SPRINGFIELD, Ill. - Second-year LPGA golfer Ji Young Oh won her first tournament yesterday, sinking a 6-inch putt for par to win the State Farm Classic in a playoff over rookie Yani Tseng.

A day after the tournament lost its marquee player, Michelle Wie, to disqualification, the sudden-death playoff injected life into what had been an ordinary final round.

Oh and Tseng finished regulation at 18 under par.

Tseng, the leader coming into yesterday, chipped her third shot over the green and into the rough, then pitched her ball to about 6 feet from the cup.

But Oh's third shot, from just inside the rough, left her with the tap-in that gave her the win.

Tseng shot a 66 in each of the first three rounds before her par 72 yesterday.

Oh shot a 66 each of the first two rounds to stay just behind the leaders. Then she shot a 69 Saturday to set herself up just behind Tseng.

Elsewhere:

PGA TOUR: Richard S. Johnson birdied three of his last four holes to shoot a 6-under-par 64 and win the U.S. Bank Championship in Milwaukee for his first PGA Tour victory.

Johnson finished at 16-under 264 on the 6,759-yard Brown Deer Park Golf Course.

Johnson, the first round leader after shooting a 63, sank a birdie putt of about 12 feet on the par-4 17th hole to break a tie with Ken Duke at 14-under. He then birdied the par-5 18th from less than 2 feet.

Duke shot 65 to finish second at 15 under. Dean Wilson (65), Chad Campbell (65) and Chris Riley (66) tied for third at 13 under.

CHAMPIONS TOUR: R.W. Eaks was the runaway winner in the 3M Championship in Blaine, Minn., posting the lowest score in the tournament's 16-year history.

Eaks shot a 7-under 65 in the final round to finish with a 54-hole total of 193, four shots better than Ed Dougherty's finish in 2000. Gary Hallberg and Bernhard Langer tied for second at 17-under 199 for the tournament.