Merrill Kelly

Active on MLB Roster | Arizona Diamondbacks
High Level
MLB
Years
2008-2025 (2019-2025)
Proper Name
Kenneth Merrill Kelly
Nickname
Mert
Positions
P (299)
Height / Weight
6-2 / 202
Bats / Throws
Right / Right
Birthdate
October 14,1988   Age:  37.095
High School
Desert Mountain (Scottsdale,AZ)
Colleges
Arizona State University (Tempe,AZ), Yavapai College (Prescott,AZ)
Drafted/Signed
Signing Bonus
$ 125,000
Service Time
7.000 (2025)
MLB Debut
Contract Info
MLBAM ID
Retrosheet#
kellm002
Show More
[2023] Played for United States in World Baseball Classic
Show Releated Ebay Listings

Prospect Rankings

CSV
Glossary
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yearsourcetypeteamrankview rankings
2019Baseball AmericaTeamArizona Diamondbacks15View Rankings
1 record(s)
Prospect rankings are available since 1990 and are based on pre-season rankings from various ranking sites.

Pitching Statistics

CSV
Glossary
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yearteam nameleaguelevelmlb#agewleraggscgshogrgfsviphrerhrbbsowpbkhbwhiph9hr9bb9so9ra9so/bb
2008YavapaiACCACNJCAA  19505.531500000070.0825443017550001.4110.540.002.197.076.943.24
2009YavapaiACCACNJCAA  201011.481500000097.1762416024880001.037.030.002.228.142.223.67
2010Arizona StatePac10NCAA-1Jr35211034.23181800000100.09960476377862181.368.910.543.337.025.402.11
2010Hudson Valley RenegadesNYPLA-TBA-21112.11710060021.1167505191110.986.750.002.118.022.953.80
2010Bowling Green Hot RodsMidwATBA2221017.16520030016.115151318100121.418.270.554.415.518.271.25
2011Charlotte Stone CrabsFSLA+TBA3022873.28252300210129.01175247651704371.308.160.423.564.883.631.37
2012Montgomery BiscuitsSouAATBA1923833.5732900232088.1844135428616141.278.560.412.856.224.182.18
2013Montgomery BiscuitsSouAATBA2324564.1513120010073.2543434331413031.156.600.373.795.014.151.32
2013Durham BullsILAAATBA2924843.1915140010084.2743730434704131.287.870.433.617.443.932.06
2014Durham BullsILAAATBA2325942.762815001330114.0107393510371088161.268.450.792.928.533.082.92
2019Arizona DiamondbacksNLMLBARI293013144.42323200000183.1184959029571584021.319.031.422.807.764.662.77
2020Arizona DiamondbacksNLMLBARI2931322.59550000031.1269955290010.997.471.441.448.332.595.80
2021ACL DiamondbacksACLRkARI-32004.5011000004.03220271001.256.750.004.5015.754.503.50
2021Arizona DiamondbacksNLMLBARI29327114.44272700000158.0163827821411302041.299.281.202.347.414.673.17
2022Arizona DiamondbacksNLMLBARI29331383.37333300000200.1167777521611774121.147.500.942.747.953.462.90
2023Arizona DiamondbacksNLMLBARI29341283.29303000000177.2143716520691873441.197.241.013.509.473.602.71
2024Hillsboro HopsNwst2A+ARI2935006.7511000004.06331020001.5013.502.250.004.506.750.00
2024Arizona DiamondbacksNLMLBARI2935514.0313130000073.26735331119631221.178.191.342.327.704.283.32
2025Arizona DiamondbacksNLMLBARI2936963.22222200000128.298534614381210111.066.850.982.668.463.713.18
2025Texas RangersALMLBTEX2336334.2310100000055.1592626910461111.259.601.461.637.484.234.60
Tot:MLB (7 yrs) MLB   65533.77172172000001008.1907448422130300911159171.208.101.162.688.134.003.04
Tot:AL (1 yrs) AL   334.2310100000055.1592626910461111.259.601.461.637.484.234.60
Tot:NL (7 yrs) NL   62503.7416216200000953.0848422396121290865148161.198.011.142.748.173.992.98
Tot:Minors (7 yrs) Minors   39263.4312778006490535.147623020429196388278261.268.000.493.306.523.871.98
Tot:Rk (1 yrs) Rk   004.5011000004.03220271001.256.750.004.5015.754.503.50
Tot:A- (1 yrs) A-   112.11710006021.1167505191110.986.750.002.118.022.953.80
Tot:A (1 yrs) A   017.16520003016.115151318100121.418.270.554.415.518.271.25
Tot:A+ (2 yrs) A+   873.38262400120133.01235550751724371.318.320.473.454.873.721.41
Tot:AA (2 yrs) AA   1393.834521002240162.013875697591029171.227.670.393.285.674.171.73
Tot:AAA (2 yrs) AAA   1782.944329003140198.21817665147117812291.278.200.633.228.063.442.51
Tot:College (3 yrs) College   2543.574818000300267.125713810667822162181.258.650.202.637.444.652.83
Avg:MLB - 162 Inning avg MLB   ðŸ”’🔒🔒🔒🔒🔒🔒🔒🔒🔒162🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒
Avg:Minors - 162 Inning avg College   ðŸ”’🔒🔒🔒🔒🔒🔒🔒🔒🔒162🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒
Avg:College - 162 Inning avg College   ðŸ”’🔒🔒🔒🔒🔒🔒🔒🔒🔒162🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒
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Other Pitching Statistics

CSV
Glossary
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yearteam nameleaguecategoryagewleraggscgshogrgfsviphrerhrbbsowpbkhbwhiph9hr9bb9so9ra9so/bb
2013Salt River RaftersArizona Fall LeagueAFL24104.91900092011.018762390001.9114.731.642.457.365.733.00
2013Tampa Bay RaysMLB Spring TrainingSpring24000.0010001101.00000020000.000.000.000.0018.000.000.00
2014Tampa Bay RaysMLB Spring TrainingSpring25201.8030003105.04110141001.007.200.001.807.201.804.00
2015SK WyvernsKoreaKorea2611104.1330010000181.0188878316541399251.349.350.802.696.914.332.57
2016SK WyvernsKoreaKorea27983.68313100000200.1205918215601528071.329.210.672.706.834.092.53
2017SK WyvernsKoreaKorea281673.60303000000190.0204857616451899001.319.660.762.138.954.034.20
2018SK WyvernsKoreaKorea291274.09282800000158.11527872184716152131.268.641.022.679.154.433.43
2019Arizona DiamondbacksMLB Spring TrainingSpring30135.91660000021.120151419110011.368.440.423.804.646.331.22
2020Arizona DiamondbacksMLB Spring TrainingSpring31005.6332001008.09551361001.5010.131.133.386.755.632.00
2021Arizona DiamondbacksMLB Spring TrainingSpring32025.30550000018.222131136171001.5010.611.452.898.206.272.83
2022Arizona DiamondbacksMLB Spring TrainingSpring33100.0022000007.011000130000.141.290.000.0016.711.290.00
2023Arizona DiamondbacksMLB Spring TrainingSpring34013.8622000007.06330470001.437.710.005.149.003.861.75
2023Arizona DiamondbacksDivision SeriesPlayoffs34100.0011000006.13000250000.794.260.002.847.110.002.50
2023Arizona DiamondbacksChampionship SeriesPlayoffs34114.22220000010.265536140001.125.062.535.0611.814.222.33
2023Arizona DiamondbacksWorld SeriesPlayoffs34101.2911000007.03111090000.433.861.290.0011.571.290.00
2024Arizona DiamondbacksMLB Spring TrainingSpring35116.00440000012.0148832180011.3310.502.251.5013.506.009.00
2025Arizona DiamondbacksMLB Spring TrainingSpring36104.70550000015.1198835160001.5711.151.762.939.394.703.20
Tot:AFL (1 Yrs) AFL 104.91900029011.018762390001.9114.731.642.457.365.733.00
Tot:Korea (4 Yrs) Korea 48323.8611989100300729.274934131365206641314251.319.240.802.547.914.213.11
Tot:Spring (9 Yrs) Spring 674.7231260025095.19554501130943021.318.971.042.838.875.103.13
Tot:Playoffs (1 Yrs) Playoffs 312.25440000024.0126648280000.834.501.503.0010.502.253.50

Batting Statistics

CSV
Glossary
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yearteam nameleaguelevelmlb#agepostbc+gabrh2b3bhrrbisbcsbbsohbpshsfibbgdptbpaxbh1bavgobpslgopssecaisobabipbb%so%so/bbab/hr
2019Arizona DiamondbacksNLMLBARI2930P3052310002002250600216001.019.056.019.075.038.000.0373.3341.6712.500.00
2021Arizona DiamondbacksNLMLBARI2932P2747131001004270700145812.064.137.085.222.106.021.1506.9046.556.750.00
Tot:MLB (2 yrs) MLB     579944100300652013003511813.040.095.051.146.071.010.0855.0844.078.67
Tot:NL (2 yrs) NL     579944100300652013003511813.040.095.051.146.071.010.0855.0844.078.67
Avg:MLB - 162 game avg MLB     162🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒
TBC+ Metric is based on wOBA with inclusion of stolen base value. TBC's version of wOBA excludes park factors and uses static coefficients across all levels and years for ease of implementation.
* indicates player had a low sample size of plate appearances.

Use the Compare Players (TBC PREMIUM) application to compare stats and biography for 2-25 players at a time!

Other Batting Statistics

CSV
Glossary
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yearteam nameleaguecategoryagegabrh2b3bhrrbisbcsbbsohbpshsfibbgdptbpaxbh1bavgobpslgopssecaisobabipbb%so%so/bbab/hr
2019Arizona DiamondbacksMLB Spring TrainingSpring30230100000001000001301.333.333.333.666.000.000.5000.0033.330.000.00
2021Arizona DiamondbacksMLB Spring TrainingSpring32351200000000010002602.400.400.400.800.000.000.4000.000.000.000.00
Tot:Spring (2 Yrs) Spring 581300000001010003903.375.375.375.750.000.000.4290.0011.11

Talent Ratings

About Talent Ratings
StrikeoutsWalksHittableSO/BBvs PowerDurabilityTeam Success
347454655453.484