Photo of Kelvin Herrera


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 21.264, 17,725th in MLB history)   vs. DET 1.0 IP, 2 H, 0 SO, 0 BB, 3 ER, L
Rookie Status: Exceeded rookie limits during 2012 season [*]
Team: Royals 2011-2015
2015 Contract Status: Signed thru 2016, 2 yrs/$4.15M (15-16) (details) [*]
Service Time (01/2015): 2.157, Arb Eligible: 2017, Free Agent: 2019 [*], Agents: Wasserman Media Group [*]
    About biographical information


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+ FIP WHIP H9 HR9 BB9 SO9 SO/W 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 11.02 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 3 344 178 2.70 1.186 8.4 0.4 2.2 8.2 3.67
2013 23 KCR AL 5 7 .417 3.86 59 0 16 0 0 2 58.1 48 27 25 9 21 2 74 2 0 5 245 107 3.70 1.183 7.4 1.4 3.2 11.4 3.52
2014 24 KCR AL 4 3 .571 1.41 70 0 12 0 0 0 70.0 54 12 11 0 26 0 59 3 0 1 285 282 2.69 1.143 6.9 0.0 3.3 7.6 2.27
2015 ★ 25 KCR AL 2 2 .500 1.90 44 0 6 0 0 0 42.2 28 10 9 3 13 1 40 1 0 3 166 211 3.09 0.961 5.9 0.6 2.7 8.4 3.08 AS
5 Yrs 15 16 .484 2.45 251 0 44 0 0 5 257.1 211 76 70 17 81 9 250 9 1 12 1049 167 3.05 1.135 7.4 0.6 2.8 8.7 3.09
162 Game Avg. 4 4 .484 2.45 68 0 12 0 0 1 70 57 21 19 5 22 2 68 2 0 3 284 167 3.05 1.135 7.4 0.6 2.8 8.7 3.09
Hold your mouse over the values in the Saves, ERA, or FIP columns for additional information.

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 58.1 59 0 27 4.17 4.22 0.48 -0.31 102.8 3.52 -5 -0.5 1.4 -0.2 -0.2 1 .491 .497 $508,175
2014 24 KCR AL 70.0 70 0 12 1.54 4.29 0.22 -0.32 104.2 3.91 17 1.9 1.3 0.1 2.8 25 .528 .512 $522,500
2015 ★ 25 KCR AL 42.2 44 0 10 2.11 4.06 0.33 -0.30 102.3 3.51 6 0.7 1.2 -0.0 1.1 11 .516 .504 $1,600,000 AS
5 Seasons 257.1 251 0 76 2.66 4.31 0.25 -0.32 102.3 3.83 31 3.5 1.3 -0.2 6.0 58 .514 .506 $3,111,325

Postseason Pitching

Year Age Tm Lg Series Rslt Opp W L W-L% ERA G GS GF CG SHO SV IP H R ER HR BB IBB SO HBP BK WP BF WHIP H9 HR9 BB9 SO9 SO/W
2014 24 KCR AL ALWC W OAK 0 0 5.40 1 0 0 0 0 0 1.2 4 1 1 0 0 0 3 0 0 0 9 2.400 21.6 0.0 0.0 16.2
2014 24 KCR AL ALDS W LAA 0 0 0.00 2 0 0 0 0 0 1.0 0 0 0 0 1 0 1 0 0 0 4 1.000 0.0 0.0 9.0 9.0 1.00
2014 24 KCR AL ALCS W BAL 0 0 0.00 4 0 0 0 0 0 5.2 2 0 0 0 1 0 6 0 0 0 20 0.529 3.2 0.0 1.6 9.5 6.00
2014 24 KCR AL WS L SFG 1 0 1.000 2.70 4 0 0 0 0 0 6.2 5 2 2 0 5 0 6 0 0 0 28 1.500 6.8 0.0 6.8 8.1 1.20
1 Yr (4 Series) 1 0 1.000 1.80 11 0 0 0 0 0 15.0 11 3 3 0 7 0 16 0 0 0 61 1.200 6.6 0.0 4.2 9.6 2.29
1 ALWC 0 0 5.40 1 0 0 0 0 0 1.2 4 1 1 0 0 0 3 0 0 0 9 2.400 21.6 0.0 0.0 16.2
1 ALDS 0 0 0.00 2 0 0 0 0 0 1.0 0 0 0 0 1 0 1 0 0 0 4 1.000 0.0 0.0 9.0 9.0 1.00
1 ALCS 0 0 0.00 4 0 0 0 0 0 5.2 2 0 0 0 1 0 6 0 0 0 20 0.529 3.2 0.0 1.6 9.5 6.00
1 WS 1 0 1.000 2.70 4 0 0 0 0 0 6.2 5 2 2 0 5 0 6 0 0 0 28 1.500 6.8 0.0 6.8 8.1 1.20

All-Star Pitching

Year Tm Lg Age GS W L W-L% ERA GF CG SHO SV IP H R ER HR BB IBB SO HBP BK WP BF WHIP H9 HR9 BB9 SO9 SO/W
2015 KCR AL 25

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 2
2013 23 KCR AL 59 245 219 27 48 13 1 9 8 2 21 74 .219 .290 .411 .701 .281 90 1 2 0 3 2 3
2014 24 KCR AL 70 285 252 12 54 13 0 0 6 2 26 59 .214 .295 .266 .561 .280 67 5 3 4 0 0 1
2015 25 KCR AL 44 166 149 10 28 3 0 3 4 2 13 40 .188 .253 .268 .521 .229 40 2 1 0 3 1 1
5 Yrs 251 1049 943 76 211 41 4 17 30 10 81 250 .224 .290 .330 .620 .284 311 16 9 10 6 9 7
162 Game Avg. 68 284 255 21 57 11 1 5 8 3 22 68 .224 .290 .330 .620 .284 84 4 2 3 2 2 2
MLB Averages .253 .317 .397 .714 .297

Win Probability*

Year Age Tm Lg PtchR PtchW 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 0.91 -1.1 1 1 0
2012 22 KCR AL 16.8 1.7 366 2.0 8.1 -6.1 1.28 1.4 0.1 19.9 2.0 0.99 16.0 28 22 26
2013 23 KCR AL 1.8 0.2 261 -0.3 5.4 -5.7 1.25 -0.2 -0.1 2.4 0.2 0.92 -2.7 28 11 19
2014 24 KCR AL 19.3 2.0 293 2.7 6.4 -3.6 1.15 2.0 0.4 25.7 2.7 1.05 20.1 32 16 21
2015 25 KCR AL 9.6 1.0 174 0.8 4.2 -3.4 1.40 0.8 -0.3 9.4 1.0 0.97 8.9 19 12 13
5 Yrs 45.7 4.8 1103 4.9 24.1 -19.2 1.26 4.0 -0.1 55.4 5.7 0.99 41.2 108 62 79

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 1.285 28 22 26 31 11 34 29 47 25 16 30 20 3.3 17
2013 23 KCR AL 59 59 16 5 7 4 2 2 50% 24 20 18 6 33% 8 1.252 28 11 19 32 14 13 11 48 10 15 10 13 3.0 17
2014 24 KCR AL 70 70 12 4 3 1 0 1 0% 21 20 43 9 21% 7 1.152 32 16 21 29 13 28 27 43 12 15 14 17 3.0 16
2015 25 KCR AL 44 44 6 2 2 3 0 3 0% 17 14 10 4 40% 7 1.398 19 12 13 23 10 11 7 37 2 6 2 9 2.9 14
5 Yrs 251 251 44 15 16 12 5 7 42% 86 74 114 31 27% 1.259 108 62 79 116 49 86 74 177 49 52 56 59 3.1 16

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% 1.27 1.76 68% 16% 4.3% 10% 63 8 13%
2013 23 KCR AL 245 49% 3.7% 30.2% 8.6% 9.4% 48% 0.93 1.30 57% 24% 14.3% 17% 35 1 3%
2014 24 KCR AL 285 52% 0.0% 20.7% 9.1% 4.6% 24% 1.05 1.33 68% 26% 0.0% 15% 57 5 9%
2015 25 KCR AL 166 48% 1.8% 24.1% 7.8% 3.6% 21% 0.98 1.30 66% 31% 5.9% 9% 40 2 5%
5 Yrs 1049 53% 1.6% 23.8% 7.7% 5.9% 29% 1.07 1.44 65% 23% 5.8% 13% 196 16 8%
MLB Averages 45% 2.5% 19.7% 7.9% 7.4% 33% 0.83 1.11 68% 22% 7.5% 13% 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 S/SO L/SO% 3pK 4pW PAu Pitu Stru
2011 21 KCR AL 9 32 3.56 22 68.8% 27.3% 0.0% 36.4% 36.4% 72.7% 0.0% 50.0% 100.0% 55.6% 0.0% 0 0 0.0% 0 0 0 0 0 0 0 0 0 0
2012 22 KCR AL 348 1291 3.71 862 68.0% 23.8% 18.6% 29.4% 28.3% 76.2% 5.6% 51.9% 75.6% 58.9% 4.3% 15 8 29.6% 103 73 10 12 65 15.6% 15 1 0 0 0
2013 23 KCR AL 245 1010 4.12 657 65.6% 24.2% 23.9% 29.4% 22.5% 75.8% 2.3% 49.7% 68.5% 56.3% 6.5% 16 10 30.2% 74 52 2 10 64 13.5% 13 4 0 0 0
2014 24 KCR AL 286 1125 3.93 721 64.1% 19.8% 20.8% 32.0% 27.3% 80.2% 0.0% 51.4% 74.0% 54.9% 4.9% 14 8 30.4% 87 52 5 10 49 16.9% 6 6 0 0 0
2015 25 KCR AL 167 619 3.71 394 64.0% 19.3% 22.6% 29.7% 28.4% 80.7% 1.3% 51.6% 72.0% 57.5% 7.2% 12 5 24.0% 40 24 0 3 37 7.5% 5 7 0 0 0
5 Yrs 1055 4077 3.86 2656 65.7% 22.2% 20.9% 30.2% 26.7% 77.8% 2.5% 51.1% 73.1% 57.0% 5.4% 57 31 28.8% 304 201 17 35 215 14.0% 39 18 0 0 0
MLB Averages 3.82 63.9% 27.5% 16.0% 27.1% 29.4% 72.5% 1.4% 46.3% 78.0% 60.0% 4.6% 24.1% 24.1%

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% 2 3 1 118 12 4 75% 8 3 4 1 0 0 0 0 6 0
2013 23 KCR AL 245 48 4 1 9 0 3 5 4 2 7 9 6 1 67% 3 5 0 86 8 2 80% 7 2 1 0 0 0 0 0 10 0
2014 24 KCR AL 285 54 5 0 0 0 7 0 0 0 0 10 3 3 30% 1 1 0 132 6 2 75% 5 1 1 0 0 1 0 0 1 0
2015 25 KCR AL 166 28 1 0 3 0 4 2 1 1 2 16 8 5 50% 1 3 0 58 4 2 67% 2 2 2 0 0 0 0 0 6 0
5 Yrs 1049 211 21 2 17 0 25 9 8 7 10 60 29 11 48% 7 12 1 396 30 10 75% 22 8 8 1 0 1 0 0 23 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 H9 HR9 BB9 SO9 SO/W 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 3 353 161 1.181 8.4 0.5 2.2 8.0 3.67 161
2013 23 9 11 .450 3.11 137 0 26 0 0 5 144.2 129 54 50 14 42 8 151 5 1 8 598 134 1.182 8.0 0.9 2.6 9.4 3.60 134
2014 24 13 14 .481 2.56 207 0 38 0 0 5 214.2 183 66 61 14 68 8 210 8 1 9 883 161 1.169 7.7 0.6 2.9 8.8 3.09 161
2015 25 15 16 .484 2.45 251 0 44 0 0 5 257.1 211 76 70 17 81 9 250 9 1 12 1049 167 1.135 7.4 0.6 2.8 8.7 3.09 167

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 H9 BB9 SO9 SO/W HR9 Gact
2011 21 0 0 13.50 2.0 0 3 3 0 0 0 1 0.000 0.0 0.0 0.0 0.0 2
2012 22 5 4 .556 2.25 84.0 79 23 21 4 21 77 2 1.190 8.5 2.3 8.3 3.67 0.4 76
2013 23 3 3 .500 3.57 58.0 47 26 23 9 21 74 2 1.172 7.3 3.3 11.5 3.52 1.4 59
2014 24 4 4 .500 1.41 70.0 55 12 11 0 26 59 3 1.157 7.1 3.3 7.6 2.27 0.0 70
2015 25 3 2 .600 1.88 43.0 29 10 9 3 13 40 1 0.977 6.1 2.7 8.4 3.08 0.6 44
5 Yrs 15 13 .536 2.35 257.0 210 74 67 16 81 250 9 1.132 7.4 8.8 3.09 0.6 251



* - 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 1938 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)
2015 AL  44 (8th)

Adj. Pitching Runs s c a p y
2012 AL  17 (10th)

Base-Out Runs Saved (RE24)s c a p y
2012 AL  19.86 (10th)
2014 AL  25.71 (6th)

Base-Out Wins Saved (REW)s c a p y
2012 AL  2.0 (10th)
2014 AL  2.7 (7th)

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 1938-1973, 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 - 2 (2546), Average HOFer ≈ 185
Hall of Fame MonitorPitching - 9 (1005), Likely HOFer ≈ 100
JAWS Relief Pitcher (493rd), 6.0 career WAR/6.0 7yr-peak WAR/6.0 JAWS
Average HOF RP (out of 5) = 40.6 career WAR/28.2 7yr-peak WAR/34.4 JAWS

Other Resources & Links

Error?     Compare     Search SABR's Baseball Index     Other Links@google.com     Baseball-Almanac.com     Razzball     Retrosheet     WahooSam.com    

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.

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