[Michael] Phelps and the Olympics pulled in an 18.3 rating on KSHB Channel 41, winning the head-to-head matchup with the Chiefs-Cardinals game, which had a 13.4 rating on KCTV Channel 5. . . "Guess I should have bet the farm," [KSHB general manager Craig Allison] said. "But that Chiefs number wasn’t bad. A lot of other NFL franchises would kill for a 13 rating in preseason."