P Jeff Underdahl #29
Chicago Cubs MLB
Age: 27 | Bats: R | Throws: R | Morale: Great
10/26/2026
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P JEFF UNDERDAHL #29 - AGE: 27 - BATS: R - THROWS: R - MORALE: GREAT
G GS Rec SV ERA IP HA HR BB K WHIP WAR
60 0 1-2 1 2.97 78.2 50 6 28 87 0.99 1.7
PITCHING RATINGS (OSA)
Overall Pot. Overall Vs Left Vs Right Pot.
Stuff 16 15 16 16
Movement 14 13 15 14
Control 15 14 15 15
PITCHING RATINGS
Pitch Cur. Pot.
Slider 15 15
Curveball 14 14
Changeup 12 15
Sinker 14 14
 
OTHER PITCHING RATINGS
Velocity 96-98 Mph
Stamina 5
Suggested Role Bullpen
Type Extreme Groundball
Hold Runners 11
Defense 15
RUN/BUNT RATINGS
Running Speed: 1
Stealing Ability: 6
Baserunning Inst.: 4
Sacrifice Bunt: 7
Bunt for Hit: 2
   
GAME LOG, LAST 10 GAMES
Date Vs. Result Start IP H R ER BB K Dec
10/04/2026 LAD Loss, 4-5 1.0 4 3 3 1 1 Loss
10/01/2026 @ LAD Win, 7-5 2.2 2 0 0 1 2 Win
09/25/2026 MIL Loss, 10-11 1.2 0 0 0 0 2
09/24/2026 PIT Loss, 2-9 1.1 1 1 1 2 1
09/22/2026 PIT Win, 13-2 2.0 2 1 1 0 1
09/19/2026 @ STL Loss, 4-6 1.1 2 1 1 1 0
09/16/2026 ARI Loss, 3-6 2.1 2 0 0 0 1
09/14/2026 ARI Loss, 1-6 2.1 0 0 0 1 3
09/08/2026 @ CIN Loss, 4-6 1.0 0 0 0 0 0
09/04/2026 @ PHI Loss, 1-5 1.1 2 3 3 1 1
PERSONALITY
Underdahl has great knowledge of the game.
High: Adaptability, Intelligence
Birthday:12/12/1998
Born in:University, FL
Nationality:American
Height:6' 0"
Weight:205 lbs
Local Popularity:Well Known
National Pop.:Insignificant
STATUS
Contract:Major League Contract
Salary:$563,500
Signed Through:2026 Season
Major Service:1 Year, 154 Days
Service This Yr:182 Days
40-Man Service:2 Years, None
Pro Service:5 Years
Arbitration Eligibility:Not yet eligible
Option Years:2 option years left
Contract Extension: -
Drafted:2021, 30th Pick in Round 1
MAJOR LEAGUE BASEBALL 2026 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 60 0 1 2 1 2.97 78.2 50 28 26 6 28 87 0 0.0 0 0 0.0
Pitching SVO BS SV% RA GF BR/9 H/9 K/9 BB/9 FIP WHIP FIP- WAR BABIP        
Overall 7 6 14.3 60 12 9.38 5.72 9.95 3.20 2.95 0.99 66 1.7 .235        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 144 24 12 1 3 14 19 41 1 0 1 .167 .267 .326 .593      
vs. RHB 135 26 5 2 3 14 9 46 0 3 3 .193 .259 .326 .584      
MAJOR LEAGUE BASEBALL 2026 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
March 1 0 0 0 0 0.00 0.1 0 0 0 0 0 1  
April 9 0 0 1 0 4.61 13.2 13 8 7 2 6 15  
May 10 0 0 0 0 1.59 11.1 7 3 2 2 2 12  
June 9 0 1 0 0 1.59 11.1 3 2 2 0 3 18  
July 10 0 0 1 0 5.84 12.1 13 8 8 2 6 13  
August 11 0 0 0 1 0.63 14.1 4 1 1 0 6 16  
September 10 0 0 0 0 3.52 15.1 10 6 6 0 5 12  
Spring Training 8 0 0 0 0 4.26 12.2 12 6 6 2 5 17  
Postseason 2 0 1 1 0 7.36 3.2 6 3 3 1 2 3  
Last Year 43 4 2 3 1 3.41 68.2 62 27 26 6 39 74  
Career 103 4 3 5 2 3.18 147.1 112 55 52 12 67 161  
Home 34 0 1 2 1 2.58 45.1 24 13 13 1 16 57  
Road 26 0 0 0 0 3.51 33.1 26 15 13 5 12 30  
Grass 60 0 1 2 1 2.97 78.2 50 28 26 6 28 87  
Night 60 0 1 2 1 2.97 78.2 50 28 26 6 28 87  
As Reliever / Substitution 60 0 1 2 1 2.97 78.2 50 28 26 6 28 87  
CAREER PITCHING STATS
Year/Team/League Age G GS W L SV ERA IP HA R ER HR BB K CG SHO WHIP BABIP FIP WAR ERA+
2025 Chicago - MLB 26 43 4 2 3 1 3.41 68.2 62 27 26 6 39 74 0 0 1.47 .308 3.50 1.0 125
2026 Chicago - MLB 27 60 0 1 2 1 2.97 78.2 50 28 26 6 28 87 0 0 0.99 .235 2.95 1.7 151
Total MLB 103 4 3 5 2 3.18 147.1 112 55 52 12 67 161 0 0 1.21 .271 3.21 2.7 138
CAREER MINOR LEAGUE PITCHING STATS
Year/Team/League Age G GS W L SV ERA IP HA R ER HR BB K CG SHO WHIP BABIP FIP WAR ERA+
2021 Total - 22 16 12 6 2 0 2.09 81.2 64 21 19 6 19 103 0 0 1.02 .299 2.33 3.0 100
2021 Houston (GCL) - R 22 11 11 5 0 0 3.40 47.2 42 21 18 2 24 58 0 0 1.38 .323 5.82 0.9 188
2022 Lake Elsinore - A+ 23 27 27 12 4 0 1.17 162.0 94 25 21 5 23 156 0 0 0.72 .221 1.81 3.6 195
2022 Amarillo - AA 23 1 1 0 0 0 3.60 5.0 3 2 2 1 1 6 0 0 0.80 .182 4.66 0.1 125
2023 Amarillo - AA 24 23 23 2 9 0 5.34 113.0 122 74 67 9 41 80 0 0 1.44 .318 4.86 1.9 97
2023 El Paso - AAA 24 7 7 0 4 0 5.70 30.0 33 19 19 2 14 18 0 0 1.57 .316 4.82 0.4 83
2024 Iowa - AAA 25 25 25 0 10 0 4.93 102.1 115 60 56 10 38 56 0 0 1.50 .314 5.30 0.6 94
2025 Iowa - AAA 26 7 0 3 1 0 4.91 11.0 13 6 6 1 7 7 0 0 1.82 .343 4.90 0.0 94
Total PCL 39 32 3 15 0 5.09 143.1 161 85 81 13 59 81 0 0 1.53 .317 5.17 91.7
Total TEX 24 24 2 9 0 5.26 118.0 125 76 69 10 42 86 0 0 1.42 .314 4.85 97.7
Total CAL 27 27 12 4 0 1.17 162.0 94 25 21 5 23 156 0 0 0.72 .221 1.81 194.6
Total GCL 11 11 5 0 0 3.40 47.2 42 21 18 2 24 58 0 0 1.38 .323 5.82 188.4
CAREER POSTSEASON PITCHING STATS
Year/Team/League Age G GS W L SV ERA IP HA R ER HR BB K CG SHO WHIP BABIP FIP WAR ERA+
2021 Houston (GCL) - GCL 22 2 2 0 0 0 0.82 11.0 12 6 1 0 1 10 0 0 1.18 .343 4.34 0.4 782
2022 Lake Elsinore - CAL 23 3 3 1 1 0 2.00 18.0 11 4 4 1 4 20 0 0 0.83 .238 1.93 0.4 114
2026 Chicago - MLB 27 2 0 1 1 0 7.36 3.2 6 3 3 1 2 3 0 0 2.18 .385 5.13 -0.0 61
Total MLB 2 0 1 1 0 7.36 3.2 6 3 3 1 2 3 0 0 2.18 .385 5.13 61.0
Total CAL 3 3 1 1 0 2.00 18.0 11 4 4 1 4 20 0 0 0.83 .238 1.93 113.5
Total GCL 2 2 0 0 0 0.82 11.0 12 6 1 0 1 10 0 0 1.18 .343 4.34 782.4
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2021 Houston (GCL) - R P 10 10 1 3 0 4 0 1.000 47.2 0.76 -0.9 .723
2022 Amarillo - AA P 1 1 0 0 0 0 0 .000 5.0 0.00 -0.0 .000
2022 Lake Elsinore - A+ P 27 27 12 19 0 32 1 .969 162.0 1.72 -0.5 .945
2022 Lake Elsinore - A+ C 2 0 12 1 0 13 0 1.000 13.2 8.56 -0.0 .000 0 1 0 0.0
2023 El Paso - AAA P 7 7 2 7 0 9 0 1.000 30.0 2.70 +0.0 1.140
2023 Amarillo - AA P 23 23 4 13 0 18 1 .944 113.0 1.35 +0.7 1.456
2024 Iowa - AAA P 25 25 9 17 1 26 0 1.000 102.1 2.29 +1.6 1.179
2024 Iowa - AAA C 24 23 175 21 3 200 4 .980 200.0 8.82 +0.5 .929 1 24 8 33.3
2025 Chicago - MLB P 43 4 4 3 0 7 0 1.000 68.2 0.92 -0.0 .988
2025 Iowa - AAA P 6 0 0 3 0 3 0 1.000 11.0 2.45 -0.2 .974
2026 Chicago - MLB P 60 0 4 6 1 10 0 1.000 78.2 1.14 +0.9 1.489
TOTAL P 202 97 36 71 2 109 2 .982 618.1 1.56 +1.6 1.127
TOTAL C 26 23 187 22 3 213 4 .981 213.2 8.80 +0.4 .929 1 25 8 32.0
PLAYER HISTORY
06/14/2021 Drafted in the 2021 first-year player draft (Round 1, Pick 30, 30th overall pick) by the Houston Astros, out of college (Notre Dame).
12/27/2021 Was traded by the Houston Astros to the San Diego Padres in exchange for RP Keone Kela.
01/01/2022 OSA scouting updated ratings (potential): Stuff: 10 (14); Movement: 12 (13); Control: 9 (14).
06/19/2022 Was selected to the 2022 California League All-Star Game.
08/25/2022 Injured (Finger blister), day-to-day for 2 days.
09/01/2022 Wins the CAL Pitcher of the Month Award.
10/07/2022 Wins the 2022 CAL Outstanding Pitcher Award.
01/01/2023 OSA scouting updated ratings (potential): Stuff: 11 (14); Movement: 13 (13); Control: 11 (14).
06/25/2023 Was selected to the 2023 Texas League All-Star Game.
01/01/2024 OSA scouting updated ratings (potential): Stuff: 12 (14); Movement: 13 (13); Control: 13 (14).
01/01/2024 Was traded by the San Diego Padres to the Chicago Cubs, along with C Austin Hedges, in exchange for $1.
09/08/2024 Injured (Back stiffness), day-to-day for 4 days.
01/01/2025 OSA scouting updated ratings (potential): Stuff: 15 (16); Movement: 13 (13); Control: 15 (15).
09/26/2025 Wins the 2025 Pacific Coast League Round 2 with the Iowa Cubs!
11/10/2025 Received a 1-year contract worth a total of $563,500 through automatic renewal.
01/01/2026 OSA scouting updated ratings (potential): Stuff: 16 (16); Movement: 14 (14); Control: 15 (15).
Wednesday, August 4th , 2021 - OOTP Baseball 22.7 Build 61