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| Name | Team | Age |
| Roberto Mayo | Retired (2016, Age 36) | 38 |
| Drafted | Position | Bats/Throws |
| Round 3, Pick 43 (2004) |
RP | L/L |
| League | Option Years
|
Majors Service Time |
| Gibson Feller League | 0 | 3 years (101 games) |
| Total Rating
|
Arm | Range |
| Contact vs R | Contact vs L | Speed |
| Power vs R | Power vs L | Bunting |
| Endurance | Velocity | Control |
| Leadership
|
Mentor Value
|
|
| Health
|
Injured Days
|
Birthday |
| 0 | 5/11/1980 | |
| WS Rings | WS Appearances | LCS Appearances |
| 0 | 0 | 1 |
| Alt Pos (---) | Alt Pos (---) | Alt Pos (---) |
| (0.0 %) | (0.0 %) | (0.0 %) |
Stats | Splits | Playoffs | Energy | Improvements | Past Skills | Awards | Batting | Fielding | Game Log
| Year | Vs | G | IP | SO | BB | H | WHIP |
| 2006 | AHB | 7 | 6.2 | 5 | 1 | 8 | 1.35 |
| 2006 | HHB | 12 | 16.0 | 13 | 8 | 18 | 1.63 |
| 2006 | LHB | 12 | 5.1 | 4 | 4 | 3 | 1.31 |
| 2006 | RHB | 18 | 17.1 | 14 | 5 | 23 | 1.62 |
| 2007 | AHB | 12 | 13.1 | 6 | 2 | 20 | 1.65 |
| 2007 | HHB | 16 | 28.2 | 25 | 9 | 44 | 1.85 |
| 2007 | LHB | 23 | 7.2 | 3 | 4 | 21 | 3.26 |
| 2007 | RHB | 27 | 34.1 | 28 | 7 | 43 | 1.46 |
| 2014 | AHB | 42 | 77.2 | 54 | 30 | 83 | 1.45 |
| 2014 | HHB | 45 | 75.1 | 55 | 28 | 57 | 1.13 |
| 2014 | LHB | 75 | 44.1 | 39 | 13 | 30 | 0.97 |
| 2014 | RHB | 87 | 108.2 | 70 | 45 | 110 | 1.43 |
| 2015 | AHB | 18 | 21.1 | 19 | 13 | 30 | 2.02 |
| 2015 | HHB | 14 | 22.1 | 25 | 5 | 27 | 1.43 |
| 2015 | LHB | 23 | 12.2 | 15 | 6 | 15 | 1.66 |
| 2015 | RHB | 30 | 31.0 | 29 | 12 | 42 | 1.74 |
| 2018 | AHB | 0 | 0.0 | 0 | 0 | 0 | 0.00 |
| 2018 | HHB | 0 | 0.0 | 0 | 0 | 0 | 0.00 |
| 2018 | LHB | 0 | 0.0 | 0 | 0 | 0 | 0.00 |
| 2018 | RHB | 0 | 0.0 | 0 | 0 | 0 | 0.00 |
| Total | AHB | 79 | 119.0 | 84 | 46 | 141 | 1.57 |
| Total | HHB | 87 | 142.1 | 118 | 50 | 146 | 1.38 |
| Total | LHB | 133 | 70.0 | 61 | 27 | 69 | 1.37 |
| Total | RHB | 162 | 191.1 | 141 | 69 | 218 | 1.50 |
| Total | 166 | 261.1 | 202 | 96 | 287 | 1.47 |
| Date | Transaction |
| 2016-11-01 | Roberto Mayo has retired from the Free Agency Pool |
| 2016-04-08 | The Minnesota Polars have waived Roberto Mayo. |
| 2015-08-16 | The Minnesota Polars have promoted Randy Campbell to the major league team. The Minnesota Polars have promoted Gus Shaw to the major league team. The Minnesota Polars have designated Mark Lukon for assignment. The Minnesota Polars have designated Roberto Mayo for assignment. |
| 2015-04-11 | The Minnesota Polars have acquired Roberto Mayo from the waiver wire. |
| 2015-04-01 | The Colorado Rams have promoted Al Mayo to the major league team. The Colorado Rams have waived Roberto Mayo. |
| 2014-08-03 | The Colorado Rams have placed Roberto Mayo on the trade block. |
| 2014-04-01 | The Colorado Rams have promoted Jason Hale to the major league team. The Colorado Rams have promoted Roberto Mayo to the major league team. The Colorado Rams have waived Akira Kubo. The Colorado Rams have waived Deivi Ralston. |
| 2014-03-25 | The Colorado Rams have acquired Roberto Mayo from the waiver wire. |
| 2013-08-13 | The Chicago Windy Monkeys have waived Roberto Mayo. |
| 2008-05-12 | The Chicago Windy Monkeys have sent Roberto Mayo down to the minors. |
| 2008-04-21 | The Chicago Windy Monkeys have promoted Roberto Mayo to the major league team. The Chicago Windy Monkeys have sent Chicken Storm to the minors. |
| 2007-08-31 | The Chicago Windy Monkeys have sent Roberto Mayo down to the minors. |
| 2006-04-01 | The Chicago Windy Monkeys have promoted Roberto Mayo to the major league team. |