Georgi was timed in one hour, 34 minutes, 45 seconds, crossing the finish line almost six minutes ahead of runner-up Frank Pugliese, who was clocked in 1:40:36.
Steve Renstrom came in third with a time of 1:47:56.
Rehman's time of 1:53:25 put her over the finish line well ahead of second-place finisher Colleen Shibata, who was timed in 2:01:45.
Ann Baginski took third place with a clocking of 2:02:41.
In the 75-and-over division, Naoto Inada set a course record with a time of 2:34:10.
Kop and Lee were tied at 142 after finishing 36 holes.
Kelly Mau won the women's division with a net 140.
A flight honors went to Clinton Lee (155), Denis Leong (165) took B flight and William Winkle (171 topped C flight.
Sunny Garcia of Hawaii lost in round four.
Another Hawaii competitor, Ken Wheeler, won the high jump in the 75-79 age group with a leap of 3 feet, 9-1/4 inches.
The tournament will be played at The Tennis Garden and The Village Tennis Center at Kapalua.
The Open, in its 16th year, features the largest purse in Hawaii.
Spectators are admitted free.
The entry fee is $45, which includes two events, player's gift packet and admission to the players' party Aug. 31.
For additional information, telephone (808) 669-5677.