Indian sprinter Hima Das stormed into the women's 400m final as the fastest runner in the semifinals heats on day two of the IAAF World Under-20 Athletics Championships here yesterday. The 18-year-old Das clocked 52.10 seconds to win the semifinals heat number one and led the overall time charts. She had also led the time charts in the first round heats yesterday with a timing of 52.25.

Another Indian in the fray, Jisna Mathew, however, failed to make the finals after finishing fifth in semifinals heat number 2 with a time of 53.86 and 13th overall. Andrea Miklos of Romania was the second in overall time charts in 52.58. The first two finishers in each of the four heats and the next two fastest qualify for the final which will be run today.