So everybody is competing together, you give trophies to the 4th, 5th, and 6th guys labeled 1st, 2nd, and 3rd, and then you take the top three guys, already ranked by a two-round contest and rerank them by a one-round contest. Indeed the top three guys don't care much about another plastic trophy, but they do care which of them flies best. Wouldn't it be better to keep the results of the two-round contest, give postcards or something labeled 1, 2, and 3 to the guys who placed 1st, 2nd, and 3rd, then give nice trophies labeled 4, 5, and 6 to the guys who placed 4th, 5th, and 6th?