WINDERMERE, Fla. - Jordan Spieth had been down this road before.

Three years ago at Isleworth, he was making the turn in the final round when he looked over at the scoreboard on the 18th fairway that showed he had a big lead. So it was eerie when he caught himself doing the same thing yesterday during the final round of the Hero World Challenge. But there was one big difference.

Back then, Spieth was a freshman at Texas and won by eight shots in the Isleworth Collegiate Invitational for his first college title. This time, he beat an elite field that included tournament host Tiger Woods, six major champions and 16 of the top 30 players in the world.

And he beat them even worse.

Spieth capped off a big finish to his second season as a pro when he closed with a 6-under 66 and set two tournament records to win by 10 shots over Henrik Stenson. Staked to a seven-shot lead in the final round, he opened with three birdies in four holes and turned the final 3 hours into a peaceful walk along the lakes and palatial homes of Isleworth.

"It was the most fun I ever had playing nine holes of golf," Spieth said.

Spieth had an 11-shot lead after nine holes, ripped a drive over the corner of the bunker and then glanced at the lone leaderboard. And then he made another birdie. He coasted from there and even with a careless double bogey on the back nine, he finished at 26-under 262 to break the tournament record of 266 set by Woods in 2007 and Davis Love III in 2000, both at Sherwood Country Club in California.

The 10-shot victory was the largest margin of the year in golf, and broke the tournament record of seven shots that Woods had in 2007.

"Whether my emotions showed it or not I'm not sure, but inside we were really very pleased with the year and how it came to a close," Spieth said. "This caps off the best golfing year that I've ever had."

Spieth had set a goal of two wins, and that looked out of reach when he began the last leg of a long journey. He finished one shot out of a playoff in Japan, won the Australian Open by six shots and then turned in another dominant performance.

Woods, in his first tournament in 4 months while recovering from back injuries, stubbed two more chips on the 13th hole for a triple bogey and closed with a 72. He tied for last place in the 18-man field with Hunter Mahan, 26 shots out of the lead.