Thanks for the screencaps, peach!  It makes it so much easier for us mere mortals!   After studying them, here's my thoughts:
~The team running away appears to be Andi & Jenna.  
~ I dont think Brook & Claires hair looks particulary wet.  Sweaty maybe, but not as if they have been swimming in a lake, so I think this task is before the other one.
~I think this is a Roadblock. Just the way Claire was doing all the work, and Brook was doing nothing more that "vocally supporting" her makes me think that Brook could not help her.  I also think it could be a reason Brook didnt rush right to Claire when she got hit.  However....
~If this is a detour, could there be another task set up behind Brook?
~Most of the piles of watermelons look about the same size, and we only see one knight down (having been knocked over by Andi & Jenna now runing away?), so either Brook/Claire made it here before alot of other teams, or most teams chose the other detour.
~I think the baseballed cap head in caps 7,8 & 9 is a cameraman.
~I think the woman first to Claire (cap 20& 21) is also production.  At first, I thought it was one of the costumed characters, but with the screencaps, it looks less like a costume and more like a jacket tied around someones waist.  I dont think it's Mallory, because we dont see her in any of the other shots.  I think that if she was doing the task at the same time as Claire, we would have seen her in the wide shots. 
But then again, what do I know? I'm still new at all this  
