| 06/12/2017 |
Drafted by the Cincinnati Reds in the 7th round of the 2017 MLB June Amateur Draft from University of Florida (Gainesville, FL). |
| 04/08/2022 |
C Mark Kolozsvary assigned to Chattanooga Lookouts. [Auto] |
| 04/16/2022 |
C Mark Kolozsvary roster status changed by Chattanooga Lookouts. [Auto] |
| 04/20/2022 |
Cincinnati Reds recalled C Mark Kolozsvary from Chattanooga Lookouts. [Auto] |
| 05/03/2022 |
Cincinnati Reds optioned C Mark Kolozsvary to Louisville Bats. [Auto] |
| 07/04/2022 |
Cincinnati Reds recalled C Mark Kolozsvary from Louisville Bats. [Auto] |
| 07/05/2022 |
Cincinnati Reds optioned C Mark Kolozsvary to Louisville Bats. [Auto] |
| 07/07/2022 |
Cincinnati Reds recalled C Mark Kolozsvary from Louisville Bats. [Auto] |
| 07/09/2022 |
Cincinnati Reds optioned C Mark Kolozsvary to Louisville Bats. [Auto] |
| 07/09/2022 |
Louisville Bats activated C Mark Kolozsvary. [Auto] |
| 07/23/2022 |
Cincinnati Reds recalled C Mark Kolozsvary from Louisville Bats. [Auto] |
| 08/04/2022 |
Cincinnati Reds optioned C Mark Kolozsvary to Louisville Bats. [Auto] |
| 08/04/2022 |
Louisville Bats activated C Mark Kolozsvary. [Auto] |
| 10/06/2022 |
Cincinnati Reds recalled C Mark Kolozsvary from Louisville Bats. [Auto] |
| 10/14/2022 |
Baltimore Orioles claimed C Mark Kolozsvary off waivers from Cincinnati Reds. [Auto] |
| 01/01/2023 |
OSA scouting updated ratings (potential): Contact: 40 (40); Power: 55 (55); Eye: 50 (50). |
| 09/21/2023 |
Injured (bruised shoulder),day-to-day for 5 days. |
| 01/01/2024 |
OSA scouting updated ratings (potential): Contact: 40 (40); Power: 55 (55); Eye: 50 (55). |
| 07/20/2024 |
Injured (back tightness),day-to-day for 2 weeks. |
| 09/08/2024 |
Injured (fever),out for 4 days. |
| 01/01/2025 |
OSA scouting updated ratings (potential): Contact: 35 (40); Power: 55 (55); Eye: 50 (50). |
| 11/30/2025 |
Became a minor league free agent. |
| 01/01/2026 |
OSA scouting updated ratings (potential): Contact: 40 (40); Power: 55 (55); Eye: 50 (50). |