Ben Curtis's march toward the five million-dollar Booz Allen Classic title was interrupted - at least temporarily - when rain halted play on Sunday.
Curtis, looking for his first PGA win since the 2003 British Open, widened his lead to eight strokes with seven holes to play before the threat of storms suspended Sunday's final round.
The round was to resume on Monday morning, with Curtis well in front of Padraig Harrington, who is through 13 holes. There were 46 players still on the course.
Looking for a wire-to-wire win, Curtis began the day five shots better than Brett Quigley and extended his lead with four birdies on the front nine of the par-71, 6,987-yard TPC at Avenel.
He was at 23-under-par, which would be a tournament record.
The win at the British Open may have been a case of too much, too soon for Curtis, who has waited longer than expected for another victory.
In 2004, Curtis had only one top-10 finish and missed the cut in 11 of 20 starts. Last season was no better as he started with nine missed cuts in his first 10 events and totaled 16 of 24 overall.
After two top-four finishes last year, Curtis had finished no better than 20th this season - until arriving here, where he has run away from the field.
Curtis opened with a 62 on Thursday - one off the course record - and has only one bogey through the first 65 holes, a six at the par-five 13th on Friday.
Harrington, who finished a season-best fifth at last week's US Open, had three birdies and an an eagle at the par-five sixth hole to gain sole possession of second place.
There five players were at 14-under, including Australian Nick O'Hern, Billy Andrade and Steve Stricker, who were still on the course.