Show modern player card
| Name | Team | Age |
| John Slayback | Retired (2025, Age 36) | Died (2063, Age 74) |
| Drafted | Position | Bats/Throws |
| Round 1, Pick 11 (2010) |
RP | R/R |
| League | Option Years
|
Majors Service Time |
| Frank Thomas League | 0 | 13 years (155 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 | 10/5/1989 | |
| WS Rings | WS Appearances | LCS Appearances |
| 0 | 1 | 3 |
| Alt Pos (---) | Alt Pos (---) | Alt Pos (---) |
| (0.0 %) | (0.0 %) | (0.0 %) |
Stats | Splits | Playoffs | Energy | Improvements | Past Skills | Awards | Batting | Fielding | Game Log
| Date | Transaction |
| 2025-11-01 | John Slayback has retired from the New York knights |
| 2022-04-20 | A trade has been completed between the New York knights and the Seattle Rainiers of Tacoma. The Seattle Rainiers of Tacoma receive Marv Maloney, Jim Allen from the New York knights in exchange for John Slayback. Protest This Trade. |
| 2022-04-11 | The Seattle Rainiers of Tacoma have placed John Slayback on the trade block. |
| 2022-03-26 | The Seattle Vampires have drafted John Slayback #15 overall in the Expansion Draft. |
| 2021-06-01 | John Slayback of the Los Angeles Blue Devils is injured and is expected to be out 35 days. |
| 2012-04-25 | The Los Angeles Blue Devils have promoted Craig Joost to the major league team. The Los Angeles Blue Devils have promoted John Slayback to the major league team. The Los Angeles Blue Devils have promoted Fred Easterly to the major league team. The Los Angeles Blue Devils have sent Pat Trowbridge to the minors. The Los Angeles Blue Devils have sent Terry Ulisney to the minors. The Los Angeles Blue Devils have sent George Fulgham to the minors. |
| 2010-04-05 | The Los Angeles Blue Devils have promoted Leo Irwin to the major league team. The Los Angeles Blue Devils have promoted Oswaldo Toney to the major league team. The Los Angeles Blue Devils have sent John Slayback to the minors. The Los Angeles Blue Devils have sent Frankie Jackson to the minors. |
| 2010-04-02 | The Los Angeles Blue Devils have auto-promoted John Slayback to the major leagues. |