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  • PowerChalk releases video from USA Diving Grand Prix
  • Motion analysis website PowerChalk.com has releases footage from the 2012 AT&T USA Diving Grand Prix as free premium content.
  • PowerChalk, LLC, in partnership with USA Diving, has released video clips from the 2012 AT&T USA Diving Grand Prix to the premium content section at w ...
  • May 23, 2012