Who said they had to have a win bet to make a killing? They could have scooped the pool in the exotics. Sure the pool was small, but it was still more money than the winners share in a 5K claimer. Do you seriously believe that the trainer, groom and or anyone else associated with the barn couldn't tell the difference between a filly and a gelding? Especially since the gelding in question just happened to run two days prior. The world must look wonderful in those rose tinted glasses you wear:)