Forced to miss the Triple Crown series after exiting his sensational GII Fasig-Tipton Risen Star S. victory with an ankle chip, Magnitude (Not This Time) makes his highly anticipated return in Saturday evening's $250,000 Iowa Derby at Prairie Meadows. He is the 9-5 morning-line favorite. The Winchell Thoroughbreds colorbearer was a 9 3/4-length, front-running winner of the Risen Star at odds of 43-1 Feb. 15, good for a 108 Beyer Speed Figure. His final time of 1:48.85 was the fastest Risen Star in seven runnings (including one year with split...