Steve LeBrun carded his second straight 3-under 68 on Friday to grab a share of the lead at the RBC Heritage before second-round play was suspended due to rain.
With the overnight leader out of the picture, Brandt Snedeker fired a 9-under-par 63 on Saturday to jump ahead by a stroke through three rounds of the Canadian Open.
Graeme McDowell tripped to a bogey at the 18th to force a playoff with Webb Simpson, but atoned for his mistake by parring the first playoff hole to win the RBC Heritage.
Hunter Mahan finished off an eight-under 64 to take a one-stroke lead after the first round of the WGC-Cadillac Championship was completed Friday morning.