Jordan Spieth hit 2 straight shots into the water to blow a huge lead at the Masters

CBS

For Jordan Spieth, it looked like the back-9 would be a coronation. Instead it was a complete meltdown.

After birdies on the final four holes of the front-9, Spieth moved to 7-under and opened up what looked like an insurmountable 4-stroke lead. Social media rejoiced what seemed like a foregone conclusion - Jordan Spieth had just won his second-straight Masters.

Not so fast.

Spieth then bogeyed Nos. 10 and 11 to fall back to 5-over. At the same time, Danny Willett birdied back-to-back holes to pull within one shot of the lead.

And then the 12th hole happened.

Spieth hit his drive on the par-3 into the water.

Spieth then dropped for what would be his third shot. He moved back to 80-yards out so that he could take a full swing. 

He chunked it and the ball barely even reached the water.

Unbelievable.

Spieth eventually needed seven strokes to finish the hole, a quadruple-bogey. 

Here is the shot tracker.

Masters.com

In the span of about 45 minutes, Spieth went from 7-under and seemingly cruising to another major title, to 1-under and three strokes off the lead.