The 18-year-old began the final round at the Crowns tournament in Nagoya six shots behind leader Shigeki Maruyama but carded 12 birdies to complete a remarkable five-stroke victory.

"It's absolutely unbelievable," a beaming Ishikawa told reporters after his astonishing round. "I don't know where all those birdies came from."  Ishikawa, who captured the JGTO Tour's 2009 order of merit title, finished on 13-under 267 after birdying nine of the first 11 holes as he powered to his first victory of the season.

"Looking at the scoreboard at the end and seeing my score improve by 12 strokes... it's like a dream," said Ishikawa after a flawless display underpinned by a dazzling short game.

"I started well for the first time in four days and kept plugging away. I wanted to start with a pair of birdies and once I got to four under par I started to think I had a chance.

"Staying calm was the key," added Ishikawa, who pocketed $255,000 as well as the keys to a new Toyota car after breaking the previous lowest score on the Japanese tour by one shot.

"The record hasn't sunk in at all at this point. It will take a bit of time. Winning such a big tournament so soon in my career is also amazing."  Hiroyuki Fujita (66) and Australia's Paul Sheehan (68) finished tied for second place on eight-under 272.

Maruyama, who shot a 58 while qualifying for the 2000 US Open, closed with a 72 to slip into a share for eighth at five under.
 
Quiros clinches Spanish Open in playoff

In Sevilla, Spain, Spain's Alvaro Quiros won his fourth career European Tour title on Sunday when he defeated England's James Morrison in a sudden death playoff at the Spanish Open.

The 27-year-old from Malaga, who had been three shots off the lead overnight, won the tournament thanks to a par on the first play-off hole while Morrison double-bogeyed.

Morrison had started the final round six shots off the lead held by English compatriot Mark Foster, but he putr himself into contention with a five under par 67.

However, the 25-year-old found the water with his approach at the first playoff hole, the 432-yard 18th.

His double-bogey allowed Quiros, who finished the four rounds on 11 under, to join Seve Ballesteros and Sergio Garcia as the only home winners of the Spanish Open.

"I think it's one of the most important things in my life," said Quiros, who has moved into seventh spot in the Ryder Cup points table.
 
Monday qualifier Mayfair leads Mickelson at Quail Hollow

In Charlotte, North Carolina, Billy Mayfair shot a one-under par 71 to take a two-stroke lead after the third round of the Quail Hollow Championship on Saturday and give himself every chance of becoming the first Monday qualifier to win on the PGA Tour since 1986.

Mayfair's nine-under total of 207 leaves him scant room for error going into the final round, however, with Phil Mickelson (71) and fellow American Davis Love III (68) equal second on seven-under.

Two-time major winner Angel Cabrera (73) is among a trio three shots adrift.

"Hopefully tomorrow I can play well and take care of business," Mayfair, a five-time PGA Tour winner whose last title was 12 years ago, told reporters.

"I'm trying not to think about (winning), but obviously you put yourself in this position and you want to take advantage of it."  The 43-year-old Mayfair, the only man to beat Tiger Woods in a playoff on tour at the 1998 Los Angeles Open lost his exempt status after finishing 157th on last year's money list.

"I don't think you ever lose that (winning) feeling, even though it's been a long time," he said.

"I won Monday in the qualifier. I beat my wife last Saturday too ... I've still got a lot of golf left, a lot of players behind me.

"I kept the ball in play except for one bad drive (at the seventh) and hit a lot of good shots into the greens and kept the ball below the hole as much as I could and made the putts I needed to make."  Masters champion Mickelson was off his game but was pleased to have limited the damage in his round of 71.