See https://developer.yahoo.com/fantasysports/guide/ for details

game_resource_sample.xml

<?xml version="1.0" encoding="UTF-8"?>
<fantasy_content xml:lang="en-US" yahoo:uri="http://fantasysports.yahooapis.com/fantasy/v2/game/nfl" xmlns:yahoo="http://www.yahooapis.com/v1/base.rng" time="30.575037002563ms" copyright="Data provided by Yahoo! and STATS, LLC" xmlns="http://fantasysports.yahooapis.com/fantasy/v2/base.rng">
  <game>
    <game_key>257</game_key>
    <game_id>257</game_id>
    <name>Football</name>
    <code>nfl</code>
    <type>full</type>
    <url>https://football.fantasysports.yahoo.com/f1</url>
    <season>2011</season>
  </game>
</fantasy_content>