The Fantasy Baseball Sherpa

This time of year many fantasy baseball team owners look to trades in an effort to improve their place in the standings.  Of course, everyone’s ideal is to trade away players who will perform worse over the remainder of the season than they have year-to-date, while simultaneously trading for players who will perform better over the remainder of the season than they have year-to-date.

How should you assess a player’s year-to-date value vs. his forecasted remainder-of season value?  Using Fantasy Baseball Sherpa’s In-season Updates tool, an owner can quantify both of these values in an effort to identify players who are currently undervalued and overvalued.  Fantasy Baseball Sherpa assigns a score of 1.00 Sherpa Points to the league leader in each category.  All other players are assigned a score for that category based on their result relative to the league leader’s result.

For example, if the league leader has hit 26 HRs year-to-date, then a player who has hit 13 HRs year-to-date would be assigned a scoreof 0.50 Sherpa Points.  For ratio categories (e.g.- AVG, ERA) a proxy statistic is used.  A player’s scores in each category can be added up to determine the player’s Total Sherpa Points.  A player’s maximum score is equal to the number of categories used (note:  this maximum score will be different for Hitters and Pitchers if your league uses a different number of categories for Hitters and Pitchers).

Here are 10 American League Pitchers who are good buy-low candidates for a league using the standard 5 Pitching categories (Wins, Saves, Strikeouts, ERA, & WHIP) based on stats through games of Sun 6/21/09:

1. John Lackey, SP, LAA (1.74 Remainder-of-Season Total Sherpa Points - 0.00 Year-to-Date Total Sherpa Points = +1.74)
2. CC Sabathia, SP, NYY (3.20 - 1.86 = +1.34)
3. Joakim Soria, RP, KC (2.08 - 0.83 =+1.25)
4. Ervin Santana, SP, LAA (0.70 - -0.42 = +1.12)
5. Scott Kazmir, SP, TB (0.45 - -0.45 = +0.90)
6. Rich Hill, SP, Bal (1.15 - 0.29 = +0.86)
7. Francisco Liriano, SP, Min (0.83 - 0.02 = +0.81)
8. Jonathan Papelbon, RP, Bos (2.31 - 1.51 = +0.80)
9. Mariano Rivera, RP, NYY (2.21 - 1.43 = +0.78)
10. Joba Chamberlain, SP, NYY (1.59 - 0.86 = +0.73)

Here are 10 American League Pitchers who are good sell-high candidates for a league using the standard 5 Pitching categories based on stats through games of Sun 6/21/09:

1. Edwin Jackson, SP, Det (1.21 - 2.50 = -1.29)
2. Kevin Millwood, SP, Tex (1.38 - 2.30 = -0.92)
3. Justin Verlander, SP, Det (2.00 - 2.58 = -0.58)
4. Scott Richmond, SP, Tor (0.80 - 1.36 = -0.56)
5. Jason Vargas, SP, Sea (0.32 - 0.88 = -0.56)
6. Drew Bailey, RP, Oak (1.35 - 1.90 = -0.55)
7. David Aardsma, RP, Sea (1.26 - 1.79 = -0.53)
8. J.P. Howell, RP, TB (0.79 - 1.30 = -0.51)
9. Scott Feldman, SP, Tex (0.61 - 1.12 = -0.51)
10. Josh Outman, SP, Oak (0.87 - 1.34 = -0.47)

Of course, there are a number of reasons why a player’s performance over the remainder of the season may vary significantly from his performance year-to-date, including normal variation in results, injuries, changes in roles, etc.  By attempting to quantify both a player’s year-to-date and remainder-of-season results, we can take at least some of the guesswork out of identifying buy-low and sell-high candidates.

I’ll take a look at NL Pitchers in my next post.

Until then,

The Sherpa

Fantasy Baseball Sherpa

The Fantasy Baseball Sherpa’s Blog

@fantasy_sherpa on Twitter

Every fantasy baseball owner dreams of “discovering” the next Johan Santana or Jake Peavy before the rest of their leaguemates. However, many owners forget that for every Cole Hamels who bursts onto the fantasy scene and makes an immediate and lasting impact, there are many more pitchers like Homer Bailey and Phil Hughes, who disappoint their owners when their initial successes are tempered, if not outweighed altogether, by their struggles.

This season has been no exception. Johnny Cueto looked like the second coming of Bob Gibson in his first two starts; lately, he has looked more like the second coming of Kei Igawa, serving up in-game batting practice for his opponents’ hitting pleasure. Cueto will most likely be sent back to the minors shortly to gain some much-needed experience. Nick Adenhart has already been banished back to the minors after just three awful starts.

Meanwhile, this year’s early-season pitching surprises include below-the-radar types such as Edinson Volquez, Greg Smith, Dana Eveland, John Danks, Garrett Olson, and Vicente Padilla. What, if anything, do they all have in common? All except for Smith had MLB experience prior to this year. All except for Olson have switched organizations at least once in their career. All of them have made at least 10 starts in AAA. All of them are 23-24 years old, except for Padilla, who is 30.

Which of the pitchers in this group have the best chance at sustaining their success over the course of the season? I looked at Year-to-Date stats for all MLB starting pitchers, searching for those who have started at least 3 games, have a K/9 rate of at least 6, and a K/BB ratio of at least 2. I also looked at Batting Average Against on Balls in Play (BAABIP) to see whether “luck” played a factor in a pitcher’s success (or lack thereof). These screening criteria suggest that Volquez and Danks have the best chance at remaining successful, with Olson also being a possibility.

These criteria also turned up some veteran pitchers who may still be available in your league. Bronson Arroyo is off to an atrocious start due to a combination of bad luck (a .357 BAABIP) and a severe case of gopheritis (1.8 HRs allowed per 9 innings pitched). However, his 3-year averages suggest that he is a much better pitcher than that - if you have space on your bench, I would definitely take a flier on Arroyo rather than burn my waiver priority or Free Agent Acquisition Budget (FAAB) dollars on Clayton Kershaw, who has not pitched even a single game at the AAA level yet. If you’re going to gamble on an unproven pitcher currently in the minors, you’re far better off betting on Homer Bailey (the sequel) than you are putting your fantasy chips on Kershaw.

Other veterans who should do more for your fantasy staff than the likes of Darrell Rasner, Aaron Laffey, et. al. - Chad Gaudin (when, not if, he rejoins Oakland’s rotation); Wandy Rodriguez, Jason Schmidt, Kevin Milwood, and Curt Schilling (when they return from the DL). I’d also take a chance on Hong-Chih Kuo if he joins the Dodgers’ rotation. Shawn Hill and Jose Contreras are two other options to consider if you currently have holes in your pitching staff. Don’t get me wrong - none of the pitchers on this list will be receiving Cy Young votes this season, but they all have the potential to be serviceable starters at the back of your fantasy team’s rotation.

However, keep in mind that experience is not always an advantage - if you want to add Livan Hernandez, Matt Chico, or Sidney Ponson to your fantasy pitching staff, you do so at your own peril - they are definitely the fantasy baseball equivalents of the Trojan horse, and you will get no sympathy from me if you choose to add any of them!

Until next time,

The Sherpa