BERLIN (AP) – David Rudisha of Kenya broke the men's 800 metre world record yesterday, clocking one minute, 41.09 seconds just minutes after Caster Semenya successfully returned to the Berlin Olympic Stadium to win the women's race at the same distance.

Rudisha powered home to beat the mark of 1:41.11 set by Wilson Kipketer of Denmark on August 24, 1997, in Cologne, Germany.

"I met him last year and he told me, 'I can see you have a future in the 800, you can beat the world record'," Rudisha said of Kipketer, who was born in Kenya.

"He encouraged me to go for it."

Rudisha broke the record at the same stadium where he was just a semi-finalist in the 800 at last year's World Championships.

"I was very disappointed last year, but the weather was so cold then," said Rudisha, a 21-year-old former world junior champion.

"I knew that I would be fast today and that I am in good shape. I was just hoping the weather would be good. It was a bit windy, but otherwise it was perfect," he said.

Rudisha was already the second fastest two-lap runner in history after clocking 1:41.51 in Belgium in July.

Once the pace maker dropped out after the first lap, Rudisha ran alone against the clock.

"I saw I was inside world record pace in the final straight and I just went for it. This was really the first time I tried to break the record," Rudisha said. " . . . Now my next steps are to win world and Olympic titles."

While Rudisha did not have good memories of his previous visit to Berlin, the Olympic Stadium was the site of Semenya's triumph at the world championships last year. She subsequently missed 11 months of competition while undergoing gender tests.

"I still feel the same, but it was not easy for a 19-year-old girl to go through what I've been through," Semenya said after cruising home in 1:59.90. "I ran a good time, I felt at home," said the South African, who was greeted warmly by a crowd of nearly 50,000 at the Olympic stadium.

The teenager surged ahead in the last 50 metres to cross the line in under two minutes in her third race since she was cleared to run again in July. She competed in two minor races in Finland before getting invited to run in Berlin.

Semenya hopes to make South Africa's team for the Commonwealth Games in October.

She was 4.5 seconds slower than her winning time of 1:55.45 in Berlin last year.

Semenya was at the back of the pack during the first lap, then started increasing the pace and passing her rivals.

"It's been a long time since I raced a fast race. I just tried to go with them, to feel comfortable. I was just looking for the last 100 metres," she said.