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Marcelo Mayer
Marcelo Mayer
San Francisco Giants • Second Base
Age 23 • 6' 3" • 188 lb
Bats: L • Throws: R
MLB Debut: 2025-05-24
Born: Chula Vista , CA • USA
Draft: 2021
2026 Stats
G
70
AB
205
H
45
HR
3
RBI
22
R
19
SB
3
AVG
.220
OBP
.282
SLG
.312
OPS
.594
Career Stats
G
120
AB
347
H
75
HR
7
RBI
32
R
39
SB
3
AVG
.216
OBP
.274
SLG
.334
OPS
.608
Year-by-Year Hitting
Year Team GPAABH HRRBISB AVGOBPSLGOPSAwards
2025 BOS 44 136 127 29 4 10 — .228 .272 .402 .674
2026 Total 76 245 220 46 3 22 3 .209 .275 .295 .570
Spring Training
Hitting
YearTeamGPAABHHRRBISBAVGOBPSLGOPS
2022 BOS 454— ——— .000.200.000.200
2023 BOS 5993 ——1 .333.333.444.777
2024 BOS 2441 ——— .250.250.500.750
2025 BOS 20443612 111— .333.455.528.983
2026 BOS 1447399 12— .231.362.333.695
Game Logs
Season selector loads one year at a time.
Hitting
Date Opponent AB H 2B 3B HR RBI R BB SO
2026-09-27 vs LAD 4 1 0 0 0 0 0 0 1
2026-09-26 vs LAD 2 0 0 0 0 0 0 0 0
2026-09-25 vs LAD 3 0 0 0 0 0 0 0 1
2026-09-23 vs MIN 2 0 0 0 0 0 0 2 1
2026-09-22 vs MIN 0 0 0 0 0 0 0 0 0
2026-09-21 vs MIN 4 0 0 0 0 0 0 0 4
2026-06-25 vs NYY 4 0 0 0 0 0 0 0 2
2026-06-24 @ COL 2 1 1 0 0 0 1 0 0
2026-06-22 @ COL 4 1 1 0 0 0 0 0 0
2026-06-21 @ SEA 2 0 0 0 0 0 0 0 2
2026-06-20 @ SEA 4 1 0 0 0 1 0 0 2
2026-06-19 @ SEA 4 2 1 0 0 3 0 0 1
2026-06-17 vs TOR 3 0 0 0 0 0 0 1 0
2026-06-16 vs TOR 2 0 0 0 0 0 0 2 1
2026-06-14 vs TEX 3 1 0 0 0 1 0 0 1
2026-06-13 vs TEX 4 1 0 0 0 0 1 0 2
2026-06-12 vs TEX 3 0 0 0 0 0 0 1 0
2026-06-09 @ TB 3 1 1 0 0 2 0 0 0
2026-06-08 @ TB 2 1 0 0 1 1 1 0 0
2026-06-07 @ NYY 2 0 0 0 0 0 0 0 0
2026-06-05 @ NYY 1 0 0 0 0 0 0 0 1
2026-06-03 vs BAL 4 1 0 0 0 0 0 0 0
2026-06-02 vs BAL 2 0 0 0 0 1 0 0 0
2026-05-31 @ CLE 4 1 0 0 0 0 1 0 0
2026-05-30 @ CLE 1 0 0 0 0 0 2 1 0
2026-05-29 @ CLE 4 2 0 0 0 1 1 0 1
2026-05-28 vs ATL 1 0 0 0 0 0 0 0 0
2026-05-27 vs ATL 4 2 0 0 0 1 1 0 0
2026-05-26 vs ATL 2 0 0 0 0 0 0 0 1
2026-05-24 vs MIN 4 1 0 0 0 1 0 0 1
2026-05-23 vs MIN 2 0 0 0 0 0 0 0 0
2026-05-22 vs MIN 3 0 0 0 0 1 0 0 1
2026-05-20 @ KC 3 1 0 0 0 0 0 1 0
2026-05-19 @ KC 0 0 0 0 0 0 1 0 0
2026-05-18 @ KC 4 1 0 0 0 0 0 0 1
2026-05-17 @ ATL 4 0 0 0 0 0 0 0 1
2026-05-16 @ ATL 4 0 0 0 0 0 0 0 1
2026-05-15 @ ATL 3 1 0 0 1 1 1 1 1
2026-05-14 vs PHI 2 0 0 0 0 0 0 0 2
2026-05-13 vs PHI 3 1 0 0 0 0 0 0 0
2026-05-12 vs PHI 4 1 0 0 0 0 0 0 0
2026-05-10 vs TB 3 0 0 0 0 0 0 1 1
2026-05-08 vs TB 4 0 0 0 0 0 0 0 1
2026-05-07 vs TB 4 0 0 0 0 0 1 0 0
2026-05-06 @ DET 3 1 0 0 0 0 1 1 2
2026-05-04 @ DET 4 2 0 0 0 1 0 0 1
2026-05-03 vs HOU 4 1 0 0 0 0 0 0 2
2026-05-02 vs HOU 3 0 0 0 0 0 0 0 1
2026-05-01 vs HOU 4 1 0 0 0 0 0 0 1
2026-04-29 @ TOR 2 1 0 0 0 0 0 0 0
2026-04-28 @ TOR 3 1 0 0 0 0 0 0 0
2026-04-27 @ TOR 3 2 0 0 0 1 1 1 0
2026-04-26 @ BAL 4 1 0 0 0 1 0 0 0
2026-04-25 @ BAL 0 0 0 0 0 0 0 0 0
2026-04-24 @ BAL 4 2 1 0 0 1 0 0 0
2026-04-23 vs NYY 3 1 1 0 0 1 0 0 0
2026-04-21 vs NYY 1 1 1 0 0 0 0 0 0
2026-04-20 vs DET 3 1 0 0 0 0 1 0 0
2026-04-19 vs DET 1 0 0 0 0 0 0 0 0
2026-04-17 vs DET 3 0 0 0 0 0 0 1 1
2026-04-15 @ MIN 5 1 0 0 0 0 0 0 0
2026-04-13 @ MIN 3 0 0 0 0 0 0 1 0
2026-04-12 @ STL 5 1 0 0 0 0 0 0 0
2026-04-11 @ STL 2 1 0 0 0 0 0 2 0
2026-04-10 @ STL 4 1 0 0 0 0 0 0 1
2026-04-07 vs MIL 2 0 0 0 0 0 0 0 1
2026-04-06 vs MIL 3 0 0 0 0 0 0 0 0
2026-04-05 vs SD 4 0 0 0 0 0 0 0 2
2026-04-04 vs SD 3 0 0 0 0 1 0 0 2
2026-04-03 vs SD 2 2 1 0 1 2 2 0 0
2026-04-01 @ HOU 1 0 0 0 0 0 0 0 1
2026-03-31 @ HOU 3 0 0 0 0 0 1 1 1
2026-03-30 @ HOU 2 0 0 0 0 0 0 1 0
2026-03-29 @ CIN 2 0 0 0 0 0 0 0 1
2026-03-28 @ CIN 5 1 1 0 0 0 0 0 3
2026-03-26 @ CIN 2 2 1 0 0 0 2 0 0
Transactions
Entire history • newest first.
2026-09-21
San Francisco Giants activated 2B Marcelo Mayer from the 10-day injured list.
2026-08-13
San Francisco Giants sent 2B Marcelo Mayer on a rehab assignment to Sacramento River Cats.
2026-08-03
Boston Red Sox traded 2B Marcelo Mayer to San Francisco Giants for LHP Erik Miller and CF Carlos Gutierrez.
2026-06-26
Boston Red Sox placed 2B Marcelo Mayer on the 10-day injured list. Bone stress reaction to the left ulna.
2026-04-16
3B Marcelo Mayer changed number to 11.
2026-04-15
3B Marcelo Mayer changed number to 42.
2025-12-30
3B Marcelo Mayer changed number to 11.
2025-11-06
Boston Red Sox activated 3B Marcelo Mayer from the 60-day injured list.
2025-09-01
Boston Red Sox transferred 3B Marcelo Mayer from the 10-day injured list to the 60-day injured list. Right wrist sprain.
2025-07-25
Boston Red Sox placed 3B Marcelo Mayer on the 10-day injured list retroactive to July 24, 2025. Right wrist sprain.
2025-06-30
Boston Red Sox activated 3B Marcelo Mayer from the bereavement list.
2025-06-27
Boston Red Sox placed 3B Marcelo Mayer on the bereavement list.
2025-05-24
Boston Red Sox selected the contract of SS Marcelo Mayer from Worcester Red Sox.
2025-01-28
Boston Red Sox invited non-roster SS Marcelo Mayer to spring training.
2024-03-11
SS Marcelo Mayer roster status changed by Boston Red Sox.
2024-03-11
SS Marcelo Mayer assigned to Boston Red Sox.
2023-03-12
SS Marcelo Mayer assigned to Boston Red Sox.
2023-03-12
SS Marcelo Mayer roster status changed by Boston Red Sox.
2023-03-12
SS Marcelo Mayer roster status changed by Boston Red Sox.
2022-03-24
SS Marcelo Mayer and assigned to Boston Red Sox.
2021-07-22
Boston Red Sox signed SS Marcelo Mayer.
Scouting Report
Statcast-style percentiles • Basenerd theme
Season 2026
No Statcast percentile data available.
Spray Chart
Hits only • Stadium overlay
1B 2B 3B HR
MLBAM-style coords scaled into stadium viewBox. Home plate baseline ≈ (125, 199). Stadium SVG: giants.svg.
Results by Pitch Type
Pitch # Usage% Zone% Whiff% AVG HardHit%
4-Seam Fastball 270 29.7% 55.9% 14.2% .277 35.2%
Changeup 174 19.2% 35.1% 45.1% .118 29.2%
Slider 113 12.4% 43.4% 38.8% .188 55.0%
Sinker 100 11.0% 56.0% 10.0% .294 35.5%
Curveball 82 9.0% 35.4% 33.3% .211 30.8%
Splitter 60 6.6% 51.7% 25.0% .125 38.5%
Cutter 51 5.6% 54.9% 16.1% .091 18.2%
Sweeper 36 4.0% 44.4% 41.2% .167 33.3%
Knuckle Curve 21 2.3% 38.1% 41.7% .000 50.0%
Slurve 1 0.1% 0.0% 0.0% .000 0.0%
Total 908 100.0% 47.2% 26.2% .209 35.7%
Results by Pitch Category
Category # Usage% Zone% Whiff% AVG HardHit%
Fastball 421 46.4% 55.8% 13.5% .264 33.3%
Breaking 253 27.9% 40.3% 37.8% .183 44.7%
Offspeed 234 25.8% 39.3% 40.0% .120 32.4%
Total 908 100.0% 47.2% 26.2% .209 35.7%
MLB Avg - - 50.6% 25.3% .245 41.0%
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