Luis Mendoza, and Royals Minor League Starters K-rates too
This time around, I got some unexpected motivation for this post, coming from the discussion of the 40th spot on the Royals 40 man roster in this article:
There’s also a wild card in the mix.
Right-hander Luis Mendoza, 27, showed little over the previous four seasons in short big-league stretches for the Rangers and Royals. But he currently leads the Pacific Coast League with a 2.37 ERA while compiling a 7-4 record at Omaha.
The Royals are wary of letting Mendoza get away.
"We’ve got to find out," Moore said. "I don’t want another Philip Humber situation."
Well, let's take a look at Luis Mendoza and Phil Humber in AAA before we go into the overall review of Omaha.
| K/9 | K | IP | ERA | ER | |
| Luis Mendoza | 4.96 | 214 | 388.33 | 3.82 | 165 |
| Phil Humber | 6.89 | 393 | 513.67 | 4.64 | 265 |
Phil Humber's longterm success is not exactly a given. But at the same time, it's more likely than Luis Mendoza having major league success for more than 15 starts. For those of you unfamiliar, the strikeouts are a lot more important than the ERA. Let's just say the two Royals pitchers with lower K/9 rates than Mendoza's career AAA line are Hochevar and Francis.
The Royals are more likely to have to play an entire season in Arrowhead than Luis Mendoza is to be a successful major league starter. I don't know what to say for you if you live with concern that the Royals might lose Luis Mendoza. And if Luis Mendoza is one of your 5 best starters, then something is wrong.
Now, an overall look into Omaha's starters who aren't Jeff Suppan
| GS | K/9 | K | IP | ERA | ER | |
| Vin Mazzaro | 15 | 8.21 | 76 | 83.33 | 4.97 | 46 |
| Mike Montgomery | 21 | 7.37 | 92 | 112.33 | 5.37 | 67 |
| Sean O'Sullivan | 7 | 6.51 | 27 | 37.33 | 3.86 | 16 |
| Luis Mendoza | 12 | 4.50 | 39 | 78.00 | 1.96 | 17 |
One of these days, curiosity about what we got for David DeJesus might prove to be too much and Mazzaro might wind up in the rotation for a little bit. After all, "Royals starting pitcher" has not proven itself to be a position with 5 cornerstones in awhile and openings occur.
Montgomery has been improving a bit and is only just a bit of control away from being a legitimate contender to be in the rotation in 2012 (57 walks in 112 1/3 innings).
Sean O'Sullivan is someone who some fans probably forgot is still with the organization. His K numbers are slightly above his usual AAA strikeout numbers.
Going down to Springdale
| GS | K/9 | K | IP | ERA | ER | |
| Jake Odorizzi-ov | 21 | 10.30 | 129 | 112.67 | 3.36 | 42 |
| Edgar Osuna | 11 | 8.94 | 48 | 48.33 | 8.75 | 47 |
| Chris Dwyer | 21 | 7.70 | 91 | 106.33 | 6.01 | 71 |
| Jake Odorizzi-AA | 6 | 6.82 | 26 | 34.33 | 4.46 | 17 |
| Will Smith | 21 | 5.37 | 71 | 119.00 | 4.54 | 60 |
Odorizzi's AA performance is way too early to make a call about. Osuna continues to have a year where his K/9 and ER/9 rates are nearly the same. Chris Dwyer's doing pretty well with the strikeouts and not so much with earned runs or control (control being way more important). Dwyer's ERA at home is 8.41 and his ERA on the road is 4.18, so he may not miss pitching at Arvest. Will Smith pitched part of a no hitter, aside from that, he's just pitching and not doing much to write home about.
Now, the Pitcher's paradise
| GS | K/9 | K | IP | ERA | ER | |
| Justin Marks | 15 | 8.37 | 84 | 90.33 | 4.18 | 42 |
| Elisaul Pimentel | 17 | 6.82 | 75 | 99.00 | 3.73 | 41 |
| Tim Melville | 18 | 6.65 | 69 | 93.33 | 4.05 | 42 |
| Tyler Sample | 15 | 5.83 | 51 | 78.67 | 5.83 | 51 |
| Michael Mariot | 6 | 5.57 | 20 | 32.33 | 4.73 | 17 |
| Noel Arguelles | 19 | 5.42 | 58 | 96.33 | 2.90 | 31 |
Marks is looking pretty good there, with 56 Ks in his last 10 games (over 52 1/3 innings). Pimentel left the Wilmington rotation in mid-July for Mariot, but he looked pretty good compared to the team. Hopefully Pimentel can return to the rotation sometime soon (or become a good reliever in the meantime). Tim Melville had a 3 week stint in the bullpen and struck out 9 in 10 1/3 innings in his last 2 starts. Tyler Sample seems to be following a less radical version of the Osuna method. Michael Mariot has been far better in the bullpen than the rotation but it's too early to say that for sure. Noel Arguelles? his K rate in his first 9 starts was low, and the last 10 starts dragged it below 6. Considering the realities of Arguelles and his 40 man roster spot, he's probably far more likely to take the spot of "reliever who people want to start games" in a few years when he has to be on the 25 man roster.
And Kane County
| GS | K/9 | K | IP | ERA | ER | |
| Yordano Ventura | 13 | 9.42 | 60 | 57.33 | 5.02 | 32 |
| Greg Billo | 12 | 7.97 | 62 | 70.00 | 1.29 | 10 |
| Leonel Santiago | 18 | 7.62 | 92 | 108.67 | 3.06 | 37 |
| Sugar Ray Marimon | 13 | 7.36 | 54 | 66.00 | 3.68 | 27 |
| Jason Adam | 14 | 7.23 | 57 | 71.00 | 5.07 | 40 |
| Leondy Perez | 20 | 5.99 | 77 | 115.67 | 3.73 | 48 |
Ventura's overall numbers look pretty good, and as a 20 year old pitcher, he could rise up the charts within the next year. Billo went from being an awesome reliever to an awesome starting pitcher in Kane County. Santiago has the best K:BB ratio on the team with a 92:19 ratio. Marimon has been on the DL since June but he still has the best name in baseball. Jason Adam is doing pretty well so far. And if the pitcher with the worst K rate is putting up numbers like Leondy Perez's, then you're in good shape for that team.
As for Idaho Falls, Arizona, Burlington NC and the Dominican, those pitchers haven't started enough to really merit deep analysis, but here's some pitchers who are striking out people on those teams.
Idaho Falls: The best strikeout starters are Brian Peacock (2009 draft/31st round) and Kellen Moen (2011 draft/7th round). Based on history, Moen is probably a better bet to move up the ladder in the next year. Royals 9th round pick Aaron Brooks has 8.5 Ks per walk (34 strikeouts and 4 walks in 39 innings)
Burlington: Matthew Murray (11th round/2011) is the top strikeout starter with 42 in 39 2/3 innings. While Angel Baez and Eric Cantrell (2010/7th round) are mixing strikeouts with troubling walk rates.
AZL Royals: 14 pitchers have started in the 33 AZL Royals games, a rate only topped by several mid-2000s Royals teams. Only 3 starters have more than 2 starts for the AZL Royals. Of those, Eric Diaz (2009 draft/16th round) has 7.8 Ks per 9 (down from his first two stints in Arizona where he struck out over 10 and walked quite a few). Cesar Ogando (2011 draft/6th round) has struck out 12 and walked 14 in 12 1/3 innings. Stephen Lumpkin (2011 draft/11th round) has struck out 18 and walked 16 in 24 innings). Remember Sam Runion? he's pitching for the AZL Royals in his 5th season of minor league action.
DSL Royals: Aroni Nina and Sergio Rosario both have struck out over 10 batters per 9 in the hitter-unfriendly Dominican Summer League. Rosario's pitching (50 Ks and 10 BBs in 41 innings) got him promoted to the Arizona Royals this month. Nina has pitched for the DSL Royals since 2008 but this is his first stint as a starter.
Overall, the marquee prospects seem to be held back by walking way too many batters. And there's some guys who might be 2 years or so away from being considered a prospect or being put on our radars.
As for Luis Mendoza, if he goes, he goes, if he stays, then good for him. But Luis Mendoza isn't Phil Humber.
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Comments
Is anyone else as alarmed at the crappiness of Mazzaro?
I mean, big ballpark and defense aside, he was pretty serviceable in Oakland and very good in AAA for them. He at least projected as a decent 5th starter. Now he seems to completely suck. He strikes guys out but also yields tons of hits and his walks are up. Injury? Or Royals magic?
Relive Royals History at royalsretro.blogspot.com
Vin is Exhibit A in why I don't like FIP.
Gentlemen, you can't fight in here. This is the war room!
by KeepItCopacetic on Aug 2, 2011 3:28 PM EDT up reply actions
Actually, his FIP and ERA aren't that far out of line
ERA 5.18
FIP 5.12
xFIP 4.88
SIERA 4.93
Vins problem is the walks this season, 15 Walk to 9 K’s. I will take the high K, high BB guy any day over the low K, low BB guy. Pitchers don’t ever strikeout more batters, but can learn to walk less.
- .-. ..- … – / – …. . / .—. .-. - .. . … …
by Jeff Zimmerman on Aug 2, 2011 3:40 PM EDT up reply actions
I stand corrected, and this ratio was why I had been holding up hope for Jeffress
should he find his control. Very SSS so far, but he’s barely striking out 4 per 9 in NWA so far. We shall see.
Gentlemen, you can't fight in here. This is the war room!
by KeepItCopacetic on Aug 2, 2011 3:44 PM EDT up reply actions
yeah, it's the minor leagues
league averages (ERA and K/9)
AL: 3.93/6.8
PCL: 5.18/7.1
TxL: 4.59/7.3
CL: 3.73/7.6
MWL: 3.82/8.0
so Mazzaro’s ERA is lower than the PCL average. But his Oakland stats were Coliseum-aided.
Royals minor leaguers beating their league averages in K/9: Mazzaro/Montgomery/Osuna/Dwyer/Marks/Ventura.
Osuna’s K-rate is weird since he was a low-K guy last year (6.1 Ks per 9)
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Chairman, The Melky Cabrera Seasoning Sauce. It's great on your outfield!
by BHWick on Aug 2, 2011 3:40 PM EDT up reply actions 1 recs
+1
interesting
Kila's slash for Apr 20 to May 4, 2011, right before he was sent down: .276 / .344 / .448
by SagehenMacGyver47 on Aug 2, 2011 4:23 PM EDT up reply actions
Yes, if a pitcher busts, it's on the scouting staff
That’s what I learned from Scott’s study this offseason.
He's crappier than I expected
But it took me about 2 starts to chalk him up as sunk cost. He’s okay as a short-term injury replacement, I guess.

I used to be an A's fan until they left town and got good.
by philofthenorth on Aug 2, 2011 6:09 PM EDT up reply actions 1 recs
Lots of pitchers just bust
If you can figure out why 3 out of 4 top pitching prospects never make it in the majors, you can probably figure out why Mazzaro has fallen apart this year.
Alarmed but not surprised
You may know me as NYRoyal.
by Scott McKinney on Aug 2, 2011 4:46 PM EDT up reply actions
I ripped off a song about him
"LaPorta and Hafner gave Boom Boom a beating
Just three weeks later he was back on the mound
He gave up six runs in five innings at Kaufmann
And the blogs all demanded he should be sent back down" --Not Warren Zevon
Honestly, even if mazarro sucks
The ddj move was not a bad one. Have you seen his stats this year? They are GOD AWFUL! I don’t want to over-emphasize one incomplete season of stats, but they are that bad. Plus imagine if we had 3 guys blocking Cain. (I imagine dayton would have signed melky and frenchy regardless, his desire was/is too strong)
by YouDon'tPhaseMeGobble on Aug 2, 2011 3:36 PM EDT via mobile reply actions
Mazzaro's gonna have to actually pitch in KC to beat DeJesus' 80 OPS+ 2011, you know
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Chairman, The Melky Cabrera Seasoning Sauce. It's great on your outfield!
even then he can't pitch an 80 OPS+
nobody, not even the great paulino can accomplish that feat
by YouDon'tPhaseMeGobble on Aug 2, 2011 5:00 PM EDT up reply actions
Would
“net K/9” give more useful information? 9 Ks and 5 BBs doesn’t sound like a better plan than 7 Ks a 1 BB/9. We’ve seen the former with the Royals a few times this year.
Other variables to consider
Mendoza’s got a really good HR/9 in the minors: 0.64. He also doesn’t walk a ton of guys (BB/9 in minors is 2.82). As a result his K:BB rate is below 2:1, which is good.
Humber’s minor league HR/9 rate is almost twice Mendoza’s (1.19) but his control is a bit better (2.68).
I’d be interested in seeing GB/FB ratios for Mendoza.
Baseball Prospectus 90th Percentile Forecast
4.98 ERA, 1.38 WHIP, 1.1 VORP
So, a small chance at a backend starter. His top similarity score, however, is Tim Stauffer.
by BlueEyes_Austin on Aug 2, 2011 3:53 PM EDT up reply actions
GB% is near 50% in the minors
Seems to $hit himself in the majors and just starts walking people.
http://firstinning.com/players/Luis-Mendoza-a/
- .-. ..- … – / – …. . / .—. .-. - .. . … …
by Jeff Zimmerman on Aug 2, 2011 3:54 PM EDT up reply actions
Possibly
Or real major league hitters ignore his junk balls and he has to pitch up in the zone.
I’d love to be able to see minor league stats broken down by the quality of batter faced.
by BlueEyes_Austin on Aug 2, 2011 5:19 PM EDT up reply actions
Mendoza's minor league K:BB is lousy
He also doesn’t walk a ton of guys (BB/9 in minors is 2.82). As a result his K:BB rate is below 2:1, which is good.
No, a K:BB below is 2:1 is bad. His minor league career K:BB is 1.69, which is terrible.
Quick!
And if Luis Mendoza is one of your 5 best starters, then something is wrong.
Name 5 guys who could start a game right now for the Royals who are better than Mendoza.
I’ve got Duffy, Paulino, Francis, and Chen. Yes, there might be something wrong.
Nick Swisher is handsome.
Royals starters who are better than Mendoza now
Paulino, Duffy, Francis, Chen, Hochevar, Montgomery, Mazzaro, O’Sullivan, maybe Suppan
if Davies wasn’t on the DL, i’d put him on the list too. How Davies is viewed as significantly worse and more hopeless than Hochevar when Davies is 6 days older than Hochevar is puzzling. But Hochevar, for how bad he is, is still better than Mendoza.
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Chairman, The Melky Cabrera Seasoning Sauce. It's great on your outfield!
yeah, when SOS is a better option
that is pretty good sign that a pitcher like Mendoza should not pitch in the majors.
I don't mind giving Mendoza some starts this season
This is what rebuilding seasons are for. This is one of the reasons I wanted guys like Francis and Chen traded. While I’m not very optimistic about guys like Mendoz and Miner, I’d much rather see them get some starts in the majors this year to see if they could/should be in the mix for the #5-#8 SP spots. Every team ends up using more than 5 starters. I’d like to see if Mendoza is good enough to be one of those guys in line behind the first five next year. Same with Miner.
I would disagree with the argument that Mendoza (or Miner or someone like that) should only get a MLB start this season if they are likely to be one of the Royals 5 best starters. This season shouldn’t be about maximizing the Royals chances to win every game. I’d much rather prioritize developing and evaluating players for next year.
You may know me as NYRoyal.
LOL
Moore made the mistake because he wanted to keep his lover boy Davies and give his newly acquired “prize” Mazzaro a shot over a guy who pitched ok in a few appearances last year. Humber was THE 3RD OVERALL PICK in the draft and is 2.3 years younger than Bryan Bullington. These guys were quality talents and top draft picks – it’s worth giving them a shot to see if they can prove themselves, especially Humber for the reasons I outlined.
However, Luis Mendoza was never a top prospect and will not be a great major league starter. You made a mistake Dayton Moron by waving Humber. And you will continue to make many mistakes because you are simply not a good evaluator of MLB talent and therefore are not very good at your job (but decent at developing a quality farm system with a plethora of top picks – whoo hoo!)
In fairness
no one was clamoring for Phil Humber. And I certainly wouldn’t say Vinny took the spot so much as SOS did. They each profiled as fly ball guys who would just eat innings. There was a legitimate question about who was a better innings eater. Given the fact that Phil (though younger than first overall old man Bullington) was turning 28 and had little success (all in the pen) before this season, dropping him for youth was a non-issue for everyone. The peripherals had no one second guessing.
Of course, with the hindsight goggles on, I see what you are doing. The good news is that after the dropping of an undervalued pitcher, the Royals picked up undervalued Paulino. Enter Ryan LeFebvre quote about baseball balancing itself out.
If there is one lesson to take from this, it is not to re-examine Mendoza; you’ve got the wrong guy, Dayton. In his two seasons in Oakland, Vinny posted a 5.8 K/9. Not amazing, but he is a young pitcher. Considering Humber (age 28) is at 5.9 K/9 this season, they seem like decent comps in K capacity. Vin had a 6.8 K/9 in AA at age 21 and a 7.2 K/9 in a brief AAA stint. In Omaha, at age 24, it is an 8.2 K/9 (as shown above). He continues to walk people like it is going out of style, but like Jeff Zimmerman noted, you can learn to stop walking guys, you don’t get more talented.
So, let it be known—give no crap about Mendoza…give a crap about Mazzaro. It looks like he and Monty are control away from being quality starters.
There's a FA starting pitcher under 30 with a career 9.1 K/9
With over 11,000 IP.
Chiefs Might
by chicks_love_chiefs on Aug 3, 2011 4:18 AM EDT reply actions
Does he have a club option for 2012?
You may know me as NYRoyal.
by Scott McKinney on Aug 3, 2011 9:09 AM EDT up reply actions
You really interested in Ollie Perez?
Chiefs Might
by chicks_love_chiefs on Aug 3, 2011 10:44 AM EDT up reply actions
No, I was just curious as to who you were referencing
And I don’t think anyone is saying career K/9 tells you all you need to know to evaluate a pitcher.
You may know me as NYRoyal.
by Scott McKinney on Aug 3, 2011 1:26 PM EDT up reply actions

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