Top 50 Pitching Prospects of 2006 In Review
Top 50 Pitching Prospects from 2006 in Review
Yesterday we looked at the Top 50 Hitting Prospects from 2006, to see how they looked five years later. Today we'll take a look at the Top 50 pitchers. You can find the review of the 2005 list that I did in January 2010 here.
1) Justin Verlander, RHP, Detroit Tigers: 83-52, 3.81 ERA, 118 ERA+, 18.7 career WAR. Excellent.
2) Francisco Liriano, LHP, Minnesota Twins: 38-32, 3.97 ERA, 109 ERA+, 8.4 career WAR. Not the pitcher he was before Tommy John, but still above average.
3) Matt Cain, RHP, San Francisco Giants: 57-62, 3.45 ERA, 126 ERA+, 20.9 career WAR. Excellent.
4) Chad Billingsley, RHP, Los Angeles Dodgers: 59-41, 3.55 ERA, 116 ERA+, 12.8 career WAR. Very very good.
5) Craig Hansen, RHP, Boston Red Sox: 2005 draft pick ranked very high coming into '06 as future closer. 6.34 ERA, 73 ERA+ in just 94 innings, -2.2 career WAR. Huge bust. Was rushed, had serious command problems.
6) Jason Hirsh, RHP, Houston Astros: 8-11, 5.32 ERA, 89 ERA+ in 166 innings, career WAR -0.8. Still hanging around Triple-A.
7) Cesar Carrillo, RHP, San Diego Padres: 13.06 ERA in 10.1 major league innings. Injuries left him a Triple-A pitcher.
8) Jon Lester, LHP, Boston Red Sox: 61-25, 3.55 ERA, 130 ERA+, 18.1 career WAR. Excellent.
9) Jon Papelbon, RHP, Boston Red Sox: 2.22 ERA, 209 ERA+, 188 saves, 15.1 career WAR. Excellent.
10) Fernando Cabrera, RHP, Cleveland Indians: 5.24 ERA, 86 ERA+ in 175 innings, career WAR -0.3. It was really stupid to rank him this high and I don't remember what my thinking was.
11) Scott Baker, RHP, Minnesota Twins: 55-42, 4.32 ERA, 100 ERA+, career WAR 11.4. A solid starting pitcher.
12) Joel Zumaya, RHP, Detroit Tigers: 3.05 ERA, 148 ERA+ in 210 innings, career WAR 4.4. A very effective pitcher
when he isn't injured.
13) Jon Broxton, RHP, Los Angeles Dodgers: 3.11 ERA, ERA+ 136, 77 saves, 6.1 career WAR. Can't complain.
14) Luke Hochevar, RHP, Unsigned: 19-32, 5.60 ERA, 78 ERA+, career WAR -0.5. Awful.
15) Mike Pelfrey, RHP, New York Mets: 43-41, 4.31 ERA, 95 ERA+, career WAR 4.4. Strong '08 and '10 seasons. I keep expecting him to take a big leap forward at some point.
16) Scott Elbert, LHP, Los Angeles Dodgers: 6.84 ERA in 26 major league innings. Has been effective in the minors most of the time, with bouts of command problems and injuries. Still a prospect.
17) Jeremy Sowers, LHP, Cleveland Indians: 5.18 ERA, 84 ERA+ in 400 innings, career WAR 1.7. Pitched well in the majors in 2006 but unable to replicate success.
18) Scott Olsen, LHP, Florida Marlins: 37-49, 4.85 ERA, 88 ERA+ in 723 innings, career WAR -0.2. Pitched well in '06 and '08, but badly otherwise.
19) Troy Patton, LHP, Houston Astros: 13 major league innings. An average Triple-A pitcher at this point, lost much of his velocity due to injuries.
20) Anthony Reyes, RHP, St. Louis Cardinals: 13-26, 5.12, ERA+ 86, career WAR 0.4. Looked good at times but never put it together.
21) Jered Weaver, RHP, Los Angeles Angels: 64-39, 3.55 ERA, ERA+ 12, career WAR 20.0. Excellent.
22) Yusmeiro Petit, RHP, Florida Marlins: 5.57 ERA, 82 ERA+ in 229 innings, career WAR -0.2. Turned out to be a Quadruple-A type.
23) Anibal Sanchez, RHP, Florida Marlins: 31-29, 3.74 ERA, 114 ERA+, 7.6 career WAR. A solid pitcher when healthy.
24) Jose Capellan, RHP, Milwaukee Brewers: 4.89 ERA, 93 ERA+ in 123 innings, -0.2 career WAR. Blah.
25) Merkin Valdez, RHP, San Francisco Giants: 5.53 ERA, 80 ERA+ in 68 innings, -0.7 WAR. Injury casualty.
26) Phil Hughes, RHP, New York Yankees: 31-18, 4.20 ERA, 105 ERA+, 4.9 career WAR. Just getting started.
27) Eric Hurley, RHP, Texas Rangers: Made five starts in 2008. Injury casualty.
28) Homer Bailey, RHP, Cincinnati Reds: 16-16, 5.09 ERA, 83 ERA+, -0.5 career WAR. Has the stuff, but consistently inconsistent.
29) Edinson Volquez, RHP, Texas Rangers: 28-22, 4.36 ERA, 101 ERA+, 4.2 career WAR. Excellent in 2008 but hampered by injuries since.
30) Jimmy Barthmaier, RHP, Houston Astros: Got killed in three starts for the Pirates in 2008.Injury issues, and unable to replicate A-ball success at higher levels.
31) Matt Garza, RHP, Minnesota Twins: 42-44, 3.97 ERA, 107 ERA+, 9.8 career WAR. Very good pitcher.
32) Anthony Swarzak, RHP, Minnesota Twins: 6.25 ERA, 70 ERA+ in 12 starts in 2009. Got hit hard in Triple-A last year. Not a lot of hope in my view.
33) Jairo Garcia, RHP, Oakland Athletics: Now known as Santiago Casilla. 4.30 ERA, 99 ERA+ in 216 innings, six saves, but was effective in 2010 with a 1.95 ERA for the Giants, 1.3 career WAR.
34) Gio Gonzalez, LHP, Philadelphia Phillies: 22-20, 4.43 ERA, 96 ERA+. Took a huge step forward in '10, 15-9, 3.23, 128 ERA+, 4.3 WAR.
35) Ray Liotta, LHP, Chicago White Sox: Injury casualty.
36) Mark Pawelek, LHP, Chicago Cubs: Injury casualty, velocity vanished.
37) Bobby Jenks, RHP, Chicago White Sox: 3.40 ERA, 136 ERA+, 173 saves, 9.6 career WAR. No complaints.
38) John Danks, LHP, Texas Rangers: 46-44, 3.96 ERA, 115 ERA+, 17.2 career WAR. Excellent.
39) Thomas Diamond, RHP, Texas Rangers: 6.83 ERA, 64 ERA+ in 29 innings for the Cubs last year. Looked like an injury casualty but fought his way back.
40) David Purcey, LHP, Toronto Blue Jays: 5.33 ERA, 81 ERA+. Much more effective in pen last year, probably his best role for the future.
41) Chris Ray, RHP, Baltimore Orioles: 4.02 ERA, 111 ERA+ in 248 innings, 51 saves, 49 of them in '06 and '07. 3.6 career WAR.
42) Cole Hamels, LHP, Philadelphia Phillies: 60-45, 3.53 ERA, 123 ERA+, 17.0 career WAR. Excellent. Deserved to rank higher.
43) Ricky Romero, LHP, Toronto Blue Jays: 27-18, 3.99 ERA, 107 ERA+, 5.8 career WAR. Looked like a possible bust until 2009 but has been very good since.
44) Chuck James, LHP, Atlanta Braves: 24-19, 4.48 ERA, 98 ERA+. Effective in 2006 and 2007 but didn't last long. 2.6 career WAR. Pitched well in Triple-A last year and could reemerge.
45) Travis Bowyer, RHP, Florida Marlins: Strong relief season in Triple-A in 2005, got hurt and never pitched again.
46) Dustin McGowan, RHP, Toronto Blue Jays: 20-22, 4.71 ERA, 94 ERA+ in 354 innings through 2008. 1.7 career WAR. Injury casualty.
47) Matt Torra, RHP, Arizona Diamondbacks: 2005 first rounder. Suffered labrum injury and was never the same, lost 7 MPH off fastball. Now a Triple-A inning-eater.
48) Donald Veal, LHP, Chicago Cubs: Stalled out in upper minors with mechanical problems, control issues.
49) Wade Davis, RHP, Tampa Bay Rays: 4.01 ERA, 100 ERA+ in 204 innings, 2.1 career WAR. Just getting started.
50) Dustin Nippert, RHP, Arizona Diamondbacks: 5.31 ERA, 86 ERA+ in 268 innings, 0.1 career WAR. Looked like a bust but has pitched well for the Rangers the last two years.
With just a couple of exceptions I am very happy with this list. Most of the busts were injury-related. I've noticed the last few years that the pitching lists have turned out better than the hitting lists, although generally pitchers are supposed to be less predictable. I'm not sure why that is, although in general I have a better feel for analyzing pitchers both sabermetrically and scoutingly than I do for hitters.
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Some thoughts...
People you should have given yourself an excellent mark on who you didnt….
Liriano, Broxton, Baker, Jenks, Garza, Hughes, Romero…
These guys are all studs, given the attrition rate, you killed it with those guys.
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by JD Sussman on Jan 27, 2026 10:11 AM EST reply actions
List
Better than decent. lol
Think of how stupid the average person is, and realize half of them are stupider than that. George Carlin
by GregJP on Jan 27, 2026 10:15 AM EST reply actions 1 recs
Liriano
had a FIP of 2.66 last year. That’s unreal… he’s every bit as good as he was before the injury.
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by Conjunction on Jan 27, 2026 10:19 AM EST reply actions
yeah his FB command is coming back very nicely too
I think he may have better control now than he did before at least with some pitches…
However there is no doubt that is slider was once ‘unhittable’ where as know its a very good pitch but can be squared up from time to time.
While I think he is 90% or greater of the pitcher he was in 2006 as he is right now, he isn’t as dangerous
I called it - Joe Mauer's first career Home-Run at Target Field !!!
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by SteveHoffmanSlowey on Jan 27, 2026 11:17 AM EST up reply actions
Except
His FIP in ’06 before the injury was 2.55, and his xFIP of 2.35 in ’06 was stronger than his (still very good) 3.06 xFIP from last year.
He’s not the same pitcher. He doesn’t throw as hard, and he’s not quite as dominant. His K/9 was higher, his BB/9 was lower, and he used to get more ground balls.
He is still really damn good, though.
by drwmsu1 on Jan 27, 2026 12:25 PM EST up reply actions
He was essentially the best pitcher (durability aside) in baseball before the injury.
That season… IF the Twins had had him with Santana in the playoffs… Well… They might’ve lost to the yanks in 5 games! (I kid, I kid..)
by Patrick42 on Jan 28, 2026 2:19 PM EST up reply actions
Nah
Tigers knocked the Yanks out in four that year. Maybe Twins would have bested A’s (probably?), and played Detroit in an all AL Central ALCS?
by drwmsu1 on Jan 29, 2026 10:31 AM EST up reply actions
Mark Pawelek
Shaking my head, I thought that guy was going to be an ace.
by BryceHarper on Jan 27, 2026 10:32 AM EST reply actions
I remember when he showed up to camp hitting 98 with a kofaux curve
Tools Whore
by Tyler on Jan 27, 2026 10:41 AM EST up reply actions
He truly looked awesome
It just goes to show you how much of a crap shoot pitching is.
Dewey and KBR are just.......too........sweeeeeeeeeeeeeet!!!!!!
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by King Billy Royal on Jan 27, 2026 11:38 AM EST up reply actions
He and Zumaya
They should start a support group for victims of video game console injuries.
by aCone419 on Jan 27, 2026 11:47 AM EST up reply actions
Thanks John
I really enjoyed these last year, and nice to see them again.
If you’re so inclined, I’d also be interested in which handful of guys were in the back 50 (or back 100) that turned out to be solid major leaguers. Seems like it would help provide the reciprocal component to the “what did we fail to consider?” question. My hunch is that it will be guys always project as #3 starters and crept up the minors slowly (Dallas Braden?), learned new pitches (Lance Lynn?), or recovered from injuries (Jaime Garcia, I hope?).
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by siddfynch on Jan 27, 2026 10:49 AM EST reply actions
I wrote this column for SI.com in 2007
Evaluating young hitters is tougher than pitchers
by JonWeisman on Jan 27, 2026 11:22 AM EST reply actions
Awesome job John
This is a fantastic list. Were you evaluating pitchers differently than hitters in 2006? Intuitively I would have thought that you would have a lot more success with the hitting list than the pitching list?
Dewey and KBR are just.......too........sweeeeeeeeeeeeeet!!!!!!
The Wolfpac is looking for new soldiers! Change your logo to the black and red!!!
by King Billy Royal on Jan 27, 2026 11:39 AM EST reply actions
FYI about Dustin Nippert
he signed with Doosan Bears, a Korean baseball league team. The reaction was generally that everyone was surprised that such a pitcher who had decent last two years in big leagues would go overseas to find for a pitching job rather than find another opportunity in other ML team. Wish him the best of luck
btw Jose Capellan, also in this list, went to Korean league last year and got hammered pretty bad.
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by lard of the dance on Jan 27, 2026 12:29 PM EST reply actions
McGowens giving it another go this year, so I wouldnt say hes a casualty just yet (although this is probably his last shot).
by philiafan14364 on Jan 27, 2026 4:18 PM EST reply actions
I hope it’s as a reliever. I hink he’d be awesome with his stuff.
by hrv2010 on Jan 27, 2026 11:40 PM EST up reply actions
He is done
I am a Toronto fan so it pains me to say this but both his elbow and shoulder have issues. McGowan is pretty much a million to one shot at this point.
Dewey and KBR are just.......too........sweeeeeeeeeeeeeet!!!!!!
The Wolfpac is looking for new soldiers! Change your logo to the black and red!!!
by King Billy Royal on Jan 28, 2026 12:49 AM EST up reply actions
Edinson Volquez
I’m curious as to what people expect from him going forward. The TJ surgery is far enough in the rear view that he might approach the heights of 2008 again soon. And he’s young enough that maybe he could still get that walk rate down. It’s not that hard to squint and see an elite pitcher. He’s certainly got the stuff for it.
by FI2 on Jan 27, 2026 4:35 PM EST reply actions
Volquez
I think Volquez is what he is. He will put up great k totals but his control will keep him for greatness. I expect him to be the cock tease of pitchers.
Dewey and KBR are just.......too........sweeeeeeeeeeeeeet!!!!!!
The Wolfpac is looking for new soldiers! Change your logo to the black and red!!!
by King Billy Royal on Jan 27, 2026 5:10 PM EST up reply actions
Purcey
It’s funny that Purcey was ranked higher than Romero and McGowan.
by conn_smythe on Jan 27, 2026 5:33 PM EST reply actions
Lot of RedSox on this list
Nice job on those. Other than Hansen… sigh.
Cabrera… no offense but lol
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by Marisa Ingemi on Jan 27, 2026 5:51 PM EST reply actions
pap
I took a lot of crap for rating Papelbon that highly.
by John Sickels on Jan 27, 2026 6:12 PM EST up reply actions
I'd say it's a success
though I have been hard on him the last year or so.
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by Marisa Ingemi on Jan 27, 2026 7:20 PM EST up reply actions
Better than the hitters list
I ripped on the hitters list. To be fair the pitchers list seems much better than the hitters list.
I thought common wisdom suggested pitchers were much harder to predict than hitters.
Maybe this needs to be re-examined.
by haven on Jan 27, 2026 8:29 PM EST reply actions
I'm surprised Nick Adenhart didn't make this list.
Rest in peace Nick.
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by Halowood on Jan 28, 2026 1:38 AM EST reply actions
He was coming off his first pro season
He also struggled with control in the AZL. Exactly the sort of guy that John tends to be cautious on. The breakout didn’t happen until the 2006 season.
by nixa37 on Jan 28, 2026 11:50 AM EST up reply actions
Justin Verlander = Legend in the making.
Probably the most underrated ace in baseball.
by SenorGato on Jan 28, 2026 1:13 PM EST up reply actions
Question John...How many players not on the list from this class rate 7+ WAR?
by Berndaddy on Jan 28, 2026 3:47 PM EST reply actions
dunno
Dunno…I’d have to go find a list of rookies who debuted in 2006. Anyone have a list?
by John Sickels on Jan 28, 2026 5:12 PM EST up reply actions
Wainwright and Jimenez jump to mind
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by TomCat009 on Jan 28, 2026 7:02 PM EST up reply actions
wainwright
Wainwright got a Grade B- after giving up 204 hits and 18 homers in 182 innings in Double-A in ’05. I projected him as a number three or four starter.
Jimenez got a “solid Grade B” despite having an ERA over 5.00 in the Texas League with poor control.
by John Sickels on Jan 28, 2026 9:56 PM EST up reply actions
I agreed then and would agree if you did it again
Matt Holliday is a great example of why your job is so hard, buried somewhere in your B/B- rankings is a top 10 hitter or pitcher.
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by TomCat009 on Jan 29, 2026 9:23 AM EST up reply actions
Sidebar what did you think of Franklin Morales
he and Jimenez are intricately linked for their 07 call up, and subsequent WS run.
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by TomCat009 on Jan 29, 2026 9:26 AM EST up reply actions
Joakim Soria
Johnny Cueto and Clay Buchholz are both close, not quite 7 WAR
by PrincetonCubs on Jan 28, 2026 9:05 PM EST up reply actions
cueto
Buchholz got a Grade B., based on 41 innings of work in the New York-Penn League.
Cueto was not in the 2006 book. He was in rookie ball in 2005 with a 5.02 ERA, 49 hits in 43 innings, and mediocre scouting reports. He made his first appearance in the 2007 book.
by John Sickels on Jan 28, 2026 9:59 PM EST up reply actions
7+ fWAR
Josh Johnson, James Shields, Jonathan Sanchez, Shawn Marcum, Joe Saunders, Fausto Carmona, Jason Hammel, Jair Jurrjens and Paul Maholm
Guys that should approach/surpass 7 WAR in 2011: Hong-Chih Kuo, Brian Wilson, Slowey, Gorzelanny, Nick Blackburn, Sean Marshall, and Scott Feldman
This isn’t definitive, this is just from skimming names
by jibs on Jan 29, 2026 9:29 AM EST up reply actions

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