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Branch Rickey League
6-15-2229
Bob Mairena Relief Pitcher
Retired (1971, Age 37)
CAREER BIOGRAPHICAL DATA
ERA 3.92 Total Rating B+   Bats/Throws L/R
W-L 53-65 Status Deceased (2007) Option Years 0  
SV 301 Age at Death 73 Date of Birth 01-04-1934
K 857 Drafted Round 1, Pick 5
(1952)		 Majors Svc Time 13 years
(111 games)
IP 1064.0
WHIP 1.38
OFFENSE PITCHING MENTORING
Contact vs. R D- Contact vs. L D- Endurance C-   Ldrship D-
Power vs. R F  Power vs. L D- Velocity B+   Mentor Val C-
Speed C  Bunt D- Control B 
POSITIONS DEFENSE/HEALTH POSTSEASON
 C * --- SS --- Range D  WS Rings 1
1B --- LF --- Arm C+ WS Appearances 1
2B --- CF ---   Health C- LCS Appearances 4
3B --- RF ---   Injured Days 0 All Star Teams 4
* League requires 50% rating to start at catcher.

Year   Team G AB H 2B 3B HR BB SO OPS OBP SLG ISO AVG Awards
1956 CHN
19
185
57
10
1
4
14
 37
.796
.358
.438
.130
.308
1957 CHN-KC
8
40
14
1
1
0
6
 9
.860
.435
.425
.075
.350
1958 KC
60
246
60
10
1
3
38
 51
.673
.344
.329
.085
.244
1959 KC
62
252
75
10
2
5
33
 42
.793
.380
.413
.115
.298
1960 KC
59
209
60
8
2
5
13
 50
.754
.338
.416
.129
.287
1961 KC
60
192
39
5
2
3
12
 39
.551
.254
.297
.094
.203
1962 KC-CHN
55
267
74
12
1
3
25
 60
.701
.338
.363
.086
.277
1963 CHN
67
330
71
11
4
5
28
 64
.599
.281
.318
.103
.215
1964 CHN
67
437
143
22
5
11
48
 87
.871
.395
.476
.149
.327
1965 CHN
47
261
64
11
1
9
24
 50
.707
.309
.398
.153
.245
1966 CHN
61
271
64
7
0
5
30
 64
.631
.314
.317
.081
.236
1967 CHN
77
351
86
13
1
10
19
 83
.657
.284
.373
.128
.245
1968 CHN-BAL
46
324
72
10
1
6
38
 66
.619
.304
.315
.093
.222
1969 BAL
37
373
95
8
2
13
32
 68
.707
.315
.391
.137
.255
1970 BAL
42
409
98
15
3
11
38
 83
.681
.309
.372
.132
.240
1971 BAL
2
6
0
0
0
0
0
 4
.000
.000
.000
.000
.000
2229
0
0
0
0
0
0
0
 0
.000
.000
.000
.000
.000
Total 769 4153 1072 153 27 93 398 857 .700 .325 .375 .117 .258
Career Transactions
DateTransaction
1971-11-01Bob Mairena has retired from the Baltimore Terrapins
1971-04-09The Baltimore Terrapins have designated Bob Mairena for assignment.
1968-07-06Trade #1647962 has been completed between the Chicago Cossacks and the Baltimore Terrapins. The Baltimore Terrapins receive Dennis Fitzgerald, Bob Mairena from the Chicago Cossacks in exchange for Draft Pick 1972 Round 1 BAL (Tom Overy), Draft Pick 1971 Round 2 BAL (Kenta Kawai).
1966-07-14Bob Mairena of the Chicago Cossacks is injured and is expected to be out 21 days.
1966-04-03Bob Mairena of the Chicago Cossacks is injured and is expected to be out 21 days.
1963-09-13Bob Mairena of the Chicago Cossacks is injured and is expected to be out 17 days.
1963-07-07Bob Mairena of the Chicago Cossacks is injured and is expected to be out 15 days.
1962-09-07Bob Mairena of the Chicago Cossacks is injured and is expected to be out 20 days.
1962-05-21Trade #1640888 has been completed between the Chicago Cossacks and the Kansas City Prairie Princes. The Kansas City Prairie Princes receive Steve Kelley, Jack Law, Jim Blanks, Bob Cowley from the Chicago Cossacks in exchange for Billy Smith, Bob Mairena, Chad Gagliano, Draft Pick 1964 Round 1 KC (Keith Tobin).
1957-09-16The Kansas City Prairie Princes have promoted Bob Mairena to the major league team.
1957-07-02Trade #1636254 has been completed between the Chicago Cossacks and the Kansas City Prairie Princes. The Kansas City Prairie Princes receive Chad Gagliano, Bob Mairena, Steve Reams, Draft Pick - 1960 Round 2 (CHN) from the Chicago Cossacks in exchange for Draft Pick 1958 Round 1 KC (Roy Norman), Draft Pick 1962 Round 1 KC (Zenzo Tadano).
1957-04-13The Chicago Cossacks have promoted Carl Holman to the major league team. The Chicago Cossacks have sent Bob Mairena to the minors.
1957-04-01The Chicago Cossacks have promoted Bob Mairena to the major league team. The Chicago Cossacks have promoted Leon Gardner to the major league team.
1956-06-08The Chicago Cossacks have promoted Dennis Fitzgerald to the major league team. The Chicago Cossacks have sent Bob Mairena to the minors.
1956-04-01The Chicago Cossacks have promoted Bob Mairena to the major league team. The Chicago Cossacks have waived Joe Ezzell.
1952-04-02The Chicago Cossacks have promoted Rick Campbell to the major league team. The Chicago Cossacks have promoted Vance Oertel to the major league team. The Chicago Cossacks have sent Chuck Rizzuto to the minors. The Chicago Cossacks have sent Bob Mairena to the minors.
1952-04-01The Chicago Cossacks have auto-promoted Bob Mairena to the major leagues.
1951-04-01Trade #1630385 has been completed between the Kansas City Prairie Princes and the Chicago Cossacks. The Chicago Cossacks receive Draft Pick - 1954 Round 1 (KC), Draft Pick 1952 Round 1 KC (Bob Mairena) from the Kansas City Prairie Princes in exchange for Chico Jackson, Gene Porto, Vicente Shannon.