Patrick Reed within one shot of Paul Casey, Ian Poulter at Honda Classic

PALM BEACH GARDENS, Fla. — Ian Poulter finally made a mistake – and former Augusta State All-American Patrick Reed was ready and waiting. Then Reed gave it back two holes later.

After a wild final 45 minutes of Sunday’s abbreviated fourth round of the Honda Classic, Poulter and Paul Casey emerged as co-leaders.

Reed stumbled on his final hole of the day with a bogey and is one shot back.

Most of Saturday’s third round was washed out, making for a long day Sunday as the field tried to get in as much of the final 36 holes as possible. Reed and Poulter played 25 holes before play was suspended by darkness. They will pick it up this morning at 8, teeing off on the eighth hole.

Reed and Poulter, who are paired together, will have 11 holes left, while Casey will have nine.

Phil Mickelson, Daniel Berger, Jeff Overton, Brendan Steele and Russell Knox are three shots back. Berger has seven holes left, Overton has eight and Mickelson, Steele and Knox have 10.

With less than an hour left before darkness Sunday, Poulter was cruising along with a three-shot lead through four holes of the final round.

After avoiding bogeys for 25 consecutive holes, he shanked an 8-iron on par-3 fifth hole into the water. He ended up with double bogey, and Reed rolled in a 34-foot birdie putt from off the green to tie him.

Asked what he was thinking after the shank, Poulter said “You don’t really want to know – trust me, you don’t. It’s not for newspaper or Internet worthy. … I was seriously pissed.”

On the next hole, Poulter’s tee shot found the water on the left and led to a bogey. Reed made par to take a one-shot lead. It didn’t last long.

After what Poulter called “a bit of a body blow” on Nos. 5 and 6, he rebounded on the on the par-3 seventh. He knocked his tee shot to 3 feet of the hole and made birdie.

“That was fueled with adrenaline, because I was so pissed off,” Poulter said.

On the same hole, Reed chipped his second shot from just off the green and missed his 7-foot par putt. Up ahead, Casey made a 6-foot birdie putt on No. 9, his final hole, to tie Poulter for the lead. The co-leaders are at 7-under for the tournament.

Casey was 4-under for the nine holes of the final round he played. Poulter was 2-over and Reed was even par for the seven holes they played.

Earlier in the day, Reed shot 70 in the third round to leave him three shots behind Poulter (66) entering the final round. Casey had a third-round 68 and was six shots behind Poulter.

Reed wasn’t on his game but still managed to play his 25 holes in even par. His third round of even-par 70 was his tour-leading 21st consecutive round of par or better this season.

Reed had already shaken off the bogey on his final hole by the time he got to the parking lot.

“Just a loose tee shot, which I’ve hit a lot of those today, and I’ve been scrambling and scrambling,” he said. “I happened not to get one (a par) there, but I’ve got a lot of holes left and I’m only one back. Anytime you have a chance to win the tournament, it’s always good.”

With a win today, Reed would have his fifth title before age 25, move to the top of the FedEx Cup points list and make his debut inside the top 10 in the world ranking. If he does win and repeats as the champion this week at Doral, he would back up the “top five in the world” boast he made after last year’s win at Doral and move into the top five. He’s currently 16th.