw_events', params: { gw_event: { name: '' } }, headers: admin_headers
+        post '/api/v1/gw_events', params: { gw_event: { element: '' } }, headers: admin_headers
         expect(response).to have_http_status(:unprocessable_entity)
       end
     end
@@ -88,13 +86,13 @@ RSpec.describe 'Api::V1::GwEvents', type: :request do
 
   describe 'PUT /api/v1/gw_events/:id' do
     let!(:event) { create(:gw_event) }
-    let(:update_params) { { gw_event: { name: 'Updated Event Name' } } }
+    let(:update_params) { { gw_event: { event_number: 99 } } }
 
     context 'as admin' do
       it 'updates the event' do
         put "/api/v1/gw_events/#{event.id}", params: update_params, headers: admin_headers
         expect(response).to have_http_status(:ok)
-        expect(json_response['gw_event']['name']).to eq('Updated Event Name')
+        expect(json_response['gw_event']['event_number']).to eq(99)
       end
     end