
Marcelo Mayer
San Francisco Giants2B/3B
Age: 23
Bats/Throws: L/R
6'3" / 188
DOB: 12/12/2002
(23 years, 10 months, 22 days)
2B/3B
| Season | 2026 | 2027 | Total |
| Team | - - - | FGDC | - - - |
| Level | MLB | PROJ | MLB |
| G | 76 | 102 | 120 |
| PA | 245 | 441 | 381 |
| HR | 3 | 12 | 7 |
| AVG | .209 | .243 | .216 |
| OBP | .275 | .303 | .274 |
| SLG | .295 | .391 | .334 |
| wOBA | .258 | .305 | .269 |
| wRC+ | 59 | 94 | 67 |
| WAR | -0.2 | 1.3 | 0.3 |
2026 Games
Played
Played
2B:46
SS:24
3B:3
DH:2
RosterResource
News
Rotowire: Mayer started at designated hitter and went 0-for-4 in Monday's 5-2 win over the Twins. (9/22/2026)
News Settings
Article Source
Show
Position Player Dashboard
2026
SFG
September 2026
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
9/1 vs. R IL | 9/2 vs. R IL | 9/3 vs. R IL | 9/4 vs. R IL | 9/5 vs. L IL | 9/6 vs. R IL | |
9/7 vs. R IL | 9/8 vs. L IL | 9/9 vs. R IL | 10 | 9/11 vs. L IL | 9/12 vs. R IL | 9/13 vs. R IL |
9/14 vs. L IL | 9/15 vs. R IL | 9/16 vs. L IL | 17 | 9/18 vs. R IL | 9/19 vs. L IL | 9/20 vs. L IL |
9/21 vs. R DH (4) | 9/22 vs. R PR | 9/23 vs. L DH (7) | 24 | 9/25 vs. L 2B-3B (6) | 9/26 vs. L PH-3B | 9/27 vs. L 3B (4) |
28 | 29 | 30 | ||||
Italic = entered as an in-game substitute
2026 Games by Position
Season Summary
| Total Team Games | 163 |
|---|---|
| Available Team Games | 7 |
| Games Started | 4 |
| Pinch Hitter | 1 |
| Pinch Runner | 1 |
| Defensive Replacement | 0 |
Starting Lineup
| All | vs R | vs L | |
|---|---|---|---|
| 1st | 0 | 0 | 0 |
| 2nd | 0 | 0 | 0 |
| 3rd | 0 | 0 | 0 |
| 4th | 2 | 1 | 1 |
| 5th | 0 | 0 | 0 |
| 6th | 1 | 0 | 1 |
| 7th | 1 | 0 | 1 |
| 8th | 0 | 0 | 0 |
| 9th | 0 | 0 | 0 |
Transaction Tracker
Transaction Type
| Date | Team | Transaction Details |
|---|
| Date | Team | Transaction Details |
|---|
No data is available.
| Date | Team | Transaction Details |
|---|---|---|
| 9/21/2026 | SFG | Activated from 10-Day IL |
| 8/3/2026 | SFG | Acquired from Red Sox for RP Erik Miller |
| 6/26/2026 | BOS | Placed on 10-Day IL |
| 9/1/2025 | BOS | Transferred to 60-Day IL |
| 7/25/2025 | BOS | Placed on 10-Day IL |
| 6/30/2025 | BOS | Reinstated from Bereavement List |
| 6/27/2025 | BOS | Placed on Bereavement List |
| 5/24/2025 | BOS | Contract selected from minors |
| Date | Team | Transaction Details |
|---|---|---|
| 9/21/2026 | SFG | Activated from 10-Day IL |
| 8/3/2026 | SFG | Acquired from Red Sox for RP Erik Miller |
| 6/26/2026 | BOS | Placed on 10-Day IL |
| 9/1/2025 | BOS | Transferred to 60-Day IL |
| 7/25/2025 | BOS | Placed on 10-Day IL |
| 6/30/2025 | BOS | Reinstated from Bereavement List |
| 6/27/2025 | BOS | Placed on Bereavement List |
| 5/24/2025 | BOS | Contract selected from minors |
Injury History
| Date | Team | Injury / Surgery | Return Date |
|---|
| Date | Team | Injury / Surgery | Return Date |
|---|
No data is available.
| Date | Team | Injury / Surgery | Return Date |
|---|---|---|---|
| 6/25/2026 | SFG | Stress reaction in forearm | 9/21/2026 |
| 8/20/2025 | BOS | Arthroscopic wrist surgery (right) | 9/29/2025 |
| Date | Team | Injury / Surgery | Return Date |
|---|---|---|---|
| 6/25/2026 | SFG | Stress reaction in forearm | 9/21/2026 |
| 8/20/2025 | BOS | Arthroscopic wrist surgery (right) | 9/29/2025 |

