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Kelvin Herrera

Kelvin De Jesus (Mercado) Herrera (twitter: @KelvinHerrera40)

Position: Pitcher
Bats: Right, Throws: Right
Height: 5' 10", Weight: 200 lb.

Born: December 31, 1989 in Tenares, Hermanas Mirabal, Dominican Republic
Signed by the Kansas City Royals as an amateur free agent in 2006. (All Transactions)
Debut: September 21, 2011 (Age 21)
Team: Royals 2011-2013
2013 Contract Status: Pre-Arb Eligible, 1 yr/$508k (13) (details) [*]
Service Time (01/2013): 1.008, Arb Eligible: 2015, Free Agent: 2018 [*], Agents: Wasserman Media Group [*]
    About biographical information

40
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Standard Pitching

Year Age Tm Lg W L W-L% ERA G GS GF CG SHO SV IP H R ER HR BB IBB SO HBP BK WP BF ERA+ WHIP H/9 HR/9 BB/9 SO/9 SO/BB Awards
2011 21 KCR AL 0 1 .000 13.50 2 0 0 0 0 0 2.0 2 3 3 1 0 0 0 1 0 0 9 36 1.000 9.0 4.5 0.0 0.0
2012 22 KCR AL 4 3 .571 2.35 76 0 10 0 0 3 84.1 79 24 22 4 21 6 77 2 1 3 344 175 1.186 8.4 0.4 2.2 8.2 3.67
2013 23 KCR AL 3 4 .429 4.01 25 0 11 0 0 2 24.2 20 11 11 8 11 2 28 0 0 3 104 102 1.257 7.3 2.9 4.0 10.2 2.55
3 Yrs 7 8 .467 2.92 103 0 21 0 0 5 111.0 101 38 36 13 32 8 105 3 1 6 457 141 1.198 8.2 1.1 2.6 8.5 3.28
162 Game Avg. 5 5 .467 2.92 68 0 14 0 0 3 73 67 25 24 9 21 5 69 2 1 4 302 141 1.198 8.2 1.1 2.6 8.5 3.28

Player Value--Pitchers

WAR Explained (v2.2): 8+ MVP, 5+ A-S, 2+ Starter, 0-2 Sub, < 0 Repl
Year Age Tm Lg IP G GS R RA9 RA9opp RA9def RA9role PPFp RA9avg RAA WAA gmLI WAAadj WAR RAR waaWL% 162WL% Salary Awards
2011 21 KCR AL 2.0 2 0 3 13.50 4.48 0.14 -0.34 98.0 3.92 -2 -0.2 1.4 -0.1 -0.2 -2 .398 .499
2012 22 KCR AL 84.1 76 0 24 2.56 4.51 0.06 -0.33 100.4 4.13 15 1.6 1.3 0.0 2.5 23 .521 .510 $480,650
2013 23 KCR AL 24.2 25 0 11 4.01 4.37 0.45 -0.32 100.9 3.63 -2 -0.2 1.3 -0.1 0.0 1 .493 .499 $508,175
3 Seasons 111.0 103 0 38 3.08 4.48 0.15 -0.33 100.5 4.02 11 1.2 1.3 -0.1 2.3 23 .512 .507 $988,825

Batting Against -- Pitching*

Year Age Tm Lg PAu G PA AB R H 2B 3B HR SB CS BB SO BA OBP SLG OPS BAbip TB GDP HBP SH SF IBB ROE
2011 21 KCR AL 2 9 7 3 2 1 0 1 0 0 0 0 .286 .375 .857 1.232 .167 6 0 1 1 0 0 0
2012 22 KCR AL 76 344 316 24 79 11 3 4 12 4 21 77 .250 .301 .342 .643 .319 108 8 2 5 0 6 3
2013 23 KCR AL 25 104 93 11 20 5 0 8 3 1 11 28 .215 .298 .527 .825 .211 49 0 0 0 0 2 1
3 Yrs 103 457 416 38 101 17 3 13 15 5 32 105 .243 .302 .392 .693 .295 163 8 3 6 0 8 4
162 Game Avg. 68 302 275 25 67 11 2 9 10 3 21 69 .243 .302 .392 .693 .295 108 5 2 4 0 5 3
MLB Averages .254 .319 .402 .721 .296

Win Probability*

Year Age Tm Lg PtchR PitchW Plays WPA WPA+ WPA- aLI WPA/LI Clutch RE24 REW boLI RE24/boLI LevHi LevMd LevLo
2011 21 KCR AL -1.8 -0.2 9 -0.4 0.1 -0.5 1.23 -0.1 -0.2 -2.0 -0.2 1.23 -1.1 1 1 0
2012 22 KCR AL 16.4 1.7 366 2.0 8.0 -6.1 1.28 1.4 0.2 19.4 2.0 1.28 15.3 27 23 26
2013 23 KCR AL 0.6 0.1 114 -0.2 2.3 -2.5 1.17 -0.4 0.1 0.7 0.1 1.17 -4.4 11 5 8
3 Yrs 15.2 1.6 489 1.4 10.4 -9.1 1.26 0.9 0.1 18.1 1.9 1.26 9.8 39 29 34

Reliever Pitching*

Year Age Tm Lg G GR GF Wgr Lgr SVOpp SV BSv SV% SVSit Hold IR IS IS% 1stIP aLI LevHi LevMd LevLo Ahd Tie Bhd Runr Empt >3o <3o IPmult 0DR Out/GR Pit/GR
2011 21 KCR AL 2 2 0 0 1 0 0 0 1 1 0 0 8 1.230 1 1 0 1 1 0 0 2 0 0 0 0 3.0 16
2012 22 KCR AL 76 76 10 4 3 4 3 1 75% 23 19 43 12 28% 7 1.282 27 23 26 31 11 34 29 47 25 16 30 20 3.3 17
2013 23 KCR AL 25 25 11 3 4 3 2 1 67% 10 7 5 2 40% 8 1.173 11 5 8 14 6 5 4 21 3 6 3 5 3.0 17
3 Yrs 103 103 21 7 8 7 5 2 71% 34 27 48 14 29% 1.256 39 29 34 46 18 39 33 70 28 22 33 25 3.2 17

Ratio Pitching*

Year Age Tm Lg PA Ptn% HR% SO% BB% XBH% X/H% GB/FB GO/AO IP% LD% HR/FB IF/FB DPopp DPs DP%
2011 21 KCR AL 9 78% 11.1% 0.0% 0.0% 22.2% 100% 0.40 1.00 67% 13% 20.0% 0% 1 0 0%
2012 22 KCR AL 344 60% 1.2% 22.4% 6.1% 5.2% 23% 1.25 1.76 68% 16% 4.2% 10% 63 8 13%
2013 23 KCR AL 104 48% 7.7% 26.9% 10.6% 12.5% 65% 0.86 1.50 55% 17% 28.6% 20% 3 0 0%
3 Yrs 457 58% 2.8% 23.0% 7.0% 7.2% 33% 1.12 1.67 65% 16% 10.2% 12% 67 8 12%
MLB Averages 45% 2.6% 19.3% 8.0% 7.6% 33% 0.83 1.11 68% 19% 7.8% 14% 11%

Pitch Summary -- Pitching*

Year Age Tm Lg PA Pit Pit/PA Str Str% L/Str S/Str F/Str I/Str AS/Str I/Bll AS/Pit Con 1st% 30% 30c 30s 02% 02c 02s 02h L/SO 3pK 4pW PAu Pitu Stru
2011 21 KCR AL 9 32 3.56 22 69% 27% 0% 36% 36% 73% 0% 50% 100% 56% 0% 0 0 0% 0 0 0 0 0 0 0 0
2012 22 KCR AL 348 1291 3.71 862 67% 24% 19% 29% 28% 76% 6% 51% 76% 59% 4% 15 8 30% 103 73 10 16% 15 1 -4 0 0
2013 23 KCR AL 104 435 4.18 276 63% 25% 23% 28% 24% 75% 5% 47% 69% 54% 6% 6 2 25% 26 18 2 14% 3 2 0 0 0
3 Yrs 461 1758 3.81 1160 66% 24% 19% 29% 27% 76% 5% 50% 75% 58% 5% 21 10 28% 129 91 12 15% 18 3 -4 0 0
MLB Averages 3.82 63% 28% 16% 27% 30% 72% 1% 46% 78% 60% 5% 24% 24%

Baserunning & Situational Stats*

Hits Home Runs Advances Baserunning
Year Age Tm Lg PA H Inf Bnt All GS GSo vRH vLH Hm Rd <2,3B Scr SO % ROE WP PB SBO SB CS SB% SB2 CS2 SB3 CS3 SBH CSH PO PCS BT PAu
2011 21 KCR AL 9 2 0 0 1 0 0 0 1 1 0 1 0 0 0% 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0
2012 22 KCR AL 344 79 11 1 4 0 11 2 2 3 1 24 12 2 50% 3 3 1 118 12 4 75% 8 3 4 1 0 0 0 0 6 0
2013 23 KCR AL 104 20 0 0 8 0 0 5 3 2 6 2 0 1 0% 1 3 0 30 3 1 75% 3 1 0 0 0 0 0 0 4 0
3 Yrs 457 101 11 1 13 0 11 7 6 6 7 27 12 3 44% 4 6 1 150 15 5 75% 11 4 4 1 0 0 0 0 10 0
MLB Averages 52% 73%

Cumulative Pitching

Year Age W L W-L% ERA G GS GF CG SHO SV IP H R ER HR BB IBB SO HBP BK WP BF ERA+ WHIP H/9 HR/9 BB/9 SO/9 SO/BB ERA+
2011 21 0 1 .000 13.50 2 0 0 0 0 0 2.0 2 3 3 1 0 0 0 1 0 0 9 36 1.000 9.0 4.5 0.0 0.0 36
2012 22 4 4 .500 2.61 78 0 10 0 0 3 86.1 81 27 25 5 21 6 77 3 1 3 353 158 1.181 8.4 0.5 2.2 8.0 3.67 158
2013 23 7 8 .467 2.92 103 0 21 0 0 5 111.0 101 38 36 13 32 8 105 3 1 6 457 141 1.198 8.2 1.1 2.6 8.5 3.28 141

Neutralized Pitching

Change to: Default / 750 Runs / 1968 Dodgers / 2000 Rockies or

All seasons are converted to 162-game seasons &
average team scoring of 716 total runs (4.42 R/G) How this works
Year Age W L W-L% ERA IP H R ER HR BB SO HBP WHIP H/9 BB/9 SO/9 SO/BB HR/9 Gact
2011 21 0 0 9.00 3.0 0 3 3 0 0 0 1 0.000 0.0 0.0 0.0 0.0 2
2012 22 5 3 .625 2.73 79.0 82 27 24 4 22 72 2 1.316 9.3 2.5 8.2 3.27 0.5 76
2013 23 1 1 .500 4.50 24.0 21 13 12 8 12 27 0 1.375 7.9 4.5 10.1 2.25 3.0 25
3 Yrs 6 4 .600 3.31 106.0 103 43 39 12 34 99 3 1.292 8.7 8.4 2.91 1.0 103



* - Disclaimer & Completeness Note

* Many Detailed Statistics are based on play-by-play accounts accumulated by RetroSheet. These totals may be incomplete (3.6% of all plays from 1945 to 1973 are missing or have incomplete accounts, click link for year and team summary of data completeness) for some players prior to 1974 and even complete seasons may not match the official totals due to errors in both the official totals and the play-by-play accounts. Pre-1954 seasons have a substantial numbers of games missing play-by-play accounts and should be viewed as essentially incomplete.

Appearances on Leader Boards, Awards, and Honors

Stats are Year-Value-Rank · Glossary

Games Played s c a p y
2012 AL  76 (2nd)

Base-Out Runs Saved (RE24)† s c a p y
2012 AL  19.35 (10th)

Youngest s c a p y
2011 AL  born 1989-12-31 (7th)

             

† Statistics like WPA, REW and RE24 are computed from play-by-play data which is only complete from 1974 to the present. From 1945-1973, the data is incomplete, though for most seasons only less than 20 games per season total are missing. Please see our page on data coverage for a full view of the data used to create these leaderboards.

Hall Of Fame Statistics

Player rank in (·)

Gray InkPitching - 1 (2642), Average HOFer ≈ 185
Hall of Fame MonitorPitching - 1 (1983), Likely HOFer ≈ 100
JAWS Relief Pitcher (935th), 2.3 career WAR/2.3 7yr-peak WAR/2.3 JAWS
Average HOF RP (out of 5) = 40.6 career WAR/28.2 7yr-peak WAR/34.4 JAWS

Other Resources & Links

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Viewed 11,429 times through June 18, 2013.
Name and misspellings: Kelvin De Jesus (Mercado) Kelvin Herrera

Player Page Tricks and Tips

Sum any set of rows by clicking anywhere (not red or blue) on the first and last rows of your selection. We will then compute the totals for the player between and including those two seasons.
Default Setting for this feature: Turn On / Turn Off
Summation of season totals only works for the initial case when the table is in year order. On a sorted table the results may get a bit goofy.

HIGHLIGHTING: Adding a range or series of player's career seasons or career game numbers (like '#1972:batting_standard', '#1970-1980-sum:batting_standard', or '#1998,1999,2001,2002,sum:pitching_standard') onto the end of a player page url causes the seasons to the highlighted and summed. After changing address bar, reload the page to see highlighting. This will work even in links e-mailed to others. Note that for tables with multiple pages the first table is the default. If you want to create a sum for a table other than the first one, select the rows and after the summation window appears click on "permanent link" link.

The play-by-play information both shown and used to create certain data sets was obtained free of charge from and is copyrighted by RetroSheet.