Ernie Els is currently No. 1 on the money list, but there are four players with a chance to surpass the South African for the Harry Vardon Trophy: British Open winner Padraig Harrington of Ireland, who won it last season; England's Justin Rose; and Henrik Stenson and Niclas Fasth of Sweden.
Harrington, currently second behind Els, is the only one of the challengers who has claimed an Order of Merit title before. Rose (No. 3), Stenson (No. 4) and Fasth (No. 5) will all be looking for their first.
The top 60 players on the money list will be joined in the field by a host of past champions as the event celebrates its 20th year.
Last year, Jeev Milkha Singh shot a 1-over 72 in the final round but still beat Luke Donald, Sergio Garcia and Harrington by a stroke for his second victory of the season. Harrington's tie for second place gave him enough money to surpass Paul Casey for his first Order of Merit title.
The GOLF CHANNEL will have coverage of all four rounds.