Page Information
Current Status
Free Agent since 2021-11-05 * Definition of FA
High Level
Proper Name
Jacob Tanner Diekman
Stat Years
2007-2021  [mlb] 2012-2021
6-4 / 195
Left / Left
P (766)
Draft Position
Born Date/Place
1987-01-21 in Wymore, Nebraska   [34.310]
High School
Wymore Southern (Wymore,NE)
Cloud County Community College (Concordia,Kansas)
Selected by the Philadelphia Phillies in Round #30 (#923 overall) of the 2007 Amateur Entry Draft (June-Reg Phase)
Signing Scouts
Jerry Lafferty
MLB Debut
2012-05-15 - Boxscore  (Age: 25.114)
Service Time
9.050 (2021)
PHI [9] TEX [4] OAK [3] KCA [1] ARI [1]
ID Numbers
tbc id: 129326 ... retro id: diekj001 ... mlbam id: 518617
Pitch Repertoire
TBC Apps
Active Talent RatingsPitchingStrikeouts88Walks15Hittable74SO/BB41vsPower74Hitting0Durability62Team.488Ratings Explained
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Other Pitching Statistics

top csv share Sort Research Applications: MLB Stats | Minor Stats | College Stats | Draft Research
2010Mesa SolarSoxArizona Fall LeagueAFL--29.455---25-3.2141312-43---4.9134.360.009.827.3631.910.75.000
2011Scottsdale ScorpionsArizona Fall LeagueAFL--0.7911---511211.1321-614---0.792.380.004.7611.121.592.33.000
2012Philadelphia PhilliesMLB Spring TrainingSpring--0.005---25-5.021--19---0.603.600.001.8016.201.809.00.000
2013Philadelphia PhilliesMLB Spring TrainingSpring1-4.508---48110.0125514141-11.6010.800.903.6012.604.503.501.000
2014Philadelphia PhilliesMLB Spring TrainingSpring-15.7910---210-9.110661211---1.299.640.961.9310.615.795.50.000
2015Philadelphia PhilliesMLB Spring TrainingSpring-18.1810----10-11.01210101412---1.459.820.823.279.828.183.00.000
2015Texas RangersDivision SeriesPlayoffs--1.504---14-6.0211--5---0.333.
2016Texas RangersMLB Spring TrainingSpring--1.506----6-6.0311114--10.674.501.501.506.001.504.00.000
2016Texas RangersDivision SeriesPlayoffs--27.002---12-1.0533121---7.0045.009.0018.009.0027.000.50.000
2018Texas RangersMLB Spring TrainingSpring-12.089----9-8.23521561-20.923.
2019Kansas City RoyalsMLB Spring TrainingSpring--3.388----8-8.0433139--10.884.501.133.3810.133.383.00.000
2019Oakland AthleticsWild Card GamePlayoffs--0.001----1-0.1---------
2020Oakland AthleticsMLB Spring TrainingSpring--4.766----6-5.2833135---1.9412.711.594.767.944.761.67.000
2020Oakland AthleticsWild Card GamePlayoffs--0.003---2311.2----21---
2020Oakland AthleticsDivision SeriesPlayoffs--6.003----3-3.03221-4--
2021Oakland AthleticsMLB Spring TrainingSpring1-0.006----6-6.0----17---
MLB Spring Training Totals233.8868---868168.5543430724772-51.126.980.903.109.954.393.21.400
MLB Playoffs - Division Series Totals--5.409---29-10.010662210--
MLB Playoffs - Wild Card Game Totals--0.004---2411.3----21---
MLB Playoffs Totals--4.5013---413111.310662411--11.177.501.503.008.254.502.75.000
Arizona Fall League Totals--7.8016---716215.0171513-1017---1.8010.200.006.0010.
Year Context-dependent but usually self-evident. (Season, Draft Year etc) Team Name Contextual to the grid but usually self-evident. Draft = Drafted team. W Wins (Pitcher or Team) L Losses (Pitcher or Team) ERA Earned Run Average ( (9/IP)*ER ) G Games Played (or Pitched) GS Games Started CG Complete Games SHO Shutouts GF Games Finished GR Games Relieved SV Saves IP Innings Pitched H Hits R Runs ER Earned Runs HR Home Runs BB Walks SO Strikeouts WP Wild Pitches BK Balks HB Hit Batsmen from pitcher perspective WHIP Walks and Hits per Inning Pitched ( (H+BB) / IP ) H9 Hits allowed per 9 innings ( (9/IP) * H ) HR9 Home Runs allowed per 9 innings ( (9/IP) * HR ) BB9 Walks per 9 innings ( (9/IP) * BB ) SO9 Strikeouts per 9 innings ( (9/IP) * SO ) RA9 Runs Against per 9 innings ( (9/IP) * R ) SO BB Strikeouts to Walk ratio ( SO/BB ) WPct Winning Percentage (W/(W+L))