WPA Heroes – Week 1
So I decided to track the Win Probability Added (WPA) for each of the Twin’s players during the week. If you’re not familiar with this statistic, here’s a decent explanation. Basically, each situation (ie. bottom of the 8th, game tied, two outs, runner on second) is assigned a win probability. Batters and pitchers gain (positive or negative) WPA values depending on how they perform in situations. A player comes up big in a critical situation? Their WPA goes up a lot. A batter strikes out with bases loaded in a tie game? Their WPA goes down a lot. At least I’m pretty sure that’s how it works. I’m pretty new to the stat, so I could be way off base. Regardless, I still find it neat.
Baseball-Reference.com keeps track of each player’s WPA for every game (logged in each game’s boxscore). I’m going to try to go through the box scores every week and find the Twins player who contributed the most (the clutchiest player?), and the player who had the lowest WPA value (the choker?)
WPA Hero of Week 1:
CL | Jon Rauch: +0.592
The Twin’s new closer had a great first week of the season, saving four games in four tries and putting up a nice 2.25 ERA. Of course, he’s no Joe Nathan – hitters batted .313 against Rauch in week one – but he’s been getting the job done. I guess this shows that teams don’t necessarily need to break the bank for a “lights out” closer. Then again, I’m sure I’ll be crying for Nathan after a couple of consecutive Rauch melt-downs.
WPA Dead Weight of Week 1:
2B | Orlando Hudson: -0.510
The top of the Twins line-up has gotten off to a bit of a slow start here in 2010. Not that I’m worried, though – I don’t expect Span and Hudson to struggle like this for long. To take the “glass-half-full” approach, if the Twins were able to win both series against two play-off hopeful teams with the line-up not firing on all cylinders, imagine the carnage that will result when all eight or nine guys are hitting well at the same time.
Everyone Else:
Guess which Twins batter accumulated the highest WPA in week one? Did you guess Joe Mauer? If you did, you’re wrong. It was none other than Nick Punto’s side-kick: Brendan Harris! Sure, he only hit .111 on the week, but his two-run homer against the Angels on April 8th was worth only slightly less than Mauer’s ENTIRE WEEK (0.228 vs 0.248). Justin Morneau actually owned the second highest WPA for batters (0.295), and Matt Guerrier’s 0.505 WPA looks spiffy. If Rauch and Guerrier can keep up their week 1 success, they will be a pretty effective back-end of the bullpen.
Twins News one year ago today: Twins offense strong but falls to Jays
I thought this news story was appropriate, considering the Crain-wreck in Minnesota this afternoon.