It's a birdie at the first for England's almost forgotten man Paul Casey, who moves to -4, as news reaches me that Jordan Spieth would be the 13th Texan to win the Masters. Woods off tee at 13, clatters into the jungle...

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Woods has got a long old putt for birdie at 12... didn't hit it, it was bang on line as well. It's a second-round 69 for 2009 champion Angel Cabrera, the Argentine is two off the clubhouse lead on -3.

Matthew Burnett: If anyone thinks Jordan Spieth can't be caught, you have not watched enough Masters, long long way to go.

Tim Southon: Spieth is so in the zone.

M Becker: His golf is leaving me 'Spiethless'.

Ali Moore: Spieth may as well give Hamilton Tailoring Company of Cincinnati his jacket measurements now (They make the Green Jacket).

Jordan Spieth is opening up a gap the size of Texas between him and the field. This is a charge to behold.

If he does close out in the next couple of days his home state of Texas will have 13 Green Jackets, more than any other US state.

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Image source, Getty Images

Donaldson from just off the green at 12 and he's thinned it over the green and very nearly into Rae's Creek. Ernie Els in with a level-par 72 for five under overall and eight off the lead. He had a real rough trot in the middle of his round but managed to assert some control down the stretch.

The second is yielding plenty of shots today and Adam Scott is the latest to make hay, his birdie moving him into the red. A 76 for 1988 champion Sandy Lyle and his hickory-shafted putter, his race is run.

Tough baptism for Scottish amateur Bradley Neil, at 19 the youngest man in the field - a 79 today to go with his 78 yesterday, he won't be around this weekend. He will, however, remember this week for as long as he lives. Woods with a solid tee shot at 12.

Tom Fordyce
Chief sports writer at Augusta

"Warnings among locals that forecast rain is coming in fast. Wind picking up. McIlroy teeing off in about 20 minutes. Ominous."

Tiger stalks his ball, crouches down to take a better look, takes aim and curls it in to claim a birdie at 11 and get to -2. Woods looking in pretty good nick at the moment, that takes him into a tie for 13th.

Shane Daly: If Spieth finishes 15 under by the end of day, he can afford to par Saturday and Sunday's rounds amd may still win it. Top golfing.

Jeff Murray: Spieth uncatchable, except history teaches us never to count our chickens as the unexpected always seems to happen at Augusta!

Defending champion Bubba Watson has birdied the par-five second to get to two under. Spieth, having taken his medicine after an errant drive, reaps the benefits, curling in another birdie to get to -13. That record of Ray Floyd - 131 for two rounds at Augusta - is looking seriously under threat...

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Spieth wedges in at 13, has a 10-foot birdie putt. Here's Tiger Woods playing into 11... and what a shot that is, out of some nonsense, as is often the case nowadays. Sprayed it right off the tee, apparently...

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Stenson's second at 13 is a peach, as well it might be, it took him about 10 minutes to choose a club. Ernie Els has got eight feet for a birdie at 18, which would get him back to six under and one under for his round.

Jamie Donaldson tearing it up round the turn, he's just made another birdie at 10 to get to one under. Garcia out in 40, it ain't gonna be his week...

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McDowell stopping the rot around Amen Corner, another birdie on 13 gets him back to +1. Spieth playing from the pine straw on 13, he has to decide whether discretion is the better part of valour... which he does, he had a tree hampering his swing...

Mark O'Meara, winner in 1998, is rolling back the years - birdie at 15, four under for the day and three under for the week. It's all gone wrong for Thongchai - the Thai was rocking and rolling on the outward nine but has just tripled the 11th to drop back to two over. What a ruddy nightmare.

Spieth on tee at 13 and he's sprayed that right, although it looks good enough. Woods out in 34, it looks like the four-time champion will be around at the weekend, which is some feat given the amount of golf he's played of late.

Spieth's birdie attempt at 12 misses by a whisker's whisker, he stays -12 and five clear of Hoffman. Westwood makes eagle at two, the Englishman is one under par. Wales's Jamie Donaldson also going well, he's out in 34 and level overall.

Spieth has a makeable putt for birdie at the par-three 12th. Angel Cabrera likes it round Augusta, of that there is no doubt - the 2009 champion eagled 13, birdied 15 and is now two under. The burly Argentine could open a crystal glass museum in Cordoba, given the amount of eagles he's bagged round Augusta.