Former champion Mark Calcavecchia fired a flawless 65 Thursday to hold a one-stroke lead when darkness halted play in the first round of the PGA Tour's BellSouth Classic.Returning from a three-week break, Calcavecchia, the 1995 winner, continued his solid play with an eagle at the par-four fifth hole from 159 yards. He added five birdies to his seven-under effort and was one shot in front of unheralded Steve Flesch and Mexico's Esteban Toledo.Six more players, including PGA Tour money leader David Duval, were two strokes back, three of them in the clubhouse and three more on the course. Duval is one of three players in the clubhouse on 67, along with Scott Verplank and Glen Hnatiuk.New Zealand's Waite, Jay Don Blake and Frank Lickliter were fiveunder on the course when play was suspended amid dusk and tornado warnings with 78 players still to finish.Tiger Woods carded a three-under 69 to lie four shots off the lead.

Defending champion Scott McCarron shot a one-under 71. Hale Irwin, who has dominated the Senior Tour again this year, is playing a rare PGA event and posted an even-par 72.