The Fantasy Baseball Sherpa

This is the sixth and final post in a series taking a look back at the top fantasy baseball performers for 2009. In this post I’ll finish the series by reviewing the top 10 Pitchers using a 5×5 AL-only format. For the purposes of this analysis I’m including Cliff Lee’s Indians’ stats only (he ranked 32nd based on 152 IP).  The stats from the Twins-Tigers play-in game are not included.

1. Zack Greinke (Preseason rank was 16) - KC, SP

• Actual stats: 223.1 IP, 16 W, 0 SV, 2.06 ERA, 1.07 WHIP, 237 K, 3.55 Sherpa Pts (out of a max of 5.00)
• Projected stats: 206 IP, 13 W, 0 SV, 3.93 ERA, 1.34 WHIP, 179 K, 1.82 Sherpa Pts

2. Felix Hernandez (23) - SEA, SP

• Actual stats: 232 IP, 18 W, 0 SV, 2.48 ERA, 1.15 WHIP, 211 K, 3.19 Sherpa Pts
• Projected stats: 198 IP, 11 W, 0 SV, 3.95 ERA, 1.37 WHIP, 174 K, 1.57 Sherpa Pts

3. Roy Halladay (2) - TOR, SP

• Actual stats: 239 IP, 17 W, 0 SV, 2.79 ERA, 1.13 WHIP, 208 K, 3.09 Sherpa Pts
• Projected stats: 240 IP, 14 W, 0 SV, 3.34 ERA, 1.12 WHIP, 173 K, 3.31 Sherpa Pts

4. CC Sabathia (1) - NYY, SP

• Actual stats: 227.1 IP, 19 W, 0 SV, 3.21 ERA, 1.10 WHIP, 194 K, 3.17 Sherpa Pts
• Projected stats: 235 IP, 16 W, 0 SV, 3.14 ERA, 1.13 WHIP, 219 K, 3.92 Sherpa Pts

5. Justin Verlander (34) - DET, SP

• Actual stats: 232.1 IP, 18 W, 0 SV, 3.45 ERA, 1.18 WHIP, 264 K, 3.06 Sherpa Pts
• Projected stats: 198 IP, 12 W, 0 SV, 4.55 ERA, 1.33 WHIP, 160 K, 1.29 Sherpa Pts

6. Jon Lester (39) - BOS, SP

• Actual stats: 203.1 IP, 15 W, 0 SV, 3.41 ERA, 1.23 WHIP, 225 K, 2.48 Sherpa Pts
• Projected stats: 177 IP, 13 W, 0 SV, 4.27 ERA, 1.41 WHIP, 135 K, 1.47 Sherpa Pts

7. Josh Beckett (8) - BOS, SP

• Actual stats: 207.1 IP, 16 W, 0 SV, 3.78 ERA, 1.17 WHIP, 194 K, 2.46 Sherpa Pts
• Projected stats: 194 IP, 14 W, 0 SV, 4.22 ERA, 1.20 WHIP, 182 K, 2.46 Sherpa Pts

8. Andrew Bailey (186) - OAK, RP

• Actual stats: 81.1 IP, 6 W, 26 SV, 1.88 ERA, 0.90 WHIP, 89 K, 2.19 Sherpa Pts
• Projected stats: 45 IP, 2 W, 0 SV, 6.14 ERA, 1.28 WHIP, 49 K, 0.19 Sherpa Pts

9. Mariano Rivera (7) - NYY, RP

• Actual stats: 65.1 IP, 3 W, 44 SV, 1.79 ERA, 0.92 WHIP, 71 K, 2.14 Sherpa Pts
• Projected stats: 72 IP, 3 W, 35 SV, 2.38 ERA, 0.86 WHIP, 72 K, 2.51 Sherpa Pts

10. Edwin Jackson (232) - DET, SP

• Actual stats: 209 IP, 13 W, 0 SV, 3.36 ERA, 1.24 WHIP, 156 K, 2.11 Sherpa Pts
• Projected stats: 138 IP, 8 W, 0 SV, 5.67 ERA, 1.64 WHIP, 99 K, -0.14 Sherpa Pts

As you can see, there were a couple of big surprises on this list, namely Andrew Bailey and Edwin Jackson. It’s also interesting to note that Red Sox RP Jonathan Papelbon was only the 5th-ranked Closer, trailing Bailey, Rivera, Joe Nathan, and even David Aardsma.  Dividing the Sherpa Pts by the IP gives a decent indicator of the overall accuracy of the initial projection compared to the actual results.

You’ll also note that only four of the Pitchers listed above were in my preseason top 10 list. Who were the other six, and how did they fare? I’m glad you asked!

20. John Lackey (3) - LAA, SP

• Actual stats: 176.1 IP, 11 W, 0 SV, 3.83 ERA, 1.27 WHIP, 139 K, 1.60 Sherpa Pts
• Projected stats: 223 IP, 15 W, 0 SV, 3.71 ERA, 1.23 WHIP, 181 K, 2.85 Sherpa Pts

57. Kevin Slowey (4) - MIN, SP

• Actual stats: 90.2 IP, 10 W, 0 SV, 4.39 ERA, 1.41 WHIP, 75 K, 0.78 Sherpa Pts
• Projected stats: 180 IP, 11 W, 0 SV, 4.15 ERA, 1.03 WHIP, 151 K, 2.60 Sherpa Pts

18. Jonathan Papelbon (5) - BOS, RP

• Actual stats: 67 IP, 1 W, 38 SV, 1.88 ERA, 1.16 WHIP, 76 K, 1.69 Sherpa Pts
• Projected stats: 68 IP, 3 W, 38 SV, 2.38 ERA, 0.87 WHIP, 82 K, 2.56 Sherpa Pts

23. James Shields (6) - TB, SP

• Actual stats: 219.2 IP, 11 W, 0 SV, 4.14 ERA, 1.32 WHIP, 167 K, 1.52 Sherpa Pts
• Projected stats: 215 IP, 14 W, 0 SV, 4.14 ERA, 1.20 WHIP, 171 K, 2.54 Sherpa Pts

11. Joe Nathan (9) - MIN, RP

• Actual stats: 65 IP, 2 W, 45 SV, 2.22 ERA, 0.95 WHIP, 83 K, 2.07 Sherpa Pts
• Projected stats: 69 IP, 3 W, 35 SV, 2.48 ERA, 0.91 WHIP, 79 K, 2.42 Sherpa Pts

N/A Justin Duchscherer (10) - OAK, SP

• Actual stats: N/A - out entire season
• Projected stats: 163 IP, 11 W, 0 SV, 3.48 ERA, 1.19 WHIP, 123 K, 2.26 Sherpa Pts

We’re getting ready here in Sherpaville to develop our projections for the 2010 season.  We’ll post from time to time during the off-season as warranted by developments.

Enjoy the rest of the playoffs!

The Sherpa

Fantasy Baseball Sherpa

The Fantasy Baseball Sherpa’s Blog

@fantasy_sherpa on Twitter

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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

In my previous post I ranked the Top 10 Year-to-Date 5×5 Mixed League Hitters for the first quarter of the season. In this post I’ll do the same for Pitchers. The Sherpa Point system gives each Pitcher a score ranging from 0 to 1.00 in each of the 5 standard pitching categories (W, SV, K, ERA, WHIP). Essentially, the league leader in each category is given a score of 1.00, while all other Pitchers’ scores in that category are calculated as the ratio of their result to the league leader’s result.

For example, if Brandon Webb leads the league with 9 Wins, he gets a Sherpa Point score of 1.00 in the Wins category; a Pitcher with 6 Wins gets a score of 0.67; a Hitter with 3 Wins gets a score of 0.33, etc. A proxy statistic is used for average-based categories (e.g. - ERA, WHIP, K/BB, K/9).

The maximum Pitchers’ score is equal to the number of pitching categories. Statistics are taken from games through Tues 5/20/08.

Without further delay, here’s the list of the Top 10 Year-to-Date 5×5 Mixed League Pitchers:

1. Cliff Lee 3.34 (Preseason Projection was 0.26)
2. Brandon Webb 3.03 (3.23)
3. Cole Hamels 2.92 (2.50)
4. Edinson Volquez 2.77 (0.13)
5. Shaun Marcum 2.66 (0.93)
6. Tim Lincecum 2.59 (1.85)
7. Ervin Santana 2.50 (0.42)
8. Ryan Dempster 2.48 (0.59)
9. Carlos Zambrano 2.36 (2.34)
10. Daisuke Matsuzaka 2.34 (2.13)

Yes, it’s early, but even at this stage in the season it’s obvious that my Preseason Projections for Cliff Lee (50 IP, 3 Wins, 4.68 ERA, and 1.43 WHIP) were just a bit off. The Innings Pitched projection is obviously the driver - based on his performance the last 3 years, I didn’t believe he’d stick in the Indians’ rotation this year. Live and learn!

Webb and Hamels were in my Preseason Top 10, while Zambrano (13th), Matsuzaka (29th), and Lincecum (41st) all made my Preseason Top 50. However, the other 5 Pitchers on this list can all safely be termed “surprises”; I’ll venture a guess that if you have 2 or more of them on your roster (entirely possible), you’re probably sitting near the top of your league’s pitching standings.

Many notable names are missing from this list: Johan Santana (2.17 vs. Preseason Projection of 4.00); Jake Peavy (2.13 vs. 3.62); C.C. Sabathia (0.76 vs. 3.14); Roy Oswalt (0.61 vs 2.93); John Smoltz (1.41 vs. 2.70); Dan Haren (2.24 vs. 2.62); Aaron Harang (1.96 vs. 2.53); Erik Bedard (1.30 vs. 2.47). Just in case you’re curious, Jonathan Papelbon (1.89 vs 2.27), who ranks 24th Year-to-Date is the highest-ranked Closer; J.J. Putz (0.49 vs 2.32) was the highest-rated Closer (15th) in my Preseason Projections.

There is still plenty of time left for the Cliff Lees and the Ryan Dempsters to regress towards their expected values, and there’s plenty of time left for the C.C. Sabathias and Roy Oswalts to pitch the way most experts expected them to. I’ll be updating these rankings and comparisons for both Hitters and Pitchers periodically throughout the season.

Of course, lists like these are all well and good, but they don’t answer the obvious follow-up question: what should you expect these Hitters and Pitchers to do for the rest of the season?

I’ll begin to answer that question in a series of posts beginning early next week.

Until then,

The Sherpa