"This is Fujiyama Crest, " Dettori says, holding a feed bucket to the nose of an aging gelding.

CNN: Dettori's magnificent day

Cosmo Fujiyama, 23, lives in Honduras full time to coordinate the group's building efforts on the ground.

CNN: Fighting poverty one campus at a time

Fujiyama's group helped villagers purchase a new plot of land to rebuild.

CNN: Fighting poverty one campus at a time

The seventh winner, Fujiyama Crest, provides a daily reminder to Dettori of the occasion that turned him from a rising racing star to a riding phenomenon.

BBC: Frankie Dettori recalls his Ascot 'Magnificent Seven'

Fujiyama says students are deeply committed to the organization because they are involved on every level: They raise money and then travel to Honduras to help build houses.

CNN: Fighting poverty one campus at a time

While Fujiyama spends his summers in Honduras working alongside volunteers, he spends a large portion of the year on the road visiting colleges to organize chapters and raise funds.

CNN: Fighting poverty one campus at a time

For Fujiyama, who deferred medical school to dedicate himself to his mission in Honduras, the lifestyle is a far cry from private practice, but he says he loves what he is doing.

CNN: Fighting poverty one campus at a time