With two losses and four draws so far in the 10-game contest, the Indian is trailing Yifan 2-4.
With just four games to go, Yifan now has a two-point lead to her credit and Humpy has to come out firing all cylinders to stand a chance of winning the title.
The fortunes of the Indian did not change as Yifan yet again capitalised on an erroneous plan and went on to record her second win in the match.
What turned out to be worse for Humpy is the fact that Yifan had spent several hours in the hospital the previous night of the match and yet won.
Published 22 November 2011, 15:34 IST