Only three races of a scheduled six-heat regatta were completed, but Tom Linskey of Newport Beach, Calif., won two of them and was awarded the top medal in the third annual Championship of Champions today.

Race committee chairman Bill Bentsen said that an official winner could not be declared because the required minimum four races were not completed.

The regatta's first race on Thursday afternoon was overwhelmed by 60-knot gusts in a squall line that capsized the entire fleet of 20 Buccaneer 18 sloops.

While there were no injuries to any of the two-person crews, a few boats suffered mast and sail damage and the race committee canceled the two races scheduled for Friday in order to give the maintenence team from Chrysler Corp., which furnished all boats, time to make repairs.

Linskey, who is national champion in the Coronado 15 class, finished fourth Thursday, but won both races sailed Saturday. Hus crew is Jeff Lenhart.

Two races were scheduled for today, but the seven-knot north wind in the morning gave way to a near calm at noon, making it impossible to finish the first race within the three-hour time limit. Since no race could be started after 12:30 p.m., that meant the end of racing for the day and the regatta.

FINAL STANDINGS

1, Linskey/Lenhart (Coronado); 2, Freeman/Mathias (Flying Dutchman); 3, Millican/Campbell (470); 4, Fries/Klein (Force 5); 5,White/Gililand (Thistle); 6, Taylor/Perry (420); 7; Fisher/Fisher (Lightning); 8, Eagan/Turnipseed (Flying Scot); 9, Koch/Sweitzer (Sea Scow); 10, Young/McKenzie (Butterfly); 11, Loufek/Glaser (Prindle 16); 12, Frytag/O'Keef(M-00); 14, Hobden/Pointe (Albacore); 15, Wade/Clark (San Juan 24); 16, Loring/Wilkins (Y-Flyer); 17, Hamer/Hamer (Buccaneer); 18, Mowbray/Mowbray (Rebel); 19, Simonds/Simonds (Jet 14)20, Flock/Flock(Day Sailor).