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Rickey Henderson League
6-4-2071
Mike Keister Relief Pitcher
Retired (2026, Age 36)
CAREER BIOGRAPHICAL DATA
ERA 3.95 Total Rating B    Bats/Throws R/R
W-L 44-41 Status Retired (2026) Option Years 0  
SV 172 Age 80 (OS 81) Date of Birth 08-17-1990
K 490 Drafted Round 3, Pick 46
(2012)		 Majors Svc Time 11 years
(28 games)
IP 667.0
WHIP 1.37
OFFENSE PITCHING MENTORING
Contact vs. R D+ Contact vs. L C- Endurance C    Ldrship B+
Power vs. R D- Power vs. L D- Velocity B-   Mentor Val A+
Speed C+ Bunt B+ Control B+
POSITIONS DEFENSE/HEALTH POSTSEASON
 C * --- SS --- Range F  WS Rings 0
1B --- LF --- Arm C  WS Appearances 0
2B --- CF ---   Health B+ LCS Appearances 1
3B --- RF ---   Injured Days 0 All Star Teams 3
* League requires 50% rating to start at catcher.

Year   Team W L G GS CG SHO SV BS IP H R ER HBP BB SO WHIP ERA Awards
2015 DET
0
 0
10
0
0
0
0
 0
16.0
 10 6 6 0 8
9
1.13
3.38
2016 DET
4
 3
69
0
0
0
0
 2
129.2
 125 50 45 3 55
97
1.39
3.12
2017 DET
4
 3
50
0
0
0
0
 0
60.2
 72 43 43 0 25
46
1.60
6.38
2018 DET
1
 0
30
0
0
0
1
 0
42.2
 29 12 10 1 12
40
0.96
2.11
2019 DET
4
 3
24
5
0
0
1
 0
46.1
 44 21 19 2 21
31
1.40
3.69
2020 DET
2
 3
41
1
0
0
1
 0
60.0
 57 31 29 1 16
35
1.22
4.35
2021 DET
3
 2
10
0
0
0
0
 0
8.2
 10 3 3 0 5
4
1.73
3.12
2022 DET
8
 1
21
0
0
0
1
 1
26.0
 23 6 5 0 9
20
1.23
1.73
2023 DET
2
 5
63
0
0
0
39
 8
66.2
 73 33 32 1 21
52
1.41
4.32
2024 DET
6
 7
75
0
0
0
43
 10
78.0
 77 40 34 0 34
63
1.42
3.92
2025 DET
7
 5
70
0
0
0
46
 8
70.1
 60 28 28 1 24
47
1.19
3.58
2026 DET
3
 9
65
0
0
0
40
 10
62.0
 79 47 39 2 27
46
1.71
5.66
2071
0
 0
0
0
0
0
0
 0
0.0
 0 0 0 0 0
0
0.00
0.00
Total
44
 41
528
6
0
0
172
 39
667.0
 659 320 293 11 257
490
1.37
3.95
Career Transactions
DateTransaction
2026-11-01Mike Keister has retired from the Detroit Weretigers
2023-08-14Mike Keister of the Detroit Weretigers is injured and is expected to be out 12 days.
2016-04-01The Detroit Weretigers have promoted Fred Kim to the major league team. The Detroit Weretigers have promoted Mike Keister to the major league team. The Detroit Weretigers have designated Dave Gumpert for assignment. The Detroit Weretigers have designated Archie Scudder for assignment.
2015-10-23The Detroit Weretigers have sent Hal Matchick to the minors. The Detroit Weretigers have sent Mike Keister to the minors. The Detroit Weretigers have sent Fred Kim to the minors.
2015-09-03The Detroit Weretigers have promoted Tyson Pfeil to the major league team. The Detroit Weretigers have promoted Mike Keister to the major league team. The Detroit Weretigers have promoted Fred Kim to the major league team.
2013-04-05The Detroit Weretigers have acquired Mike Keister from the waiver wire.
2013-04-01The Washington Senators have waived Mike Keister.