Robert Garrigus, Will MacKenzie, Michael Letzig, John Senden and Cameron Tringale, a three-time All-American at Georgia Tech, share the lead at 64.
Taylor is tied for sixth with George McNeill, Nicholas Thompson, Ryan Palmer and Martin Flores. Nick Watney, John Daly and Davis Love III head a group at 66, which also includes Augusta native Charles Howell.
Hunter Mahan shot 67 in his first round since the Ryder Cup, and U.S. teammate Rickie Fowler had 68.
Former Louisville, Ga., resident Brian Gay opened with 69.
MacKenzie, a two-time winner on the PGA Tour, birdied his first three holes -- Nos. 1, 2 and 3 -- and made up for a bogey on No. 8 with a birdie on the ninth. He birdied Nos. 12-14 and 16 on the back nine.
Letzig was 3-under on his last two holes, birdieing the par-3 eighth and closing with an eagle on the par-5 ninth, after playing his first nine holes in 6-under 30.
Senden, Garrigus and Tringale shot 4-under 31s on the front nine.
EUROPEAN TOUR: In Castellon, Spain, Paul Lawrie, of Scotland, and Ricardo Gonzalez, of Argentina, shot 7-under 64s to tie for the first-round lead at the Castello Masters, and Sergio Garcia had 71 in his return from a two-month break.
Lawrie and Gonzalez each had seven birdies in bogey-free rounds on the Club de Campo del Mediterraneo course. England's David Horsey, the winner of the BMW International in June, was one shot back after shooting 65, also bogey-free.
Garcia was two shots ahead of fellow Spaniard Jose Maria Olazabal, who was playing in his second tournament of 2010.
Former Augusta State golfer Oliver Wilson opened with 69 and is tied for 22nd. Jamie Elson, another ex-Jaguar, had 72.
Gonzalez's round gives him hope of retaining his European playing card for the 12th year in a row. The Argentine is 125th on the European money list and without a top-10 finish in the past nine months.
NATIONWIDE TOUR: In Ponte Vedra Beach, Fla., Shane Bertsch shot 6-under 64 to take a one-stroke lead after the first round of the Jacksonville Open on the Dye's Valley Course at TPC Sawgrass.
Gavin Coles, Brendan Steele, Andrew Svoboda and Rob Oppenheim are tied for second.
Augusta's Scott Parel shot 67 and is tied for 12th.
North Augusta's Scott Brown opened with 71. Aiken's Kevin Kisner shot 73 and Aiken's Stephen Poole had 74.
MONTY IN CAR CRASH: European Ryder Cup captain Colin Montgomerie bruised his left side in a four-vehicle crash Thursday and said he was lucky to escape with minor injuries.
He was driving from his home in Dunning, Scotland, to see his father in Glasgow, authorities said. No one was hospitalized in the crash.
Montgomerie said a van slammed into his car, then his car was struck by a truck and another car. He said he was pulled from the car by other drivers.
"It was a terrible shock, and I am lucky to have come out of it relatively unscathed," he said.
IMG, Montgomerie's management company, said the golfer was treated on the roadside by ambulance personnel.