Irfan, who comfortably won the men's 20km race walk competition in the Federation Cup Senior National Athletics Championships at the NIS here, said he is geared up to take on the Chinese and Japanese competitors in the September 19 to October 4 Games.
"It is going to be a tough field with the Chinese and the Japanese among the best in the world. It is going to be a world class field and I have to give my best," Irfan, who won the event here in 1:24:27s, told PTI in an interview.
Yusuke Suzuki of Japan is the world leader of the season with a timing of 1:18:17s while another Japanese Eiki Takahashi and Chinese Zelin Cai are among the top five season leaders in the IAAF list. Irfan has a personal best and national record of 1:20:21s (clocked in 2012 London Olympics) and season's best of 1:21:09 which he did in the IAAF Race Walking World Cup in China in May.