Figure Skating : Two Soviet Teen-Agers Win Pairs

Soviets Sergei Grinkov and Ekaterina Gordeeva put on a lively, well-synchronized long program to win the world pairs’ skating championship Tuesday.

Their victory completed another big day for the Soviets at the 1986 World Figure Skating Championships.

Earlier, Alexander Fadeev continued to zero in on his second world title, winning high marks for a fast, high-flying short program, and Kira Ivanova took an early lead in the women’s compulsory figures over American challenger Debi Thomas.

Eight out of nine judges awarded the top score to Grinkov, 19, and the 4-foot-10 Gordeeva, 14, as they ousted reigning world champions Elena Valova, 23, and Oleg Vasiliev, 26, also of the Soviet Union.

The new world champions finished with a factored place score of 1.4, followed by Valova and Vasiliev with 2.8. Canadians Cynthia Coull, 20, and Mark Rowsom, 26, moved up into third place at 4.6, while Soviet couple Larisa Selezneva and Oleg Makarov fell to fourth at 5.2.

Denise Benning and Lyndon Johnston of Canada were fifth with an 8.4, while close behind at 8.6 were Americans Jill Watson, 22, of Bloomington, Ind., and Peter Oppegard, 26, of Bloomfield Hills, Ind.

Fadeev, 22, finished second in Tuesday night’s short program to maintain his lead in the men’s singles at 1.4. Brian Orser, 24, the six-time Canadian champion, skated away with the short program but was only able to move up to third place with a combined score of 3.4. European champion Jozef Sabovcik, 22, of Czechoslovakia, was in second place at 2.8.

American national champion Brian Boitano, 22, of Sunnyvale, Calif., held the fourth spot at 4.4.

In the women’s compulsory figures, Ivanova, 23, of Moscow, earned a factored place of 0.6 after the three figures. Thomas, a Stanford University medical student, emerged second with 1.2.

The scores are determined by multiplying .6 times their ranking.

Defending champion Katarina Witt, 20, of East Germany, seeking her third consecutive world championship, was third with a 1.8. In fourth position was 1985 U.S. champion Tiffany Chin, 18, of Toluca Lake, Calif.