Fight to Win Pro 43 featured a big main event with two of the best competitors in heavyweight grappling. Joao Assis defended his title against Tom DeBlass in a very competitive bout. In a fight where both men exchanged attacks, it would be Assis who found a way to come out victorious via a split decision victory.
DeBlass would employ his patented half guard to keep Assis at bay, who relented to attacking with tight heel hooks right from the start of the action. DeBlass was also active from this position as he attempted multiple kimura attacks, but was unable to finish the hold.