Alexandra and Roman Zaretsky are sitting in 12th position at the world figure skating championships in Los Angeles after Tuesday's short program in the ice dancing competition. The Israeli siblings were awarded 32.85 points for their performance, improving their season's best by more than two points. The Zaretskys, who will perform their original dance on Thursday, finished first in the Winter Universiade earlier this year and ended the 2008 worlds in ninth place. Russia's Oksana Domnina and Maxim Shabalin won the compulsory dance to take the early lead in the ice dance competition. Their sharp and aggressive paso doble earned them 40.77 points. Americans Tanith Belbin and Ben Agosto, in their first competition since Agosto injured his back, are second with 39.65 points. Canada's Tessa Virtue and Scott Moir, the reigning world silver medalists, currently sit in third. The original dance is scheduled for Thursday, and the free dance is the following day, on Friday. Aliona Savchenko and Robin Szolkowy of Germany won the short program at the pairs competition with an energetic, entertaining and technically impressive program. The defending champions finished with 72.30 points Tuesday night, putting them almost three points ahead of Russia's Yuko Kawaguchi and Alexander Smirnov.