Eduardo Romero is setting a torrid pase for the rest of the field at the 28th U.S. Senior Open .
Romero just birdied hold #6 to go to 7-under par through 15. He has a 3-shot lead on Mark James, who is at 4-under par through 12.
Oconomowoc's Jim Rollefson (pictured) is at 4-over through 9.