Troy Matteson shot a 3-under-par 68 for a one-stroke lead over Jeff Maggert and Brian Harman after two rounds of the John Deere Classic on Friday.
The designer of the Olympic golf course for the 2016 Summer Games won't be announced until March.
Richard Finch of England shot a 6-under 66 Thursday to lead the Johnnie Walker Championship after the opening round.
Robert Allenby has won the Nedbank Challenge, beating Henrik Stenson on the third playoff hole after a 1-under 71 in the final round.
British Open field