Robert Karlsson (born 3 September 1969) is a Swedish professional golfer who plays on the European Tour and as of 2011 on the PGA Tour.

Karlsson was born in Katrineholm, Sweden where his father was a greenkeeper at the local golf club. He turned professional in 1989 and qualified for membership of the European Tour at the 1990 Qualifying School. Since then he has retained his card and has had a steady career on tour, the highlight of which came in 2008 when he won the Order of Merit. He has finished in the top twenty of the Order of Merit seven times throughout his career and has won eleven events on tour.

At the 2006 Celtic Manor Wales Open, Karlsson broke the European Tour's 36 hole and 54 hole scoring records by shooting 124 for the first two rounds and 189 for the first three. However as the course was a par 69, which is rare at the top level, his to-par scores were a much less remarkable 14 under after two rounds and 18 under after three.

Karlsson's second victory of 2006 at the Deutsche Bank Players Championship of Europe in July helped him reach the top 50 of the Official World Golf Rankings and in 2008 he entered the top 25. His win at the Alfred Dunhill Links Championship took him to number 8 in October 2008. A T3 finish at the Portugal Masters two weeks later took him to number 6. He has spent over 25 weeks in the top-10 since 2008.

Dustin Hunter Johnson (born June 22, 1984) is an American professional golfer who currently plays on the PGA Tour. He is one of the longest drivers on the PGA Tour having been third in the driving distance stats for three consecutive years between 2009-2011.

Johnson was born in Columbia, South Carolina. He played collegiate golf at Coastal Carolina University. As an amateur, he won the Monroe Invitational and the Northeast Amateur in 2007 and played on the winning 2007 Walker Cup and Palmer Cup teams.

Johnson turned professional in 2007 and earned his 2008 PGA Tour card by finishing in a tie for 14th place in the 2007 qualifying school.

Johnson won his first PGA Tour event, the Turning Stone Resort Championship in October 2008. Four months later, he won his second event at the AT&T Pebble Beach National Pro-Am. The tournament was shortened to 54 holes when the final round was cancelled due to strong winds and heavy rain, leaving Johnson the winner by four strokes over Mike Weir and five strokes over second round leader Retief Goosen, who shot a third round 2 over par 74. Johnson finished the 2009 season ranked 15th on the PGA Tour money list.

Simon Dyson (born 21 December 1977) is an English professional golfer who is currently a member of the European Tour, having formerly played on the Asian Tour.

Dyson was born in York, England. In 1999, he was runner-up in the English Amateur and won the Finnish Amateur title. He was also a member of the Great Britain & Ireland Walker Cup team that year, before turning professional in September.

In 2000, Dyson topped the Asian Tour Order of Merit after winning three tournaments on that tour, and was also Rookie of the Year. He also played a small number of events on the European Tour in 2000. Since 2001 he has played mainly on the European Tour, and has finished in the top 100 on the Order of Merit nine times, the only exception being in 2003. In March 2006 he won his maiden European Tour title at the Enjoy Jakarta Indonesia Open and he followed up later that year by winning the KLM Open in a play-off over Richard Green. These victories helped him to finish a career-high, at the time, 21st place on the Order of Merit and climb into the top 100 of the Official World Golf Rankings for the first time in his career.

Graeme McDowell MBE (born 30 July 1979) is a Northern Irish professional golfer who plays on both the PGA Tour and European Tour. He is well known for winning the 2010 U.S. Open at Pebble Beach where he ended a 40 year drought for Europeans at the tournament. McDowell has won seven events on the European Tour, including the 2010 U.S. Open which was also his first and only win on the PGA Tour. He has also represented Ireland at the World Cup and been a member of the European Ryder Cup team on two occasions.

Before turning professional, McDowell had a successful amateur career both in Ireland and in the United States, where he won many tournaments and was recognised as the most outstanding collegiate golfer in 2002. He also represented Ireland internationally and was a member of the triumphant Great Britain and Ireland Walker Cup team in 2001.

McDowell was born in Portrush, Northern Ireland. He has played with Rathmore Golf Club since he was eight or nine years old. His uncle, Uel Loughery, coached him there when he was younger. At the age of 14, McDowell played senior cup for Rathmore. He attended the University of Alabama at Birmingham from 1998 to 2002. In 2002, he won the Haskins Award, given to the most outstanding collegiate golfer in the United States. He won on six occasions that season, out of 12 college events. In 2001 he was a member of the Great Britain and Ireland team which retained the Walker Cup at Sea Island, Georgia, United States.

Paul Alexander Casey (born 21 July 1977) is an English golfer who is a member of the world's top two professional golf tours, the U.S.-based PGA Tour and the European Tour. In 2009 he achieved his highest position, third, in the Official World Golf Rankings.

Casey was born in Cheltenham, but moved with his family to Weybridge, Surrey at the age of six. After attending Cleves School, Weybridge and then Hampton School, he studied A levels at Strode's College, Egham. He then took a golf scholarship at Arizona State University.

His amateur career was distinguished. In the U.S. he was the first man to win three consecutive Pac-10 Championships (1998, 1999 and 2000). In 2000 he broke the championship scoring record held by Tiger Woods (18 under par) with a 23 under par 265. Back on the other side of the Atlantic he won the English Amateur in 1999 and 2000. He was also a member of Great Britain and Ireland's winning 1999 Walker Cup team, where he was only the third player in seventy seven years to record four victories without a single defeat.