Scott Langley took the second-round lead in the Travelers Championship on Friday, following his opening 64 with a 65 to reach 11 under 129.
Winless in two seasons on the PGA Tour, the 25-year-old Langley had eight birdies, a double bogey and a bogey in the second round at TPC River Highlands.
Michael Putnam, Harris English and K.J. Choi were a stroke back. Putnam shot 63, the best round of the day. English had a 64, and Choi shot 65.
Patrick Rodgers, the former Stanford star making his pro debut, was 5 under after a 69. Cameron Wilson, Rodgers' college teammate who also was making his pro debut, missed the cut with rounds of 73 and 75.
Defending champion Ken Duke was 3 under after a 72.