(CNN) -- American journeyman Bo Van Pelt leads the weather-disrupted Houston Open in Texas on 11-under-par as world number two Phil Mickelson missed the cut after rounds of 77 and 76.
Van Pelt leads the way in the Houston Open despite not having won a tournament in eight years.
Van Pelt topped the leaderboard after playing eight holes of his third round, when play was eventually suspended because of darkness.
Compatriots Fred Couples, Colt Knost and Tommy Armour, and Englishman Paul Casey were all a shot adrift on 10-under-par when play was curtailed.
Sweden's Robert Karlsson, England's Lee Westwood and Australian Geoff Ogilvy were among a group of players on nine-under, while Ireland's Padraig Harrington, winner of the past two majors, was among a group of six on eight-under-par.
The third round was set to resume early on Sunday, with the fourth round to begin immediately after it was finished. Tournament organizers have been playing catch-up since Thursday -- when a thunderstorm and high winds prevented play for most of the day.
Van Pelt, who has not won on the PGA Tour for more than eight years, carded a 67 on Saturday, then birdied three of the first seven holes in his third round.
There was no such joy for Mickelson, who told reporters he felt confident for next week's Masters despite missing the cut.
"It doesn't feel like my game is far off. I'm not overly concerned with what the number showed. I'm looking forward to next week." he said.