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William Kempner
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MIA

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TeamMIA PosRP Age25
ThrowsR $/Game-3.3 RCL R%0

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Razzball 2026 rest of season projections for William Kempner of the Miami Marlins have him as the #740 ranked player and #324 relief pitcher (RP) worth $-12.2 in standard 12 team 5x5 mixed leagues for fantasy baseball.

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Grey Albright's 2026 Player Summary

William Kempner Stats

GGSQSWLSVHLDIPTBFHERHRBBKERAFIPWHIPBABIPH/9K/9BB/9HR/9K%BB%$
Last 7 Days10000002.38000020.002.600.000.0000.07.80.00.025.00.02.6
Last 30 Days50010008.030300290.001.900.630.1673.410.12.30.030.06.73.9
Season60010009.0333002100.001.880.560.1503.010.02.00.030.36.1-7.3
ROS Proj1700110217.07415829184.164.381.400.2917.99.54.81.124.312.0-11.9

William Kempner 2026 Projections | Preseason

GGSQSWLSVHLDIPTBFHERKBBERAFIPWHIPK/9BB/9HR/9K%BB%$All Rank
Preseason (Grey)
Preseason (Steamer)2600110326.4117251425144.744.701.478.44.61.021.011.6-9.7790
Prospectonator60003360.0264532864324.211.429.64.81.124.312.0-5.3

William Kempner Projections | Streamonator (Subscribe/login to see pitcher projections)

William Kempner daily MLB projections and fantasy value for probable starts in next 7-10 days. LU=Lineup. If the lineup has been released and incorporated into the projections, it is listed as "Live".

William Kempner Projections | DFS (Subscribe to see DFS MLB projections)

William Kempner daily fantasy baseball projections for DFS sites such as DraftKings and FanDuel. LU=Lineup. If the lineup has been released and incorporated into the projections, it is listed as "Live".

William Kempner Trade Value | Try our free Fantasy Baseball Trade Analyzer to evaluate trade offers.

William Kempner Game Log | Games Started

OPPDECIPBFPCHRERBBKERAFIPWHIPBABIPHRProj $Act $

William Kempner Game Log | Last 30 Day Relief Appearances

OPPDECIPStartIPBFPCHRERBBKHRERAFIPWHIP$
Jun 15@PHI52.38330000200.002.670.001.6
Jun 10ARIW72.08360002300.003.101.0036.5
Jun 5TB71.35131000100.001.610.75-4.8
May 31@NYM61.36282000300.00-1.431.5010.0
May 30@NYM81.03120000000.003.060.00-14.6
May 5BAL81.0380000100.001.140.00-7.0

William Kempner Stats | Season

William Kempner stats and 5x5 fantasy value from 2013-2026.
PeriodTeamGGSQSWLSVHLDBFIPHERHRBBKERAFIPWHIPBABIPHR/9BB/9K/9$
2013 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2014 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2015 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2016 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2017 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2018 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2019 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2021 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2022 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2023 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2024 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2025 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2026MIA6001000339.03002100.001.880.560.1500.02.010.0-7.3

William Kempner Stats | Monthly

William Kempner 2026 fantasy value by month for 5x5 leagues.
GGSQSWLSVHLDIPHERKBBERAFIPWHIPBABIPH/9K/9BB/9HR/9$$/G$
May10000001.000100.001.030.000.0000.09.00.00.0-9.01.7
June30010005.710620.002.500.530.0831.69.53.20.09.918.0

William Kempner Fantasy Baseball | Rest of Season Player Rater

$Point Shares$W$$SV$$ERA$$WHIP$$K$Pos RkTot Rk
MLB 10 ESPN-16.3-4.5-0.3-16.00.10.0-1.1316768
MLB 10 Y!-16.3-4.5-0.3-16.00.10.0-1.1316767
MLB 12 ESPN-12.2-5.2-0.5-11.20.1-0.1-1.5324740
MLB 12 Y!-12.2-5.2-0.5-11.20.1-0.1-1.5324740
MLB 14 ESPN-9.2-5.9-0.5-8.20.1-0.1-1.5314733
MLB 14 Y!-9.2-5.9-0.5-8.20.1-0.1-1.5314736
MLB 15 ESPN-9.3-6.3-0.7-7.40.0-0.2-2.0323781
MLB 15 Y!-9.3-6.3-0.7-7.40.0-0.2-2.0323781
MLB 16 ESPN-8.8-6.6-0.7-7.00.0-0.2-1.9323796
MLB 16 Y!-8.8-6.6-0.7-7.00.0-0.2-1.9323797
AL 10
NL 10-7.1-4.80.1-7.70.00.0-0.5139416
AL 12
NL 12-6.1-5.50.1-6.60.00.0-0.6137453

William Kempner Fantasy Baseball | Rest of Season Player Rater (non-standard 5x5)

$Point Shares$W$$SV$$ERA$$WHIP$$K$$QS$$HLD$Pos RkTot Rk
6x6 (QS) ESPN 12-8.6-5.1-0.8-7.10.1-0.1-1.70.00.0321439
6x6 (QS) Y! 12-8.6-5.1-0.8-7.10.1-0.1-1.70.00.0321439
6x6 (Holds) ESPN 12-27.9-6.9-1.1-19.00.20.0-2.20.0-6.8352542
6x6 (Holds) Y! 12-27.9-6.9-1.1-19.00.20.0-2.20.0-6.8352542
7x7 ESPN 12-34.5-7.0-0.6-23.60.10.0-1.20.0-10.2357556
7x7 Y! 12-34.5-7.0-0.6-23.60.10.0-1.20.0-10.2357556

William Kempner Fantasy Baseball | Preseason Player Rater

$Point Shares$W$$SV$$ERA$$WHIP$$K$Pos RkTot Rk
MLB 10 ESPN-12.6-5.7-1.1-9.2-0.1-0.6-2.6409805
MLB 10 Y!-5.8-3.3-0.9-2.6-0.1-0.4-2.8394644
MLB 12 ESPN-9.7-5.8-0.7-6.9-0.1-0.4-2.6392790
MLB 12 Y!-7.3-4.0-1.2-2.8-0.2-0.6-3.5395685
MLB 14 ESPN-6.6-5.9-0.4-4.90.0-0.2-2.1393787
MLB 14 Y!-8.5-4.7-1.5-2.7-0.3-0.8-4.2394730
MLB 15 ESPN-6.5-6.0-0.4-4.4-0.1-0.2-2.4394808
MLB 15 Y!-9.4-5.1-1.7-2.6-0.4-0.9-4.8398757
MLB 16 ESPN-6.0-6.1-0.3-4.30.0-0.2-2.2392834
MLB 16 Y!-10.3-5.4-1.9-2.8-0.5-1.0-5.1400805
AL 10
NL 10-4.0-5.90.1-4.20.0-0.1-0.8187449
AL 12
NL 12-2.9-6.10.1-3.40.00.0-0.6166470

William Kempner Fantasy Baseball | Preseason Player Rater (non-standard 5x5)

$Point Shares$W$$SV$$ERA$$WHIP$$K$$QS$$HLD$Pos RkTot Rk
6x6 (QS) ESPN 12-8.3-5.8-1.1-4.6-0.1-0.5-3.00.0402525
6x6 (Holds) ESPN 12-8.3-5.8-1.1-4.6-0.1-0.5-3.00.076525
7x7 ESPN 12-48.7-10.1-3.8-12.8-1.0-1.8-7.20.0-23.1376674

William Kempner 2026 Projections | Preseason

GGSQSWLSVHLDIPTBFHERKBBERAFIPWHIPK/9BB/9HR/9K%BB%$All Rank
Preseason (Grey)
Preseason (Steamer)2600110326.4117251425144.744.701.478.44.61.021.011.6-9.7790
Prospectonator60003360.0264532864324.211.429.64.81.124.312.0-5.3

William Kempner Fantasy Outlook For 2026

Grey Albright Player Summary

Player data for William Kempner maintained by | Updated: