John Jacobs rode an eagle to a 4-under-par 67 today and a one-shot lead entering the final round of the Toshiba Senior Classic.

Jacobs holed out his second shot on the par-4 11th hole, then finished the third round 8-under at 134. He is seeking his second victory this year and third of his senior career.

Jacobs joined the senior tour in 1995, but he didn't win until the Nationwide Championship last June.

"Golf is just something I could do well," Jacobs, 54, said in reference to his limited career on the regular tour. "But thank God for the Senior Tour. It's given me a second chance, and I like the dollar amounts they are giving away out here."

Jacobs highlighted his round by chipping in from 65 yards on the 344-yard 11th hole. He then birdied the 12th and 13th to get to 10-under par.

"But I gave away four strokes at the end," he said. "If I'd finished the last five holes at all, I could have pulled away from the field. It was the worst finish anyone could have.''

Over the final five holes, Jacobs failed to birdie either of the two-par 5s and double bogeyed the par-3 17th hole.

Al Geiberger fired a 66 to pull into a tie with Dana Quigley and Gary McCord in the $1.2 million event. Quigley's 67 gave him a two-day total of 135.

McCord, making his first start this year, shared the lead after Friday opening round with Jacobs and two others. Today, he had a 68.

Allen Doyle's 68 left him at 6-under and in sole possession of fifth place.

Defending champion Hale Irwin is tied with Tom Wargo, Tom Jenkins and Walter Hall at 5-under.

Irwin shot 69 on the par-71, 6,584-yard Newport Beach Country Club course.

Geiberger earned $15,000 by winning the MasterCard portion of the tournament. The MasterCard portion covered the first two days of the three-day event and is open to players 60 and older.

Geiberger's two-day total of 135 left him four shots ahead of Butch Baird.

Geiberger was delighted to have his son, John, golf coach at nearby Pepperdine University, caddie for him this week.

"I have a lot of confidence in his judgment," the elder Geiberger said. "His game is just like mine and he's very good at reading the greens."

Both Geiberger and Jacobs attended and played golf at the University of Southern California.

"He's probably the longest hitter on the tour," Geiberger said of Jacobs. "I played on the regular tour with his brother, Tommy. But John is making his golf career on the Senior Tour."

McCord, a golf analyst for CBS, chipped in from 10 yards off the third green for a birdie, but bogeyed the next hole. He carded three birdies and a bogey on the back nine, 3-putting from 50 feet for the bogey.

"I just wanted to get back into the hunt," McCord said. "It's a lot of fun but I'll just see what I can do tomorrow."

McCord is looking for his first win on either of the PGA Tour or the Senior Tour in more than 400 attempts.