Tintu Luka made best use of the conditions on a sunny Wednesday as she finished third in her 800 metres heats in a photo finish and qualified for the semi-finals at the Olympic Stadium.On a day when the entire focus was on Mary did a good job at inside the boxing ring, Tintu was not near her personal best time but the 2:01.75 enabled her to go back and sleep well tonight.The first lap in the 800 metres heats was not a good one for Tintu as she looked slow from a distance. But once she came in for the second lap, she staged a good charge and was able to finish well.There is no doubt, as one who has been protected by coach PT Usha, Tintu has been learning the tricks of the ride. In the past, she was guilty of not doing well in the closing stages of the 800m event, which was best exemplified during the Commonwealth Games and the Asian Games in Guangzhou.But on Wednesday, Tintu looked more ready for the challenges in her maiden Olympic race. When journalists caught up with Tintu, she was the usual shy self. “You please talk to my coach,” she said.It was only after prodding Tintu said: “I am happy with my performance today and am looking forward to the semi-final.”Speaking to the media, PT Usha said it was not a bad performance from Tintu Luka. “The weather was fine today but I am a bit concerned with the way she ran the first lap. But I am happy she closed itn out well,” said Usha.advertisementTintu later said: “Everyone was running close in the first lap. I then decided to pace myself and move away.”Middle distance running for the Indian woman athletes has been a strong point. From Shiny Wilson to KM Beenamol and Rosa Kutty, they have left a rich legacy behind.It is now upto Tintu Luka to carry it forward.