New Delhi, Oct. 11 -- "One punch, back and long," India's coach Raffaele Bergamasco shouted out to MC Mary Kom from the corner, during the first round of her quarter-final against Colombia's Valencia Victoria at the world championships in Ulan Ude, Russia, on Thursday.

Those five words were all he needed to capture the spirit of Kom's new strategy in the ring: hit accurately, retreat, and then control the fight from a distance, landing punches from the counter.

In the next two rounds, Kom's corner hardly had to say a word-so complete was her control in the ring.

Valencia threw fast combinations, but to no effect-Kom was always out of reach, and then she was coming in, using straight rights, and a powerful right hook, even though Kom is a...