In a shock performance in the world of junior golf, 16 year old Jason Spieth has been knocked out of the US Junior Amateur Championship at Egypt Valley Country Club, by unknown golfer 14 year old Robby Shelton.

In a championship that everyone tipped him to win, Spieth lost in the second round of his matchplay.

In front of a stunned gallery, Speiths finish was quite out of character. One up with two still to play Spieth failed to birdie the par 5 17th and then three putted on the 18th, losing both holes and his match.

Spieth, the defending champion played on the PGA tour this year in the Byron Nelson Championship where he tied for 16th place.

Spieth could offer no explanation for his performance , that now denies him the chance to regain his No. 1 ranking in the Junior Golf Rankings which he lost three weeks ago.

“Nothing felt on today, and you can’t hold it together” he said” You can’t shoot 4, 5, 6 under par for six rounds straight; it just doesn’t happen,” “If you can win on your off day, you’re in good shape. And unfortunately, it ended like that.”