Batting
Pitching

William Kempner

Miami Marlins
P
Age: 25
Bats/Throws: R/R
6'0" / 222
DOB: 6/18/2001
(25 years, 1 month, 8 days)
P

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    Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular SeasonCollege
    SeasonTeamLevelAgeWLSVGGSIPdividerK/9BB/9HR/9BABIPLOB%GB%HR/FBdividervFAdividerERAxERAFIPxFIPWAR
    2021GONZNCAA2033111940.27.526.420.66.24672.8%3.105.66
    2022GONZNCAA212108836.012.005.250.50.29176.2%3.004.53
    2022SFGCPX21100203.113.505.400.00.50083.3%71.4%0.0%2.703.053.05
    2022SFGA21000325.29.536.351.59.33375.5%25.0%12.5%6.357.507.15
    2022SFGMiLB21100529.011.006.001.00.39178.3%39.1%12.5%5.005.855.63
    2023SFGA2213114527.09.675.000.00.28056.1%45.7%0.0%4.674.185.27
    2023SFGA+2232023034.012.443.441.32.31179.5%44.3%17.2%2.914.443.77
    2023SFGAA22000101.210.8010.800.00.50080.0%16.7%0.0%5.404.486.21
    2023SFGMiLB2245138562.211.204.310.72.30368.2%43.9%8.3%3.734.334.48
    2025MIAA+2412619026.213.163.380.00.32265.6%50.0%0.0%3.041.952.46
    2025MIAAA2431016024.011.635.630.00.22985.7%43.8%0.0%1.132.733.49
    2025MIAAAA2430113017.013.247.941.06.19490.5%34.4%12.5%2.654.185.265.34
    2025MIAMiLB2473748067.212.645.320.27.26179.3%44.1%4.3%2.264.183.063.55
    2025MIAST24000402.213.503.383.38.33383.3%14.3%25.0%6.757.865.64
    2026MIAST25001404.013.504.500.00.143100.0%28.6%0.0%0.002.904.77
    2026FGDCPROJ2512024024.08.494.851.19.29369.9%4.774.880.0
    2026SteamerPROJ2511024024.08.424.621.11.29772.1%42.2%4.464.584.64-0.1
    2026ZiPSPROJ2545043156.78.575.081.27.28867.8%5.085.18-0.4
    2026ZiPS DCPROJ2522024024.08.575.081.27.28867.8%5.085.18-0.1
    2026ATCPROJ2512018019.08.654.811.12.29369.5%4.714.65-0.1
    2026OOPSYPROJ2511024024.09.844.801.07.28874.5%4.034.260.0
    2026MIAAAA2503624031.214.785.970.85.29372.9%27.9%10.0%3.983.313.764.26
    2026MIAMLB251009012.110.222.920.73.24179.4%30.0%7.7%95.62.923.913.353.910.1
    2026FGDCROS25010909.09.264.811.14.29770.7%4.564.620.0
    2026SteamerROS25000909.09.634.781.08.29173.2%4.204.310.0
    2026ZiPSROS251112016.08.884.831.21.30268.3%4.924.92-0.1
    2026ZiPS DCROS25110909.08.884.831.21.30268.3%4.924.920.0
    2026ATC DCROS25110909.09.685.180.92.29369.6%4.454.240.0
    2026OOPSYROS25100909.010.694.511.02.27975.7%3.583.870.0
    Total- - -MLB1009012.110.222.920.73.24179.4%30.0%7.7%95.62.923.913.353.910.1
    SeasonTeamLevelAgeWLSVGGSIPdividerK/9BB/9HR/9BABIPLOB%GB%HR/FBdividervFAdividerERAxERAFIPxFIPWAR
    2021GONZNCAA2033111940.27.526.420.66.24672.8%3.105.66
    2022GONZNCAA212108836.012.005.250.50.29176.2%3.004.53
    2022SFGCPX21100203.113.505.400.00.50083.3%71.4%0.0%2.703.053.05
    2022SFGA21000325.29.536.351.59.33375.5%25.0%12.5%6.357.507.15
    2022SFGMiLB21100529.011.006.001.00.39178.3%39.1%12.5%5.005.855.63
    2023SFGA2213114527.09.675.000.00.28056.1%45.7%0.0%4.674.185.27
    2023SFGA+2232023034.012.443.441.32.31179.5%44.3%17.2%2.914.443.77
    2023SFGAA22000101.210.8010.800.00.50080.0%16.7%0.0%5.404.486.21
    2023SFGMiLB2245138562.211.204.310.72.30368.2%43.9%8.3%3.734.334.48
    2025MIAA+2412619026.213.163.380.00.32265.6%50.0%0.0%3.041.952.46
    2025MIAAA2431016024.011.635.630.00.22985.7%43.8%0.0%1.132.733.49
    2025MIAAAA2430113017.013.247.941.06.19490.5%34.4%12.5%2.654.185.265.34
    2025MIAMiLB2473748067.212.645.320.27.26179.3%44.1%4.3%2.264.183.063.55
    2025MIAST24000402.213.503.383.38.33383.3%14.3%25.0%6.757.865.64
    2026MIAST25001404.013.504.500.00.143100.0%28.6%0.0%0.002.904.77
    2026FGDCPROJ2512024024.08.494.851.19.29369.9%4.774.880.0
    2026SteamerPROJ2511024024.08.424.621.11.29772.1%42.2%4.464.584.64-0.1
    2026ZiPSPROJ2545043156.78.575.081.27.28867.8%5.085.18-0.4
    2026ZiPS DCPROJ2522024024.08.575.081.27.28867.8%5.085.18-0.1
    2026ATCPROJ2512018019.08.654.811.12.29369.5%4.714.65-0.1
    2026OOPSYPROJ2511024024.09.844.801.07.28874.5%4.034.260.0
    2026MIAAAA2503624031.214.785.970.85.29372.9%27.9%10.0%3.983.313.764.26
    2026MIAMLB251009012.110.222.920.73.24179.4%30.0%7.7%95.62.923.913.353.910.1
    2026FGDCROS25010909.09.264.811.14.29770.7%4.564.620.0
    2026SteamerROS25000909.09.634.781.08.29173.2%4.204.310.0
    2026ZiPSROS251112016.08.884.831.21.30268.3%4.924.92-0.1
    2026ZiPS DCROS25110909.08.884.831.21.30268.3%4.924.920.0
    2026ATC DCROS25110909.09.685.180.92.29369.6%4.454.240.0
    2026OOPSYROS25100909.010.694.511.02.27975.7%3.583.870.0
    Total- - -MLB1009012.110.222.920.73.24179.4%30.0%7.7%95.62.923.913.353.910.1
    Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular SeasonCollege
    SeasonTeamLevelWLERAGGSQSCGShOSVHLDBSIPTBFHRERHRBBIBBHBPWPBKSO
    2021GONZNCAA333.1011900140.218631211432965034
    2022GONZNCAA213.008800036.015825151222183048
    2022SFGCPX102.7020000003.1154110200305
    2022SFGA006.3532000005.2286441402006
    2022SFGMiLB105.0052000009.043105516023011
    2023SFGA134.671450011027.0124211814015052029
    2023SFGA+322.912300002334.0144281511513055047
    2023SFGAA005.4010000001.2103110200002
    2023SFGMiLB453.733850013362.22785234265300107078
    2025MIAA+123.041900060026.211119119010032139
    2025MIAAA311.131600001024.0961143015021031
    2025MIAAAA302.651300010017.076855215031025
    2025MIAMiLB732.264800071067.2283382017240084195
    2025MIAST006.7540000002.2133221101104
    2026MIAST000.0040001304.0161000201006
    2026FGDCPROJ124.7724000124.0108231413313223
    2026SteamerPROJ114.462400000124.01062313123121122
    2026ZiPSPROJ455.084310056.7258533532832085154
    2026ZiPS DCPROJ225.0824000124.0109221514314323
    2026ATCPROJ124.7118000119.0841811102100118
    2026OOPSYPROJ114.0324000124.0108221211313126
    2026MIAAAA033.982400063131.2137201514321133052
    2026MIAMLB102.929000000012.15084414020014
    2026FGDCROS014.56900009.0408551519
    2026SteamerROS004.2090000009.04085415110
    2026ZiPSROS114.9212016.069149828215
    2026ZiPS DCROS114.92900009.0419551519
    2026ATC DCROS114.45900009.04085515110
    2026OOPSYROS103.58900009.03974415011
    Total- - -MLB102.929000000012.15084414020014
    SeasonTeamLevelWLERAGGSQSCGShOSVHLDBSIPTBFHRERHRBBIBBHBPWPBKSO
    2021GONZNCAA333.1011900140.218631211432965034
    2022GONZNCAA213.008800036.015825151222183048
    2022SFGCPX102.7020000003.1154110200305
    2022SFGA006.3532000005.2286441402006
    2022SFGMiLB105.0052000009.043105516023011
    2023SFGA134.671450011027.0124211814015052029
    2023SFGA+322.912300002334.0144281511513055047
    2023SFGAA005.4010000001.2103110200002
    2023SFGMiLB453.733850013362.22785234265300107078
    2025MIAA+123.041900060026.211119119010032139
    2025MIAAA311.131600001024.0961143015021031
    2025MIAAAA302.651300010017.076855215031025
    2025MIAMiLB732.264800071067.2283382017240084195
    2025MIAST006.7540000002.2133221101104
    2026MIAST000.0040001304.0161000201006
    2026FGDCPROJ124.7724000124.0108231413313223
    2026SteamerPROJ114.462400000124.01062313123121122
    2026ZiPSPROJ455.084310056.7258533532832085154
    2026ZiPS DCPROJ225.0824000124.0109221514314323
    2026ATCPROJ124.7118000119.0841811102100118
    2026OOPSYPROJ114.0324000124.0108221211313126
    2026MIAAAA033.982400063131.2137201514321133052
    2026MIAMLB102.929000000012.15084414020014
    2026FGDCROS014.56900009.0408551519
    2026SteamerROS004.2090000009.04085415110
    2026ZiPSROS114.9212016.069149828215
    2026ZiPS DCROS114.92900009.0419551519
    2026ATC DCROS114.45900009.04085515110
    2026OOPSYROS103.58900009.03974415011
    Total- - -MLB102.929000000012.15084414020014
    Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular SeasonAveragesCollege
    SeasonTeamLevelK/9BB/9K/BBHR/9dividerK%BB%K-BB%dividerAVGWHIPBABIPLOB%dividerERA-FIP-dividerFIP
    2021GONZNCAA7.526.421.170.6618.3%15.6%2.7%.2051.48.24672.8%5.66
    2022GONZNCAA12.005.252.290.5030.4%13.3%17.1%.1941.28.29176.2%4.53
    2022SFGCPX13.505.402.500.0033.3%13.3%20.0%.3081.80.50083.3%60683.05
    2022SFGA9.536.351.501.5921.4%14.3%7.1%.2731.76.33375.5%1211427.50
    2022SFGMiLB11.006.001.831.0025.6%14.0%11.6%.2861.78.39178.3%991145.85
    2023SFGA9.675.001.930.0023.4%12.1%11.3%.2021.33.28056.1%98874.18
    2023SFGA+12.443.443.621.3232.6%9.0%23.6%.2221.21.31179.5%681024.44
    2023SFGAA10.8010.801.000.0020.0%20.0%0.0%.3753.00.50080.0%1281054.48
    2023SFGMiLB11.204.312.600.7228.1%10.8%17.3%.2181.31.30368.2%83964.33
    2025MIAA+13.163.383.900.0035.1%9.0%26.1%.1941.09.32265.6%77501.95
    2025MIAAA11.635.632.070.0032.3%15.6%16.7%.1391.08.22985.7%30732.73
    2025MIAAAA13.247.941.671.0632.9%19.7%13.2%.1381.35.19490.5%601175.26
    2025MIAMiLB12.645.322.380.2733.6%14.1%19.4%.1621.15.26179.3%56753.06
    2025MIAST13.503.384.003.3830.8%7.7%23.1%.2731.50.33383.3%1391637.86
    2026MIAST13.504.503.000.0037.5%12.5%25.0%.0770.75.143100.0%0602.90
    2026FGDCPROJ8.494.851.751.1921.0%12.0%9.0%.2451.48.29369.9%4.88
    2026SteamerPROJ8.424.621.821.1121.1%11.6%9.5%.2471.47.29772.1%4.58
    2026ZiPSPROJ8.575.081.691.2720.9%12.4%8.5%.2431.50.28867.8%5.18
    2026ZiPS DCPROJ8.575.081.691.2720.9%12.4%8.5%.2431.50.28867.8%5.18
    2026ATCPROJ8.654.811.801.1221.6%12.0%9.6%.2421.47.29369.5%4.65
    2026OOPSYPROJ9.844.802.051.0724.3%11.9%12.4%.2291.43.28874.5%4.26
    2026MIAAAA14.785.972.480.8538.0%15.3%22.6%.1771.29.29372.9%85793.76
    2026MIAMLB10.222.923.500.7328.0%8.0%20.0%.1820.97.24179.4%68793.35
    20268.523.432.491.1822.2%8.9%13.3%.2411.30.28772.2%4.30
    2026FGDCROS9.264.811.931.1423.2%12.1%11.2%.2401.44.29770.7%4.62
    2026SteamerROS9.634.782.011.0824.3%12.1%12.2%.2321.41.29173.2%4.31
    2026ZiPSROS8.884.831.841.2122.2%12.1%10.1%.2481.47.30268.3%4.92
    2026ZiPS DCROS8.884.831.841.2122.2%12.1%10.1%.2481.47.30268.3%4.92
    2026ATC DCROS9.685.181.870.9224.3%13.0%11.3%.2291.44.29369.6%4.24
    2026OOPSYROS10.694.512.371.0227.7%11.7%16.0%.2121.29.27975.7%3.87
    Total- - -MLB10.222.923.500.7328.0%8.0%20.0%.1820.97.24179.4%68793.35
    SeasonTeamLevelK/9BB/9K/BBHR/9dividerK%BB%K-BB%dividerAVGWHIPBABIPLOB%dividerERA-FIP-dividerFIP
    2021GONZNCAA7.526.421.170.6618.3%15.6%2.7%.2051.48.24672.8%5.66
    2022GONZNCAA12.005.252.290.5030.4%13.3%17.1%.1941.28.29176.2%4.53
    2022SFGCPX13.505.402.500.0033.3%13.3%20.0%.3081.80.50083.3%60683.05
    2022SFGA9.536.351.501.5921.4%14.3%7.1%.2731.76.33375.5%1211427.50
    2022SFGMiLB11.006.001.831.0025.6%14.0%11.6%.2861.78.39178.3%991145.85
    2023SFGA9.675.001.930.0023.4%12.1%11.3%.2021.33.28056.1%98874.18
    2023SFGA+12.443.443.621.3232.6%9.0%23.6%.2221.21.31179.5%681024.44
    2023SFGAA10.8010.801.000.0020.0%20.0%0.0%.3753.00.50080.0%1281054.48
    2023SFGMiLB11.204.312.600.7228.1%10.8%17.3%.2181.31.30368.2%83964.33
    2025MIAA+13.163.383.900.0035.1%9.0%26.1%.1941.09.32265.6%77501.95
    2025MIAAA11.635.632.070.0032.3%15.6%16.7%.1391.08.22985.7%30732.73
    2025MIAAAA13.247.941.671.0632.9%19.7%13.2%.1381.35.19490.5%601175.26
    2025MIAMiLB12.645.322.380.2733.6%14.1%19.4%.1621.15.26179.3%56753.06
    2025MIAST13.503.384.003.3830.8%7.7%23.1%.2731.50.33383.3%1391637.86
    2026MIAST13.504.503.000.0037.5%12.5%25.0%.0770.75.143100.0%0602.90
    2026FGDCPROJ8.494.851.751.1921.0%12.0%9.0%.2451.48.29369.9%4.88
    2026SteamerPROJ8.424.621.821.1121.1%11.6%9.5%.2471.47.29772.1%4.58
    2026ZiPSPROJ8.575.081.691.2720.9%12.4%8.5%.2431.50.28867.8%5.18
    2026ZiPS DCPROJ8.575.081.691.2720.9%12.4%8.5%.2431.50.28867.8%5.18
    2026ATCPROJ8.654.811.801.1221.6%12.0%9.6%.2421.47.29369.5%4.65
    2026OOPSYPROJ9.844.802.051.0724.3%11.9%12.4%.2291.43.28874.5%4.26
    2026MIAAAA14.785.972.480.8538.0%15.3%22.6%.1771.29.29372.9%85793.76
    2026MIAMLB10.222.923.500.7328.0%8.0%20.0%.1820.97.24179.4%68793.35
    20268.523.432.491.1822.2%8.9%13.3%.2411.30.28772.2%4.30
    2026FGDCROS9.264.811.931.1423.2%12.1%11.2%.2401.44.29770.7%4.62
    2026SteamerROS9.634.782.011.0824.3%12.1%12.2%.2321.41.29173.2%4.31
    2026ZiPSROS8.884.831.841.2122.2%12.1%10.1%.2481.47.30268.3%4.92
    2026ZiPS DCROS8.884.831.841.2122.2%12.1%10.1%.2481.47.30268.3%4.92
    2026ATC DCROS9.685.181.870.9224.3%13.0%11.3%.2291.44.29369.6%4.24
    2026OOPSYROS10.694.512.371.0227.7%11.7%16.0%.2121.29.27975.7%3.87
    Total- - -MLB10.222.923.500.7328.0%8.0%20.0%.1820.97.24179.4%68793.35
    Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular SeasonCollege
    SeasonTeamLevelEventsEVmaxEVLABarrelsBarrel%HardHitHardHit%dividerERAxERA
    2025MIAAAA3384.2101.920.026.1%721.2%2.654.18
    2026MIAST786.197.316.400.0%228.6%0.00
    2026MIAAAA6188.2111.725.758.2%1829.5%3.983.31
    2026MIAMLB3085.8106.117.913.3%723.3%2.923.91
    Total- - -MLB3085.8106.117.913.3%723.3%2.923.91
    SeasonTeamLevelEventsEVmaxEVLABarrelsBarrel%HardHitHardHit%dividerERAxERA
    2025MIAAAA3384.2101.920.026.1%721.2%2.654.18
    2026MIAST786.197.316.400.0%228.6%0.00
    2026MIAAAA6188.2111.725.758.2%1829.5%3.983.31
    2026MIAMLB3085.8106.117.913.3%723.3%2.923.91
    Total- - -MLB3085.8106.117.913.3%723.3%2.923.91