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| Name | Team | Age |
| Mark Heiser | Retired (2026, Age 35) | Died (2060, Age 69) |
| Drafted | Position | Bats/Throws |
| Round 3, Pick 48 (2012) |
RP | R/R |
| League | Option Years
|
Majors Service Time |
| Aaron Fox League | 0 | 2 years (116 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 | 6/24/1991 | |
| WS Rings | WS Appearances | LCS Appearances |
| 0 | 0 | 0 |
| 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 | Opponent | W | L | GS | SV | BS | IP | H | R | ER | BB | SO | WHIP | ERA |
| 09/29/2026 | TEX | 0 | 0 | 1 | 0 | 0 | 8.0 | 8 | 3 | 3 | 1 | 5 | 1.13 | 3.38 |
| 09/24/2026 | WAS | 0 | 0 | 1 | 0 | 0 | 6.1 | 9 | 4 | 4 | 1 | 5 | 1.58 | 5.68 |
| 09/19/2026 | ANA | 0 | 0 | 1 | 0 | 0 | 4.0 | 8 | 8 | 8 | 8 | 3 | 4.00 | 18.00 |
| 09/14/2026 | OAK | 0 | 0 | 1 | 0 | 0 | 9.0 | 6 | 3 | 3 | 2 | 9 | 0.89 | 3.00 |
| 09/09/2026 | SEA | 0 | 0 | 1 | 0 | 0 | 6.0 | 11 | 6 | 6 | 1 | 4 | 2.00 | 9.00 |
| 09/04/2026 | KC | 0 | 0 | 1 | 0 | 0 | 6.2 | 6 | 4 | 4 | 1 | 5 | 1.05 | 5.40 |
| 08/30/2026 | WAS | 0 | 0 | 1 | 0 | 0 | 8.0 | 8 | 8 | 8 | 5 | 7 | 1.63 | 9.00 |
| 08/25/2026 | BOS | 0 | 0 | 1 | 0 | 0 | 6.2 | 7 | 1 | 1 | 1 | 3 | 1.20 | 1.35 |
| 08/20/2026 | OAK | 0 | 0 | 1 | 0 | 0 | 5.1 | 9 | 6 | 6 | 2 | 1 | 2.06 | 10.13 |
| 08/15/2026 | TEX | 0 | 0 | 1 | 0 | 0 | 4.1 | 6 | 3 | 3 | 6 | 3 | 2.77 | 6.23 |
| Show All Games from This Season | ||||||||||||||
| Date | Transaction |
| 2026-11-01 | Mark Heiser has retired from the Cleveland Crime |
| 2024-05-29 | The Cleveland Crime have promoted Mark Heiser to the major league team. The Cleveland Crime have promoted Bill Quinn to the major league team. The Cleveland Crime have designated Kiyokazu Kondo for assignment. The Cleveland Crime have designated Johnny Foiles for assignment. |
| 2024-05-29 | The Cleveland Crime have acquired Mark Heiser from the waiver wire. |
| 2024-03-25 | The Miami Hurricanes have waived Mark Heiser. |
| 2023-10-03 | The Miami Hurricanes have designated Jim Pasley for assignment. The Miami Hurricanes have designated Mel Moore for assignment. The Miami Hurricanes have designated Mark Heiser for assignment. |
| 2023-09-27 | The Miami Hurricanes have promoted Mel Moore to the major league team. The Miami Hurricanes have promoted Mark Heiser to the major league team. The Miami Hurricanes have promoted Jim Pasley to the major league team. |
| 2023-09-27 | The Miami Hurricanes have acquired Mark Heiser from the waiver wire. |
| 2022-04-11 | The Oakland Edge have waived Mark Heiser. |
| 2021-10-11 | The Oakland Edge have acquired Mark Heiser from the waiver wire. |
| 2012-06-21 | The Los Angeles Dodgers have acquired Kenny Ditmar from the waiver wire. The Los Angeles Dodgers have waived Mark Heiser. |