Things were going according to plan for Jordan Spieth through 30 holes of the Crowne Plaza Invitational. Then, suddenly, they weren't.
After opening with a bogey-free 64, Spieth played the first 12 holes of his second round without dropping a shot. He closed, though, by playing his final six hole 5 over to plummet from sole possession of the lead to seven shots behind Kevin Na.
Nos. 3-5 at Colonial are known as the "Horrible Horseshoe," and that's where Spieth's second round was derailed. After a par on No. 3, Spieth missed a 6-foot par putt on No. 4 before a disastrous triple bogey on No. 5. His tee shot sailed into the hazard lining the right side, and his third shot failed to find the fairway. He also missed an 8-foot par putt on No. 8 after finding a bunker with his tee shot.
"Just a couple bad swings is all it was," Spieth told reporters. "It wasn't anything other than that."
Spieth was 2 under for his round and leading the tournament at 8 under before his second-nine woes, but he signed for a 3-over 73. At 3 under, he sits in a tie for 15th heading into the weekend at an event where he has cracked the top 15 each of the last two years.
"Disappointing, though, to come obviously from the lead to what will be five, six, seven back going into the weekend," he said. "It's not ideal for the finish."