 The championships are the climax of a series of athletics meetings for under-19s in Jamaica, and this is similar to the grand prix series whose climax is normally a major championships in Senior athletics.Dominant athletes are normally picked for the Penn Relays, a competition where the best Jamaican schools and universities compete against American counterparts.Herb McKenley entered the first Jamaican high school team into the Penn Relays in 1964; since then, Jamaicans have won more than half the events.