It was a double ko (Batgirl feel a few seconds after Shiva) in a fight which took place after Shiva used some quasi mystical chi feat that she prepared for 3 years to accomplish and apparently could never do again... I think its safe to say Shiva wasn't at her best in the fight.
DS wins, physically he is too much for Shiva to handle but have a large skill edge she can pull out a few wins.