Doha: Asian track stars Liu Xiang and Maryam Yussuf Jamal completed Asian Games doubles here on the final night of the athletics competition.

China's Liu cruised to his second 110 metres hurdles title and achieved his pre-Games ambition of running a new Games record of 13.15seconds.

Ethiopian-born Jamal had an even easier time as she won the 1500m to go with the 800m title she won a few days ago.

Liu's compatriot, Asian polevault record holder Gao Shuying also retained her title on another golden night for the Chinese which ensured they finished top of the athletics medal table.

Thailand's men retained their 4x100m relay title in a thrilling finish where they beat the Japanese by one-1,000th of a second while India's women retained their 4x400m relay crown which had the mainly Indian crowd on their feet.

Saudi Arabia continued the trend by successfully defending their men's 4x400m relay title.

There were also early birthday presents for two of the other gold medal winners as Kenyan-born James Kwalia, who will be 20 on Thursday, took the 5000m for Qatar and collected a 70,000-dollar bonus from the Qatari authorities and team sponsor.

Kwalia's minor medallists were also former Kenyans meaning that on the track all the men's medals in the middle distance to distance races went to African-born athletes.

Whether South Korea's Park Jae-Myoung receives such a windfall is doubtful but he will take home a gold from the men's javelin and an extra reason to celebrate his 25th birthday on Friday.

World record holder and Olympic champion Liu, 23, didn't rattle a hurdle as he beat compatriot Shi Dongpeng, who was fourth in the 2002 final, while Masato Naito of Japan took bronze.

"I felt no pressure coming into this race," said Liu, who smashed the world record he shared with Welshman Colin Jackson in Lausanne in July with a mark of 12.88sec. It's great to win the Asian Games. The Olympics are world famous but the Asian Games remain Asia's main competition," he said.

Liu admitted that he had said a little prayer to himself before the final.

"I said to myself: 'Please lower the height of the hurdles, help me'. This is one way to give me confidence," he said.

"However, I don't want people to think that the athletics at the Asian Games was all about me,"  he said.

Jamal was without peer in her event, a reputation fostered by her world ranking of two and her World Cup victory in Athens in September.

The 22-year-old, who failed to obtain either Swiss, French or American citizenship before opting for Bahrain, was at pains to insist she enjoys running for the Gulf State.

"The tactics were to go out from the beginning. The 800m was a little difficult but this race was very easy," she said.

"I expected it to be easy and I expected to win. I feel comfortable wearing the Bahraini tracksuit. I am Bahraini. Let the people say what they want. I don't care," she said.

Kwalia too couldn't have cared less what people thought about where his loyalties lay.

"I am very happy and very proud to have won," he said.