| 07/12/2021 |
Drafted by the Los Angeles Dodgers in the 5th round of the 2021 MLB June Amateur Draft from University of Connecticut (Storrs, CT). |
| 04/15/2025 |
RHP Ben Casparius changed number to 42. [Auto] |
| 04/16/2025 |
RHP Ben Casparius changed number to 78. [Auto] |
| 10/01/2025 |
Wins the 2025 Pacific Coast League Round 1 with the Oklahoma City Comets! |
| 11/25/2025 |
Received a 1-year contract through automatic renewal worth a total of $760,000. |
| 01/01/2026 |
OSA scouting updated ratings (potential): Stuff: 50 (50); Movement: 45 (50); Control: 70 (80). |
| 10/06/2026 |
Designated for assignment and placed on waivers by the Los Angeles Dodgers. |
| 10/09/2026 |
Was claimed off waivers by Chicago while with Los Angeles. |
| 10/17/2026 |
Finished 2nd in 2026 PCL Reliever of the Year voting. |
| 11/28/2026 |
Received a 1-year contract through automatic renewal worth a total of $760,000. |
| 01/01/2027 |
OSA scouting updated ratings (potential): Stuff: 50 (50); Movement: 45 (45); Control: 70 (80). |
| 11/30/2027 |
Received a 1-year contract through automatic renewal worth a total of $760,000. |
| 01/01/2028 |
OSA scouting updated ratings (potential): Stuff: 50 (50); Movement: 45 (45); Control: 70 (75). |
| 02/16/2028 |
Unsuccessfully completed training to increase his endurance on the mound at the Chicago White Sox development complex. |
| 11/26/2028 |
Received a 1-year contract through automatic renewal worth a total of $760,000. |
| 01/01/2029 |
OSA scouting updated ratings (potential): Stuff: 50 (50); Movement: 45 (45); Control: 65 (70). |
| 07/29/2029 |
Was traded by the Chicago White Sox to the Cleveland Guardians in exchange for C Keith Hawk and LF Francisco Najera. |
| 11/05/2029 |
Signed a 1-year contract extension worth a total of $1,540,000 with the Cleveland Guardians organization. |
| 01/01/2030 |
OSA scouting updated ratings (potential): Stuff: 50 (50); Movement: 50 (50); Control: 60 (60). |
| 02/13/2030 |
Outstandingly completed training to increase his endurance on the mound at the Cleveland Guardians development complex. |
| 11/06/2030 |
Signed a 1-year contract extension worth a total of $3,960,000 with the Cleveland Guardians organization. |
| 01/01/2031 |
OSA scouting updated ratings (potential): Stuff: 45 (45); Movement: 50 (50); Control: 60 (60). |
| 02/12/2031 |
Unsuccessfully completed training to increase his endurance on the mound at the Cleveland Guardians development complex. |
| 09/30/2031 |
Injured on 09/28/2031, diagnosed with a tender shoulder, is day-to-day. |
| 11/02/2031 |
Signed a 1-year contract extension worth a total of $6,600,000 with the Cleveland Guardians organization. |
| 11/06/2031 |
Wins the 2031 MLB AL Great Glove Award at P. |
| 01/01/2032 |
OSA scouting updated ratings (potential): Stuff: 45 (45); Movement: 50 (50); Control: 60 (60). |
| 02/18/2032 |
Successfully completed training to increase his endurance on the mound at the Cleveland Guardians development complex. |
| 02/19/2032 |
Injured (sore shoulder),day-to-day for 2 weeks. |
| 05/25/2032 |
Signed a 2-year contract extension worth a total of $18,000,000 with the Cleveland Guardians organization. |
| 07/05/2032 |
Injured on 07/04/2032, diagnosed with a sore wrist, is day-to-day. |
| 11/10/2032 |
Wins the 2032 MLB AL Great Glove Award at P. |
| 01/01/2033 |
OSA scouting updated ratings (potential): Stuff: 45 (45); Movement: 45 (45); Control: 55 (55). |
| 06/05/2033 |
Injured (herniated disc (back)),out for one week. |
| 08/04/2033 |
Injured on 08/02/2033, diagnosed with bone chips in his elbow, will miss 4-5 months. |
| 01/01/2034 |
OSA scouting updated ratings (potential): Stuff: 45 (45); Movement: 50 (50); Control: 55 (55). |
| 05/03/2034 |
Injured (mild calf strain),day-to-day for 1 day. |
| 06/24/2034 |
Injured on 06/21/2034, diagnosed with an arthritic elbow, will miss 4 months. |
| 11/11/2034 |
Became a free agent. |
| 12/29/2034 |
Signed a 1-year contract worth a total of $2,920,000 with the Las Vegas Athletics organization. |
| 01/01/2035 |
OSA scouting updated ratings (potential): Stuff: 45 (45); Movement: 50 (50); Control: 55 (55). |
| 04/12/2035 |
Injured (mild calf strain),day-to-day for one week. |
| 07/16/2035 |
Injured (bone chips (elbow)),out for 6-7 weeks. |
| 11/07/2035 |
Became a free agent. |
| 01/01/2036 |
OSA scouting updated ratings (potential): Stuff: 45 (45); Movement: 50 (50); Control: 50 (50). |
| 01/31/2036 |
Signed a minor league contract with majors option with the Texas Rangers organization. |
| 03/23/2036 |
Injured (back spasms),day-to-day for 1-2 weeks. |
| 04/14/2036 |
Released by the Texas Rangers. |
| 04/16/2036 |
Signed a minor league contract with majors option with the Kansas City Royals organization. |
| 06/08/2036 |
Injured (back spasms),day-to-day for 3 days. |