Originally it was going to be a tennis ball inside a sarong (a la stories from Pa Herman regarding the insertion of a rock inside a sarong for more impact). Lonely Dog then thought that it needed more oomph and less bounce so they cut it and put dirt inside.
Dog Jeremy Charles was doing quite well against Tennessee Dog's nunchaku until the very last exchange when Jeremy tried a fancy tie up with Tennessee's foot (caught while kicking). Inexperience with the flexible weapon caused Jeremy to momentarily pause which resulted in Tennessee Dog landing a solid nunchaku strike to the side of the fencing mask-encased head. The resulting disorientation caused the fight to be declared over as time was ending anyway.
Good fight.