| 05/13/1921 | Brother of Adrian and Stan Czerwinski. |
| 01/01/1937 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 01/01/1938 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 01/01/1939 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 06/22/1939 | Drafted in the 1939 first-year player draft out of high school (Carrick; Pittsburgh, PA) by the Cleveland Foresters. (Round 12, Pick 10, 186th overall pick). |
| 09/14/1939 | Pitches a 7-hit shutout against the Tampa Cigar Kings with 3 strikeouts and 3 BB allowed! |
| 01/01/1940 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 05/11/1940 | Injured (sore thumb),day-to-day for 1 day. |
| 07/01/1940 | Wins the SEL Pitcher of the Month Award. |
| 08/10/1940 | Pitches a 6-hit shutout against the Charlotte Bluebirds with 1 strikeouts and 3 BB allowed! |
| 09/03/1940 | Pitches a 8-hit shutout against the Chattanooga Dynamos with 2 strikeouts and 1 BB allowed! |
| 01/01/1941 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 05/01/1941 | Pitches a 9-hit shutout against the Arlington Patriots with 1 strikeouts and 3 BB allowed! |
| 05/14/1941 | Injured (hamstring soreness),day-to-day for 5 days. |
| 05/26/1941 | Injured (forearm tendinitis),out for one week. |
| 01/01/1942 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 05/03/1942 | Injured (forearm tendinitis),out for 1-2 weeks. |
| 09/12/1942 | Pitches a 4-hit shutout against the Moline Pioneers with 2 strikeouts and 2 BB allowed! |
| 10/01/1942 | Wins the UMVA Pitcher of the Month Award. |
| 01/01/1943 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 06/10/1943 | Pitches a 5-hit shutout against the Miami Sailors with 5 strikeouts and 3 BB allowed! |
| 07/18/1943 | Injured (rotator cuff strain),out for 4-5 weeks. |
| 01/01/1944 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 06/03/1944 | Pitches a 7-hit shutout against the Scranton Silver Stars with 3 strikeouts and 2 BB allowed! |
| 06/13/1944 | Pitches a 3-hit shutout against the Camden Rockets with 4 strikeouts and 0 BB allowed! |
| 07/26/1944 | Injured (sprained ankle),out for 2 months. |
| 10/09/1944 | Injured (bronchitis),day-to-day for 4 days. |
| 01/01/1945 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 05/21/1945 | Pitches a 3-hit shutout against the Louisville Derbies with 2 strikeouts and 4 BB allowed! |
| 09/24/1945 | Wins the 1945 Championship with the Rochester Rooks! |
| 01/01/1946 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 01/01/1947 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 01/01/1948 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 01/01/1949 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 01/01/1950 | OSA scouting updated ratings (potential): Stuff: - (-); Movement: - (-); Control: - (-). |
| 09/19/1950 | Retired from professional baseball. |