The order is important, rather than just the combination, of 3 runners out of 8, so the probability of selecting the winner is 1/8; the probability of selecting the runner-up next is 1/7, so the combined probability of correctly selecting both places is 1/56; the probability of selecting 3rd place is 1/6, making the probability of correctly selecting all 3=1/336 (1/56*1/6).