Jordan Spieth is providing a golfing master class while Jason Day’s tilt has stalled early in the second round of the Masters at Augusta National.

Spieth has kept his foot on the floor after a blistering eight-under 64 on day one, pushing to 12 under for the tournament through 12 holes of his second round to hold a five-shot lead.

American Charley Hoffman is out seven under through eight holes of round two to be second alone and veteran Ernie Els is third at five under through 17.

Day, who started the round just three off the pace, has dropped a distant eight shots back thanks to playing his opening eight holes in one over par.

The Australian is now in a tie for fourth with Justin Rose (one hole).

Day opened his round with a three-putt bogey on the first but he seemingly wiped out the problem by hitting a stunning approach to five feet on the par-five second before coaxing in the eagle putt.

He held firm for three holes with pars, the last an impressive save from a tough bunker lie, but then three-putted the sixth green for another bogey just as Spieth pushed forward with birdies.

Leaving his approach on the seventh short despite a great drive compounded his misery and the 27-year-old failed to get up and down from the sand to drop another shot.

Spieth is bogey-free in round two, notching up birdies on the second, fifth, eighth and 10th holes.

John Senden is the next best Australian at one under par through 10 holes, joined by 14-time major winner Tiger Woods (nine holes) and world No.1 Rory McIroy (yet to start).

Adam Scott (yet to start) and Geoff Ogilvy (17 holes) sit at even par while amateur Antonio Murdaca will start his second round at six over.