AUGUSTA, April 10 ― Americans Jordan Spieth and Justin Thomas harnessed new precision to play their way into contention in the second round of the Masters yesterday, finishing the day fourth and sixth, respectively.

Spieth (68), who on Sunday cracked a nearly four-year winless streak at TPC San Antonio, struggled to tame the blustery Augusta National in the first round, but reclaimed his nerve yesterday, ending the day two back from leader Justin Rose.

"Mine feels like steady progress,” the 2015 Masters champion told reporters.

"I wish that it felt like everything led into peaking here, but I'm just trying to honestly have things just move 5 per cent closer than they did last week to structurally being where I am in the swing, and I'm putting some very average swings on it, and I'm putting some good ones on it still.”

The 27-year-old, who drained a 30-foot putt for birdie on the par-four 17th, shared the fourth spot on the leaderboard with Australian Marc Leishman.

World number two Thomas (67) heads into today's action three strokes back from Rose in a six-way tie after hitting 16 greens yesterday, four more than his first-round effort produced.

A three-putt bogey on the par-four 18th was the only blemish on his day.

"Once the greens were as firm as they were yesterday, you need to be able to work it and have some different spins on the ball to get it close to the holes,” said Thomas, 27. "Today it was soft enough that you could get it close and make some birdies. It definitely helps.

"I mean, you just very rarely have a flat, level, even lie without a crosswind out here.”

The pair advanced as a number of top players, including world number one and last year's champion Dustin Johnson, were sent packing.  ― Reuters