Golfers from several points on the planet congregate at the Hawai'i Pearl Open every year. But for all the geography involved at Pearl Country Club this weekend, the $80,000 tournament is more about math. When the 176 players tee off tomorrow it will be golf by the numbers.

Kamehameha sixth-grader Donny Hopoi, one of 12 teenagers to qualify Tuesday, tees off at noon tomorrow on the first tee. At the same time, 65-year-old Dave Eichelberger, who has won six times on the Champions Tour, tees off on the 10th.

Namio Takasu, also 65, is back to try and win his third Pearl Open — for about the 25th time. The Japan pro captured the inaugural event in 1979, won again in 1984 and has returned nearly every year since.

Tadd Fujikawa, the 2007 champion, is back after making the cut at the Sony Open in Hawai'i for the second time in three years, and earning his largest paycheck ($29,237). Fujikawa had to turn down Pearl's $12,000 first prize two years ago because he was an amateur ... for six more months.

He tees off No. 10 at 8 a.m. tomorrow, with 2006 Public Links champion Casey Watabu. Two-time Manoa Cup champion Travis Toyama starts his first pro tournament 20 minutes earlier with Junpei Takayama, last seen at Sony Open. In between, Miki Saiki is in a foursome with Maryknoll senior Alex Chu.

Saiki, 24, turned pro in 2007 and won soon after, finishing ninth on the money list as a JLPGA rookie. She is ranked 56th in the world. Kumiko Kaneda, who made a JLPGA cut at 12, is also playing against the men, for the first time. She graduated from high school and turned pro last year, qualifying for the JLPGA in November.

The group after Fujikawa includes two-time Pearl champion Kiyoshi Murota, a JGTO legend who plays out of Turtle Bay, and Lorens Chan, an 'Iolani freshman 40 years his junior. Nick Mason, who won the Hawai'i State Open last year, and John Ellis, No. 1 on the 2008 Canadian Tour money list, are also in the foursome.

Punahou junior Bradley Shigezawa opens defense of his low amateur title at 8:40 a.m. He tied for sixth last year with two-time champion Kevin Hayashi, who is in the group ahead of him.