Jordan Spieth (-14) sets 36-hole record at Masters

— -- AUGUSTA, Ga. -- So much for all that Augusta National lore as it relates to needing experience around the storied course. At least in the case of Jordan Spieth, youth is not an obstacle in the least.

A year after finishing second in his first appearance at the Masters -- and playing in the final group alongside eventual champion Bubba Watson -- Spieth is threatening to run away with the year's first major championship.

After an opening-round 64, Spieth followed with a 66 to finish 36 holes at 14-under 130. He leads Charley Hoffman, who shot 68, by five strokes, matching the largest halfway lead in Masters history.

Spieth also broke Raymond Floyd's 36-hole scoring record by a stroke and matched at 130 the major championship record held by Martin Kaymer, Brandt Snedeker and Nick Faldo.

"It's cool," Spieth said. "Anytime you can set a record here is pretty awesome. I'm very excited about today and the way I struck the ball. I struck it I thought better than yesterday. Didn't rely on the [good] breaks as much. Very pleased."

Each of the previous three players to lead by five through 36 holes --  Herman Keiser (1937), Jack Nicklaus (1975) and Floyd (1976) -- went on to win. Tiger Woods led by nine through 54 holes in 1997.

Woods was 3 under on Friday. He is 2 under for the tournament, staring at a 12-shot deficit in his quest for a 15th major.

Spieth, 21, would be a senior at the University of Texas had he not elected to turn pro in the fall of 2012.

Since then, Spieth managed to earn PGA Tour status in 2013 despite failing to make it through the qualifying tournament, won his first tournament at the 2013 John Deere Classic, was picked for the U.S. Presidents Cup team and has three worldwide victories in his last 11 events dating to the end of 2014.

That includes nine top-10s, with a victory at the Valspar Championship, a runner-up finish at the Valero Texas Open and a playoff lost week at the Shell Houston Open in his three starts coming into the Masters.

"I feel comfortable this week," Spieth said. "I haven't really felt very nervous. I've felt in a good place."

Spieth has 15 birdies through two rounds -- one more than he had through 72 holes a year ago. And he's made just a single bogey.

"He is very impressive," said Henrik Stenson, who played with Spieth during the first two rounds. "The strongest part of his game over the time that I've known him over these last couple of years is definitely his putting and pitching and wedge game. When he's playing obviously as he is, he hits a lot of fairways and greens and sticks the other ones in there close as well.

"But his putting is the one thing that stands out. He's made so many great putts."

Yet he missed makeable birdie putts at the ninth and 18th holes that would have made the round even better.

Spieth birdied all four par-5s and whenever he was seemingly in trouble managed to make the best of the situation. For the day he hit 13 of 18 greens but needed just 25 putts.

Not bad for a guy who has just six competitive rounds at Augusta, the place where no Masters rookie has won since Fuzzy Zoeller in 1979.

"Seems like there's been quite a few guys who have had success at a young age," Spieth said. "I think Seve [Ballesteros] won it when he was 23 and Tiger at 21. Obviously I'm not comparing myself to those guys in any way ... but it means it can be done.

"I got the awe factor out six months before I even played the first time. To get here and play rounds ahead of time, to play the golf course I grew up watching and admired. And after getting into contention last year and seeing what Sunday in the final group was like, now it feels more like a regular event."