The 2010 World Cup Regulations stipulate that:
In the knockout stages, if a match is level at the end of normal playing time, extra time of two periods of 15 minutes each will be played. If the score is level after extra time, penalty kicks will be taken to determine the winner in accordance with the procedure described in the Laws of the Game.
There were 2 penalty shoot outs in the Knockout Stages of the 2010 FIFA World Cup.
Game 55 Paraguay v Japan
1-0, 1-1, 2-1, 2-2, 3-2, Japan miss, 4-2, 4-3, 5-3. Paraguay win.
Game 58 Uruguay v Ghana
1-0, 1-1, 2-1, 2-2, 3-2, Ghana miss, Uruguay miss, Ghana miss, 4-2. Uruguay win.
Outcomes of Shoot Out
Higher FIFA Ranking Team
Team that takes the first penalty in the shoot out
Team that scores the first goal in the shoot out