| 08/05/2019 |
Signed by the Pittsburgh Pirates as an international free agent. |
| 07/01/2025 |
C Omar Alfonzo assigned to Altoona Curve from Greensboro Grasshoppers. [Auto] |
| 01/01/2026 |
OSA scouting updated ratings (potential): Contact: 40 (50); Power: 45 (55); Eye: 50 (50). |
| 08/28/2026 |
Injured on 08/27/2026, diagnosed with a concussion, will miss 7 weeks. |
| 12/19/2026 |
Added to the secondary (40-man) roster for the Pittsburgh Pirates. |
| 01/01/2027 |
OSA scouting updated ratings (potential): Contact: 45 (50); Power: 50 (55); Eye: 50 (50). |
| 03/23/2027 |
Outstandingly completed training to improve his defense at catcher at the Pittsburgh Pirates development complex. |
| 09/01/2027 |
Wins the MLB NL Rookie of the Month Award. |
| 11/30/2027 |
Received a 1-year contract through automatic renewal worth a total of $740,000. |
| 01/01/2028 |
OSA scouting updated ratings (potential): Contact: 45 (50); Power: 55 (55); Eye: 50 (50). |
| 04/26/2028 |
Injured (knee contusion),day-to-day for 2 weeks. |
| 05/09/2028 |
Suffered setback in recovery from injury, will miss another one week. |
| 07/16/2028 |
Was selected to the 2028 Major League Baseball All-Star Game. |
| 11/26/2028 |
Received a 1-year contract through automatic renewal worth a total of $740,000. |
| 01/01/2029 |
OSA scouting updated ratings (potential): Contact: 45 (50); Power: 65 (65); Eye: 50 (50). |
| 11/24/2029 |
Received a 1-year contract through automatic renewal worth a total of $740,000. |
| 01/01/2030 |
OSA scouting updated ratings (potential): Contact: 50 (50); Power: 65 (70); Eye: 50 (50). |
| 10/10/2030 |
Signed a 5-year contract extension worth a total of $57,560,000 with the Pittsburgh Pirates organization. |
| 12/06/2030 |
Unsuccessfully completed training to learn a new position at the Pittsburgh Pirates development complex. |
| 01/01/2031 |
OSA scouting updated ratings (potential): Contact: 45 (45); Power: 70 (70); Eye: 50 (50). |
| 03/12/2031 |
Injured (concussion),day-to-day for one week. |
| 01/01/2032 |
OSA scouting updated ratings (potential): Contact: 45 (45); Power: 65 (70); Eye: 50 (50). |
| 03/23/2032 |
Detrimentally completed training to learn a new position at the Pittsburgh Pirates development complex. |
| 06/17/2032 |
Hits three home runs against the Cincinnati Reds, going 4-5 with 8 RBI and 3 runs scored! |
| 06/21/2032 |
Wins the MLB NL Player of the Week Award. |
| 01/01/2033 |
OSA scouting updated ratings (potential): Contact: 45 (45); Power: 65 (65); Eye: 50 (50). |
| 09/05/2033 |
Wins the MLB NL Player of the Week Award. |
| 01/01/2034 |
OSA scouting updated ratings (potential): Contact: 45 (45); Power: 65 (65); Eye: 50 (50). |
| 04/10/2034 |
Injured (forearm cramp),day-to-day for 4 days. |
| 01/01/2035 |
OSA scouting updated ratings (potential): Contact: 45 (45); Power: 55 (55); Eye: 50 (50). |
| 11/07/2035 |
Became a free agent. |
| 12/26/2035 |
Signed a 1-year contract worth a total of $4,920,000 with the Arizona Diamondbacks organization. |
| 01/01/2036 |
OSA scouting updated ratings (potential): Contact: 45 (45); Power: 55 (55); Eye: 50 (50). |
| 03/18/2036 |
Unsuccessfully completed training to improve his base-stealing technique at the Arizona Diamondbacks development complex. |
| 05/01/2036 |
Injured (bruised wrist),day-to-day for 1 day. |
| 05/13/2036 |
Injured (sore ankle),day-to-day for 3 days. |
| 05/13/2036 |
Goes 5-6 against the Austin Armadillos, with 3 2B, 1 RBI and 0 R. |
| 06/26/2036 |
Injured (oblique strain),out for one week. |