<%=link_to 'result', resultpage_path, :controller => 'resultpage', :action => 'result1', :class => 'btn btn-default'%>

class ResultpageController < ApplicationController

def index
end

# regardless of what is in the :action =>, the controller always calls Show.
def show
  @prize = Prize.first
  render :index
end

# if i make the :action => 'result1', the controller still calls Show.
def result1
  @prize = Prize.last
  render :index
end

<h2><%= @prize.title %></h2>
  <p><%= @prize.description %></p>

resources :resultpage do
    get 'index'
    get 'show'
end

resources :prizes