Move over Michael Phelps, the Beijing Olympics has another superstar. Usain Bolt entered the Olympic history books in a big way Wednesday, becoming the first man ever to break world records while winning both 100 and 200 meters races at a single Games. Showing what he can do when he runs at full speed all the way through the finish - something he hadn't done in the 100m - Bolt finished in 19.30 seconds, eclipsing the old 200m record of 19.32 seconds set by Michael Johnson at the 1996 Atlanta Games. His win ensured that when highlight films of the Beijing Games are rolled in years to come, Bolt and Phelps, who won a record eight gold medals in the pool, will share the top billing. “I feel good. I have just proved to the world I am a true champion and with hard work anything is possible,” Bolt told BBC television. China continues to hold a commanding lead on the medal table with 45 compared to 26 for the United States and 16 for Great Britain. Also at the Bird's Nest, Melaine Walker of Jamaica won the gold medal in the women's 400-meter hurdles in an Olympic record. Earlier, Larisa Ilchenko took advantage of a British duo's hard work by swimming closely in their wake. She then sprinted to a gold medal in the final stages of the first women's 10-kilometer marathon swim. At the Olympic rowing basin, the Russian finished four grueling laps in 1 hour, 59 minutes, 27.7 seconds. She let leaders Keri-Anne Payne and Cassandra Patten do the hard work in front, then made her big move for the historic gold medal, reaching up to slam the yellow touchpad first. Ilchenko's strategy has helped her dominate open water swimming since 2004, winning five consecutive 5k world championships and three consecutive 10k races. Natalie du Toit of South Africa, an amputee who removed her carbon-fiber prosthetic left leg before diving in, finished 16th - 1:22.2 behind Ilchenko's winning time. Synchronized swimmers Anastasia Davydova and Anastasia Ermakova won duet gold medals in two straight Olympics. Performing a perfect free routine to the classic Peer Gynt Suite before a near capacity crowd at the Water Cube, the Russians won with a combined 99.251 points. The pair received all perfect 10s for technical merit. In golds also achieved on the water - at the sailing venue in Qingdao - Yin Jian won China's first-ever sailing gold medal in women's RS:X, a windsurfing class. Tom Ashely of New Zealand won men's gold in the same class. World champion Ramazan Sahin of Turkey won the 66-kg freestyle wrestling gold medal. Buvaysa Saytiev of Russia matched his golds of 1996 and 2004 by defeating Soslan Tigiev of Uzbekistan 0-1, 1-0, 3-1 in the 74-kg class. Chinese world champion Wu Jingyu won the women's under 49-kg class on the first day of the taekwondo competition, and Afghanistan got its first Olympic medal, winning a bronze in men's under 58-kg. Guillermo Perez of Mexico won the men's under 58-kg gold in a decision over Dominica's Yulis Gabriel Mercedes. Rohullah Nikpai of Afghanistan won one of the two bronzes for men - and his country's first Olympic medal ever. – AP __