Ubaldo Jimenez was once a terrific young starting pitcher for the Colorado Rockies. He had tremendous raw talent and pitching acumen to boot. If harnessed, he figured to miss bats, keep the ball on the ground and limit walks while remaining on the effectively wild side. He could dial it up to 96 mph — average fastball velocity of 95.8 mph in 2007 — and threw a top-notch, looping curveball that was tough to pick up with his herky-jerky windup. He was, potentially, the prototypical pitcher capable of succeeding at Coors Field.
After posting WAR totals of 4.3, 5.9 and 6.4 from 2008-10, he took a step back last season. His strikeout, walk and groundball numbers were very similar to the prior three years, but he served up more home runs and was less effective at stranding runners. Last season was a case of strong ERA estimators that belied better performance than his actual earned run average. As such, he seemed like a prime regression candidate this season. Through 28 starts and 161.1 innings this year, however, Jimenez has just 0.4 WAR. After averaging 5.5 WAR from 2008-10, Jimenez isn’t currently on pace to finish with even one win above replacement over a full season.
While last season’s relative struggles — he had been so effective that 3.5 WAR represented a down year — at least gave hope to improved performance, everything has gone wrong this season. Jimenez has regressed, but not in the direction his 2011 peripherals portended. Instead, he is set to finish this season with the worst numbers of his career across the board. He quickly went from one of the best to one of the worst, and it doesn’t seem that the major causes are easily fixable.
Read the rest of this entry »