Togo: Ryo Ishikawa shot a 12-under 58 the lowest score ever on a major tour to win The Crowns on Sunday for his seventh Japan Tour title.
The 18-year-old Ishikawa, six shots behind leader Shigeki Maruyama at the start of the round, had 12 birdies in his bogey-free round at Nagoya Golf Club.
After opening the tournament with rounds of 68, 70 and 71, Ishikawa birdied nine of the first 11 holes in the final round.
He added three straight birdies from the 14th and closed with two pars to finish at 13-under 267, five strokes ahead of Hiroyuki Fujita and Australia`s Paul Sheehan.
The previous low score on the Japan tour was a 59 recorded by Masahiro Kuramoto in the first round at the Acom International in 2003.