Most horseplayers won&rsquo;t wager on the Grade 3, $500,000 Breeders&rsquo; Cup Marathon until Friday afternoon. But two significant &ldquo;bets&rdquo; have already been made by the owners of Alcomo and Prince Will I Am, who required supplemental fees to gain entry.\r\nAlcomo, a Brazilian-bred by Rainbow Corner, was supplemented by owner Abdul Rahman Al Jasmi for $75,000. Prince Will I Am, owned by Casa Farms, was supplemented for $45,000.\r\nBy percentage, Al Jasmi had to pay the largest supplemental fee of any horse owner with a starter in the 14 Breeders&rsquo; Cup races &ndash; 15 percent of the purse &ndash; because Alcomo is not by a Breeders&rsquo; Cup-nominated stallion, nor was he nominated as a younger horse. For Al Jasmi to turn a profit, Alcomo has to finish at least second, which would return $90,000, or first, which would return $270,000. Running third or worse would result in a loss.\r\nMeanwhile, Prince Will I Am, who is by a Breeders&rsquo; Cup-nominated stallion in Victory Gallop, would need to run at least third to offset his supplemental fee; that finish would return $49,500.\r\nEduardo Caramori, the trainer of Alcomo, said it would not make sense to run based strictly on the potential financial reward. Alcomo&rsquo;s participation is less of a business decision and more of a sporting one, he said. There are few races as long as the Marathon for Alcomo, a distance dirt specialist, and even if one were available, Caramori said, it would lack the glamour of the Breeders&rsquo; Cup.\r\n&ldquo;I&rsquo;m lucky the owner was gracious and brave enough to run,&rdquo; he said.