Chase Watch 2009: NASCAR, where 1 + 1 + 1 + 1 = 48

With only five races left in the season, we continue to assess who's up and who's down in the Chase for the Cup. And there are a whole lot more of the latter than the former.Current standings (movement): Jimmie Johnson, Mark Martin, Jeff Gordon (+2), Tony Stewart, Kurt Busch (+1), Juan Pablo Montoya (-3), Greg Biffle, Ryan Newman (+2), Kasey Kahne (+2), Carl Edwards (-2), Denny Hamlin (-2), Brian Vickers.Who's up: Who else? Johnson strengthened his hold on the top spot, stretching his lead over Martin from 12 points to 90. Gordon continues his charge up the leaderboard, but with Johnson at the top, Rainbow is but an afterthought. Further down the line, Ryan Newman and Kasey Kahne continue to solidify their top-flight status.Who's down: Thanks for playing, Juan Pablo. His streak of top-five finishes came to a crashing end Saturday night with his range of problems all over the 42 car. Edwards continued his slide into irrelevance in 2009, and Hamlin's second week of...