1. Soccer
1.1. Why they use it?
1.1.1. A history of obvious goals being dissalowd
1.2. Why its used?
1.2.1. Aid Referres in decision making
1.2.2. Balls moving to fast for referres to make definitive decision
1.3. Cost?
1.3.1. ~$260,000 + $15,000 Instalation
1.3.1.1. ~$4,000 per game
1.4. Pros
1.4.1. Fast, Definitive, Correct Desisions
1.5. Cons
1.5.1. Takes the human element out of the game
1.5.2. Lower Leagues will mot be able to afford it
1.6. First Big Use was Brazil World Cup 2014
1.7. Recently brought into the English Premier League (2013/14)
1.7.1. Working Very Well
1.7.1.1. Brought into German Bundesliga this year
1.8. What they use?
1.8.1. Hawkeye
2. Tennis
2.1. What they use?
2.1.1. Hawkeye
2.1.1.1. 6-7 Cameras Installed to the stadium roof
2.2. Why its used?
2.2.1. Used to track the ball and see if its in play or not
2.2.1.1. 2004 US Open - Serena Williams QF loss first call for the need of the system
2.3. How its used?
2.3.1. A challenge systems (3 challenges per palyer)
2.4. Pros
2.4.1. Fast decisions
2.5. Cons
2.5.1. Players claim in can be inacurate at times (Rodger Federer)
2.5.2. Officails at French Open refuse to use it
2.6. Cost
2.6.1. ~$100,000 per court
3. Possible Videos
3.1. Video Demonsrating the tech
3.2. Frank Lampard vs Germany
4. Rugby
4.1. TMO
4.1.1. Television Match Official
4.1.2. 2001
4.2. Why its used?
4.2.1. Try/No Try
4.2.2. Foul Play
5. GAA
5.1. Hawkeye
5.1.1. Hurling/Football
5.2. Why its used?
5.2.1. Point/No Point