Full list of all 45 Rugby World Cup 2011 achievements worth 1,000 gamerscore. It takes around 10-12 hours to unlock all of the achievements on Xbox 360.
Play 100 matches in total (including matches played in any mode) as the lead profile
Win a match with every International team as the lead profile
Win a match with 2 or more human-controlled players on your team
Score a decisive winning drop goal during an Extra Time or Sudden Death period
Win every match of every Southern Hemisphere tour playing against CPU (Hard) as the lead profile
Punt into touch from behind your team's 22 metre line for a territorial gain of 50+ metres
Win a match in the Place-Kick Shootout mode against CPU (Hard)
Execute a set play from a ruck, scrum or maul and score a try on the same phase of possession
Attempt all four of your team's assigned set plays in a match
Win every match of every Northern Hemisphere tour playing against CPU (Hard) as the lead profile
Score to win a match with no time left in the 2nd half against CPU (Medium or higher)
Score a try, conversion, penalty goal and drop goal all in the same match
Score a try directly after recovering a Scrum Half Kick against CPU (Medium or higher)
Win a match where your team doesn't score a try against CPU (Medium or higher)
Score a try directly after recovering an Up and Under Kick against CPU (Medium or higher)
Perform a soccer kick
Do not concede any points in a match against CPU (Hard)
Win the Rugby World Cup 2011 Final
Win the Rugby World Cup 2011 Final with a team rated less than 60 against CPU (Hard)
Intercept an opposition team's line-out throw
Earn 20 pool stage points in Rugby World Cup 2011 playing against CPU (Hard) as the lead profile
Perform a Quick Pickup from a tackled player then directly run and score a try
Score 50+ unanswered points against CPU (Medium or higher, 5 or 10 min halves)
Score 15 tries in a match (5 or 10 min halves)
Score a drop goal with a player currently playing in a Prop position
Play a match on Xbox LIVE
Beat an 85+ rated team with a team rated less than 70 against CPU (Hard)
Score a try with a player currently playing in a Prop position
Score a penalty goal or conversion from 55+ metres
Beat New Zealand with a team rated less than 80 against CPU (Hard, 20 min halves)
Score a try directly after recovering a Grubber Kick against CPU (Medium or higher)
Stay in the offensive in-goal area for at least 5 seconds directly before scoring a try
Score a try by running with the ball directly from one goal line to the other
Perform a dummy pass and fool a defending player
Score a drop goal, penalty goal or a conversion
Score a penalty goal or conversion off the post or crossbar
Score a try
Score 3 tries with the same player in a match against CPU (Medium or higher)
Touch the ball down to score a try without diving and without being tackled
Score a try in one phase or less of possession against CPU (Medium or higher)
Score a try directly from a kick-off, or restart kick, which occurred on the 50 metre line
Successfully complete 20 dive tackles in a match
Gain possession of the ball at a scrum when playing as the defensive team
Be awarded a yellow card
Be awarded a red card