The back nine at TPC Summerlin played 1.5 strokes easier in relation to par than the front nine during the first round of the Justin Timberlake Shriners Hospitals for Children Open. That average is skewing even more in the favor of the home nine Friday, at least with those posting the day’s best scores. Six players have reached the clubhouse with scores of 6 under or better in their second rounds. Those players are a combined 30 under on the back nine and just 14 under on the front. Trevor Immelman Is putting together a back nine that has him fitting right in. With five consecutive birdies on holes 12 through 16, the 2008 Masters Champion has the best round of the afternoon to this point and is three shots out of the lead shared by Kevin Na, Charlie Wi and Jhonattan Vegas. Immelman, who hasn’t notched a top-10 finish since the 2008 TOUR Championship, is now tied for 12th, and has 10 holes remaining in his second round. Joining him at 5 under this afternoon is D.J. Trahan. Trahan entered the day at 1 over and had five birdies on the back nine at TPC Summerlin to move inside the current projected cut line. Currently there are 11 players at 3 under or better in the afternoon wave. Of those 11, nine started their rounds on the back nine. Only Joe Ogilvie (-3 through 10) and Stephen Ames (-3 through 8) are bucking the trend.