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David Aardsma
Boston Red Sox [ Team Audit ] [ Depth Chart ]
Pitcher
Throws R
Age 26
6' 4"
205 lbs.

Player Profile

Other References
Baseball Prospectus DT Player Card
baseball-reference Player Card

Sections
Historical Stats | 2008 Forecast | Diagnostics | Seven-Year Forecast | Most Comparable Pitchers | Player Comments

Historical Stats

-- Equivalents --
Year Tm Lg W L SV G GS IP H BB SO HR GB% BABIP Stuff WHIP ERA PERA ERA H9 BB9 K9 HR9 VORP WXRL WARP
2005 WTN 2A 4 1 2 33 3 50.7 48 32 43 3 55% .324 -23 1.58 3.91 6.37 5.48 10.0 6.7 4.9 1.0 0.6 0.9
2005 NRW 2A 6 2 0 9 8 46.0 44 13 30 2 51% .300 -6 1.24 2.93 4.71 4.75 9.5 3.7 3.5 0.6 3.9 1.5
2006 IOW 3A 2 3 8 29 0 36.0 31 15 36 1 56% .326 2 1.28 3.25 3.87 4.46 8.1 4.2 6.8 0.5 4.3 1.5
2006 CHN MJ 3 0 0 45 0 53.0 41 28 49 9 38% .239 4 1.30 4.08 3.82 3.54 6.8 4.1 7.6 1.4 11.0 1.3 1.5
2007 CHR 3A 3 2 15 28 0 35.3 26 11 45 7 32% .241 2 1.05 4.33 5.38 5.56 7.7 3.2 8.5 2.6 0.2 1.1
2007 CHA MJ 2 1 0 25 0 32.3 39 17 36 4 39% .389 9 1.73 6.41 6.18 6.12 10.6 4.2 9.2 1.1 -2.1 0.0 0.3


EQA Distribution

Seven-Year WARP

2008 Forecast

(projection generated 3/17/08 5:57 AM)
-- Equivalents --
Percentile W L SV G GS IP H BB SO HR GB% BABIP Stuff WHIP ERA PERA ERA H9 BB9 K9 HR9 VORP WXRL WARP
90o 4 2 5 53 2 59.7 48 23 54 5 42% .263 13 1.18 2.73 2.80 2.71 6.8 3.1 7.4 0.7 20.6 2.0 2.8
75o 3 2 4 50 1 55.3 48 23 49 5 43% .275 10 1.27 3.38 3.29 3.34 7.3 3.4 7.4 0.8 14.9 1.4 2.1
60o 3 2 3 48 1 52.3 48 22 46 5 43% .284 7 1.34 3.88 3.68 3.82 7.7 3.5 7.3 0.9 11.0 1.0 1.7
50o 3 2 3 46 1 49.3 47 22 43 6 43% .293 5 1.41 4.39 4.07 4.31 8.1 3.7 7.2 1.0 7.3 0.7 1.2
40o 2 2 2 46 0 45.3 46 22 39 6 43% .305 1 1.50 5.10 4.61 4.98 8.7 3.9 7.1 1.1 3.0 0.2 0.7
25o 2 2 2 43 0 41.7 45 21 36 6 43% .314 -2 1.59 5.72 5.09 5.57 9.2 4.2 7.0 1.3 -0.3 -0.1 0.4
10o 1 2 1 35 0 34.3 42 19 29 6 43% .336 -10 1.78 7.16 6.20 6.93 10.4 4.7 6.9 1.5 -6.0 -0.5 -0.2
Weighted Mean 3 2 3 49 0 48.0 46 21 42 5 43% .291 5 1.39 4.32 4.00 4.24 8.0 3.7 7.2 1.0 7.5 0.6 1.3

Diagnostics

Breakout Rate Improve Rate Collapse Rate Attrition Rate Beta

46%

60%

19%

26%

0.99

Seven-Year Forecast

-- Equivalents --
Year W L SV G GS IP H BB SO HR GB% BABIP Stuff WHIP ERA PERA ERA H9 BB9 K9 HR9 VORP WXRL WARP
2008 (age 26) 3 2 3 49 0 48.0 46 21 42 5 43% .291 5 1.39 4.32 4.00 4.24 8.0 3.7 7.2 1.0 7.5 0.6 1.3
2009 (age 27) 3 2 3 49 0 48.0 47 22 43 5 43% .300 4 1.43 4.40 4.19 4.30 8.2 3.8 7.4 1.0 5.9 0.6 1.0
2010 (age 28) 3 2 3 47 0 46.0 44 19 40 5 40% .296 5 1.38 4.12 3.86 4.04 8.1 3.5 7.1 0.9 6.6 0.7 1.1
2011 (age 29) 2 2 3 41 0 40.3 39 17 36 4 43% .300 5 1.39 4.30 3.97 4.23 8.2 3.5 7.3 0.9 4.3 0.6 0.7
2012 (age 30) 3 2 3 48 0 46.0 44 20 43 5 42% .298 7 1.38 4.19 4.06 4.09 8.1 3.5 7.7 1.0 4.2 0.7 0.7
2013 (age 31) 2 2 2 35 0 35.0 35 14 30 4 43% .302 4 1.40 4.35 3.98 4.28 8.4 3.4 7.2 0.9 3.0 0.5 0.5
2014 (age 32) 2 1 2 31 0 30.7 31 11 27 4 42% .300 6 1.34 4.18 3.93 4.09 8.4 3.0 7.3 1.0 3.0 0.5 0.5

Platoon

Platoon AVG OBP SLG
vs LHB .245 .360 .396
vs RHB .242 .328 .380
Split +.003 +.033 +.016
LgAvg +.009 +.034 +.039

Valuation

Year WARP MORP Mean VORP Upside
2008 1.3 $2,475,000 7.6 5.5
2009 1.0 $2,100,000 6.0 5.0
2010 1.1 $2,400,000 6.7 5.8
2011 0.7 $1,725,000 4.3 3.6
2012 0.7 $1,750,000 4.2 3.0
2013 0.5 $1,425,000 3.0 2.4
2014 0.5 $1,475,000 3.0 1.7
Peak 5.3 $8,125,000 28.8 25.3


Stars & Scrubs Chart

Career Path Analysis


Seven-Year Performance
Year 75% 50% 25% Weighted Mean
2008 3.34 4.31 5.57 4.24
2009 3.69 4.43 5.92 4.30
2010 3.34 4.45 5.89 4.04
2011 3.56 4.82 6.03 4.23
2012 3.04 4.82 5.92 4.09
2013 3.48 4.49 5.94 4.28
2014 3.67 4.37 5.38 4.09


Seven-Year Attrition
Year Attrition Rate Drop Rate Breakout
2008 26% 0% 46%
2009 39% 24% 28%
2010 45% 25% 34%
2011 58% 39% 24%
2012 61% 53% 22%
2013 66% 58% 14%
2014 73% 66% 15%

Most Comparable Pitchers

Similarity Index

57

Rank Pitcher Year Score Trend Rank Pitcher Year Score Trend
1 Jeff Parrett 1988 67 11 Yhency Brazoban 2006 44
2 Roberto Novoa 2006 63 12 Trevor Hoffman 1994 43
3 Robb Nen 1996 55 13 Renie Martin 1982 42
4 Jim Ray 1971 54 14 Stan Belinda 1993 42
5 Bill Simas 1998 54 15 Bob James 1985 42
6 Kevin Correia 2007 53 16 Shawn Hillegas 1991 41
7 Jim Duckworth 1965 47 17 Jorge Julio 2005 40
8 Jose Capellan 2007 45 18 Bobby Thigpen 1990 40
9 Bill Greif 1976 45 19 Ron Willis 1970 39
10 Bob Hall 1950 44 20 Jesus Colome 2004 39

Player Comments

Click on the year to report a comment problem (misspelling, premature cutoff, weird characters or rendering, etc.)

2007

Aardsma made four separate trips between Chicago and Des Moines last year, repeatedly being called up and sent back as other pitchers went on and off the DL. He kept an even keel throughout, a task simplified by his limited-though-potent repertoire--virtually all fastballs, reaching up to 97 MPH. Facing a crowded bullpen, the Cubs traded him to the White Sox for Neal Cotts; he`ll have a better chance of sticking on the South Side.

2006

Part of the package received from the Giants in the fit of pique that rid the Cubs of LaTroy Hawkins, Aardsma might not fit in. His control issues seem chronic and the organization is already crowded with pitching talent. Dusty`s not known for his patience, but maybe Hendry`s hoping that the Alphabet King can harness his mid-90s heat and become the next Joe Nathan.

2005

Didn't have the instant success that fellow fast-track college closer Chad Cordero had in Montreal, but Aardsma logged a fine season at Triple-A, fanning nearly a batter per inning and keeping the ball in the park. He posted similar numbers in the Arizona Fall League, though he looked wild for stretches. He's expected to win a bullpen job in '05, and he's got the arsenal for a high-leverage or closer job.


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