The fish ran for deeper water, stripping the top shot and getting well into the braid, effortlessly pulling against 18 pounds of drag. Hamm maneuvered the boat outside of the fish, forcing it back toward shore. After a couple more hard runs and a lot of head shaking, the battle settled into a tug of war: I'd pump the shark up and it would turn and run off another 100 yards of line. I started to think the fish was playing me. When it finally came to the boat it was about seven feet long and the head, dorsal and back looked remarkably like a mako. Estimating weight was difficult for me because these sharks exhibit much more girth than the makos I know. Hamm said this one weighed about 300 to 350 pounds, definitely heavier than a mako of comparable length.