| 07/11/2021 |
Drafted by the Boston Red Sox in the 1st round of the 2021 MLB June Amateur Draft from Eastlake HS (Chula Vista, CA). |
| 03/14/2025 |
Named the #71 prospect in the MLB |
| 03/18/2025 |
Named the #71 prospect in the MLB |
| 05/24/2025 |
Boston Red Sox selected the contract of SS Marcelo Mayer from Worcester Red Sox. [Auto] |
| 06/27/2025 |
Boston Red Sox placed 3B Marcelo Mayer on the bereavement list. [Auto] |
| 06/30/2025 |
Boston Red Sox activated 3B Marcelo Mayer from the bereavement list. [Auto] |
| 07/25/2025 |
Boston Red Sox placed 3B Marcelo Mayer on the 10-day injured list retroactive to July 24, 2025. Right wrist sprain. [Auto] |
| 09/21/2025 |
Injured (strained hamstring),day-to-day for 2 weeks. |
| 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): Contact: 45 (50); Power: 50 (55); Eye: 45 (60). |
| 04/15/2026 |
Hits three home runs against the Syracuse Mets, going 3-4 with 5 RBI and 3 runs scored! |
| 04/20/2026 |
Wins the IL Player of the Week Award. |
| 07/17/2026 |
Goes 0-4 against the Syracuse Mets, ending his hitting streak at 36 games. |
| 10/25/2026 |
Wins the 2026 IL Platinum Stick Award at 3B. |
| 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): Contact: 45 (50); Power: 50 (50); Eye: 45 (50). |
| 05/13/2027 |
Injured on 05/11/2027, diagnosed with a torn ligament in his thumb, will miss 2-3 weeks. |
| 05/25/2027 |
Suffered setback in recovery from injury, requires surgery and will miss another 3 months. |
| 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): Contact: 45 (50); Power: 50 (50); Eye: 45 (50). |
| 05/18/2028 |
Injured (bruised thigh),day-to-day for 4 days. |
| 09/04/2028 |
Injured (back tightness),day-to-day for 5 days. |
| 09/15/2028 |
Goes 5-6 against the Indianapolis Indians, with 2 2B, 1 HR, 2 RBI and 2 R. |
| 09/18/2028 |
Wins the IL Player of the Week Award. |
| 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): Contact: 45 (45); Power: 50 (50); Eye: 45 (50). |
| 01/06/2029 |
Designated for assignment and placed on waivers by the Boston Red Sox. |
| 04/09/2029 |
Wins the MLB AL Player of the Week Award. |
| 05/01/2029 |
Injured (strained hamstring),out for 6 weeks. |
| 08/11/2029 |
Designated for assignment and placed on waivers by the Boston Red Sox. |
| 08/24/2029 |
Injured (torn fingernail),day-to-day for 3 days. |
| 11/24/2029 |
Received a 1-year contract through automatic renewal worth a total of $760,000. |
| 01/01/2030 |
OSA scouting updated ratings (potential): Contact: 45 (45); Power: 50 (50); Eye: 45 (45). |
| 03/21/2030 |
Was claimed off waivers by St. Louis while with Boston. |
| 11/06/2030 |
Signed a 1-year contract extension worth a total of $2,920,000 with the St. Louis Cardinals organization. |
| 01/01/2031 |
OSA scouting updated ratings (potential): Contact: 45 (45); Power: 50 (50); Eye: 45 (45). |
| 04/24/2031 |
Injured (patellar tendinitis),out for 2 weeks. |
| 05/10/2031 |
Injured (intercostal strain),out for one week. |
| 05/28/2031 |
Injured (back tightness),day-to-day for 3 days. |
| 07/14/2031 |
Wins the IL Player of the Week Award. |
| 08/01/2031 |
Wins the IL Batter of the Month Award. |
| 08/23/2031 |
Injured on 08/20/2031, diagnosed with a sprained ankle, will miss 6 weeks. |
| 11/19/2031 |
Received a 1-year contract through arbitration worth a total of $5,193,400. |
| 01/01/2032 |
OSA scouting updated ratings (potential): Contact: 45 (45); Power: 50 (50); Eye: 45 (45). |
| 09/29/2032 |
Injured (strained hamstring),day-to-day for 3 weeks. |
| 11/06/2032 |
Signed a 1-year contract extension worth a total of $7,300,000 with the St. Louis Cardinals organization. |
| 11/27/2032 |
Drafted in the 2032 expansion draft from the St. Louis Cardinals by the El Paso Bisons. (Round 33, Pick 1, 65th overall pick). |
| 01/01/2033 |
OSA scouting updated ratings (potential): Contact: 45 (45); Power: 50 (50); Eye: 50 (50). |
| 04/03/2033 |
Injured on 03/30/2033, diagnosed with a strained hamstring, will miss 6 weeks. |
| 07/24/2033 |
Injured (fractured foot),out for 5 weeks. |
| 10/24/2033 |
Signed a 1-year contract extension worth a total of $9,500,000 with the El Paso Bisons organization. |
| 01/01/2034 |
OSA scouting updated ratings (potential): Contact: 45 (45); Power: 50 (50); Eye: 50 (50). |
| 02/17/2034 |
Injured (calf soreness),day-to-day for one week. |
| 03/27/2034 |
Was claimed off waivers by Arizona while with El Paso. |
| 04/01/2034 |
Injured (knee soreness),day-to-day for one week. |
| 04/13/2034 |
Was claimed off waivers by Austin while with Arizona. |
| 04/21/2034 |
Injured on 04/20/2034, diagnosed with a sore knee, is day-to-day. |
| 05/05/2034 |
Injured (strained hamstring),out for 7-8 weeks. |
| 08/08/2034 |
Injured on 08/07/2034, diagnosed with back tightness, is day-to-day. |
| 11/11/2034 |
Became a free agent. |
| 01/01/2035 |
OSA scouting updated ratings (potential): Contact: 45 (45); Power: 50 (50); Eye: 55 (55). |
| 01/01/2036 |
OSA scouting updated ratings (potential): Contact: 45 (45); Power: 50 (50); Eye: 55 (55). |
| 02/06/2036 |
Signed a minor league contract with majors option with the Pittsburgh Pirates organization. |
| 02/22/2036 |
Injured (back tightness),day-to-day for 1 day. |
| 03/02/2036 |
Injured on 03/01/2036, diagnosed with a sore knee, is day-to-day. |
| 04/30/2036 |
Injured (knee soreness),day-to-day for one week. |
| 05/09/2036 |
Injured (flu-like symptoms),day-to-day for 4 days. |
| 06/24/2036 |
Injured (hamstring strain),out for 3 weeks. |