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Marcelo Mayer BOS SS/3B L 

Born: 12/12/2002 Age: 22

FanGraphs Player Page

2025 OPL OPL Player Page

Signed By

Big Papi memories for $4

On MLB 40-man: YES
Acquired: Drafted 1st Rd (4) '21

Fri 7/11 Sat 7/12 Sun 7/13
7Batting 7 TBR 7:10 PM EDT TBR 4:10 PM EDT TBR 1:35 PM EDT

Positions
SS/3B
2026 Earned Positions
3B/SS

All Leagues
Average $4.30 Median $4.00
Old School (5x5)
Average $4.38 Median $4.00

All Leagues
Average $4.30 Median $5.00
Old School (5x5)
Average $3.50 Median $3.00

Roster%
99.69%
Change
7Day 0.3%
30Day 0.92%

2025 OPL 2025 OPL Round 3
OPL Roster%
2.00%
OPL Average Salary
$4.00


July 11, 2025 9:21 AM : Mayer will retain his roster spot after the Red Sox optioned David Hamilton to Triple-A Worcester on Thursday to clear a spot for Alex Bregman's return from a quadriceps injury Friday, Chris Cotillo of MassLive.com reports.
Analysis: Bregman's return was going to present a roster crunch, which meant either Mayer or Hamilton would head to Worcester. Red Sox manager Alex Cora informed Hamilton following Thursday's 4-3 win over the Rays, which means Mayer will stay in the majors and likely occupy the strong side of a platoon at second base with Romy Gonzalez. Mayer had a key at-bat Thursday with a run-scoring double during Boston's three-run seventh inning.

MLB Stats

Batting

YearTeamGPA AB R HR RBI SB AVG
2025BOS37114 107 184900.23364

MILB Stats

Batting

YearTeamGPA AB R HR RBI SB AVG
2021BOS (CPX)26107 91 2531770.27473
2022BOS (A)66308 252 46940160.28571
2022BOS (A+)25116 98 1541310.26531
2023BOS (A+)35164 145 2373450.28966
2023BOS (AA)43190 169 2062040.18935
2024BOS (AA)77335 300 60838130.30667
2025BOS (AAA)43193 170 3194320.27059

Recent Games

Last 10 MLB Games

DateTeamOpponentPAABHBB2B 3BHRRRBIHBPSFSBCS
Jul 10, 2025 BOS TBR 3 3 1 0 1 0 0 1 1 0 0 0 0
Jul 9, 2025 BOS COL 4 4 2 0 0 0 0 1 0 0 0 0 0
Jul 8, 2025 BOS COL 2 2 1 0 0 0 0 1 0 0 0 0 0
Jul 7, 2025 BOS COL 2 2 0 0 0 0 0 0 0 0 0 0 0
Jul 6, 2025 BOS @WSN 2 2 0 0 0 0 0 0 0 0 0 0 0
Jul 5, 2025 BOS @WSN 0 0 0 0 0 0 0 0 0 0 0 0 0
Jul 4, 2025 BOS @WSN 5 5 2 0 0 0 0 1 1 0 0 0 0
Jul 2, 2025 BOS CIN 4 4 1 0 1 0 0 1 0 0 0 0 0
Jul 1, 2025 BOS CIN 3 3 0 0 0 0 0 0 0 0 0 0 0
Jun 30, 2025 BOS CIN 5 5 2 0 1 0 0 1 0 0 0 0 1
Totals 30 30 9 0 3 0 0 6 2 0 0 0 1

Last 10 MILB Games

DateLevelTeamOpponentPAABHBB2B 3BHRRRBIHBPSFSBCS
May 23, 2025 AAA WOR DUR 4 4 2 0 0 0 1 2 2 0 0 0 0
May 21, 2025 AAA WOR DUR 5 2 0 3 0 0 0 1 0 0 0 0 0
May 20, 2025 AAA WOR DUR 5 5 2 0 0 0 0 1 1 0 0 0 0
May 18, 2025 AAA WOR @BUF 5 5 0 0 0 0 0 0 0 0 0 0 0
May 17, 2025 AAA WOR @BUF 5 5 2 0 0 0 0 0 1 0 0 1 0
May 16, 2025 AAA WOR @BUF 5 3 0 2 0 0 0 1 0 0 0 0 0
May 15, 2025 AAA WOR @BUF 4 4 0 0 0 0 0 0 0 0 0 0 0
May 14, 2025 AAA WOR @BUF 5 4 2 1 0 0 0 2 1 0 0 0 0
May 13, 2025 AAA WOR @BUF 5 4 2 1 0 0 1 2 3 0 0 0 0
May 11, 2025 AAA WOR @LHV 4 4 0 0 0 0 0 0 0 0 0 0 0
Totals 47 40 10 7 0 0 2 9 8 0 0 1 0

Avg Salary & Roster%

Last 30 days

2026 Position Eligibility Progress

To gain eligibility, a player must have 5 GS or 10 G at a position in the majors, or 20 G at a position in the minors.

Transaction History

Date Transaction Type Team Salary
March 28, 2022 1:20 PM add Big Papi memories $1
October 14, 2022 1:41 AM increase Big Papi memories $2
October 12, 2023 11:05 AM increase Big Papi memories $3
October 10, 2024 12:13 AM increase Big Papi memories $4

Recent Trades for Marcelo Mayer in Old School (5x5)

Date Proposing Team Proposing Team Gives Accepting Team Accepting Team Gives
June 22, 2025 2:41 PM Raleigh Monkey Marcelo Mayer BOS SS/3B L $4 
 Buster Olney Fans Tanner Scott LAD RP L $6 
June 18, 2025 12:30 AM Lamoka🏹 Marcelo Mayer BOS SS/3B L $3 
Kyle Manzardo CLE 1B L $2 
Zyhir Hope LAD A+ OF L $2
 Big Papi memories Ketel Marte ARI 2B S $33 
Ben Casparius LAD SP/RP R $1 
$27 loan
June 17, 2025 10:22 PM The Bryce is Right Ronny Mauricio NYM 2B/3B S $6 
Marcelo Mayer BOS SS/3B L $2 
Roman Anthony BOS OF L $2 
Hunter Barco PIT AAA SP L $2
Walker Jenkins MIN AA OF L $3
 Pistol Pete's Red Dragon Edwin Diaz NYM RP R $23 
Shea Langeliers ATH C R $3 
Seiya Suzuki CHC OF R $18 
Yoshinobu Yamamoto LAD SP R $40 
$69 loan
June 13, 2025 12:30 PM The Devers Story Ended Ceddanne Rafaela BOS 2B/SS/OF R $5 
 🤜Sofa King Good🤛 Marcelo Mayer BOS SS/3B L $5 
June 10, 2025 9:57 AM Trashcan Bangers Gerrit Cole NYY SP R $16 60IL
Josh Jung TEX AAA 3B R $12
Marcelo Mayer BOS SS/3B L $5 
 Rougned Roulette Trea Turner PHI SS R $43 
$12 loan
May 27, 2025 4:00 PM ⚾️Corked🍷 Marcelo Mayer BOS SS/3B L $5 
David Festa MIN SP R $8 
Andrew Painter PHI AAA SP R $7
 da Mets Yoshinobu Yamamoto LAD SP R $42 
$22 loan
May 16, 2025 8:24 PM 🌽 Cans of Corn and Worm Burners 🪱 Moises Ballesteros CHC AAA C L $1
Marcelo Mayer BOS SS/3B L $3 
Carson Williams TBR AAA SS R $4
Dalton Rushing LAD C/OF L $3
Thomas Harrington PIT AAA SP/RP R $1
Bryce Eldridge SFG AAA 1B L $2
Hagen Smith CHW AA SP L $2
 The Neanderthal Mookie Betts LAD 2B/SS/OF R $51 
Corbin Burnes ARI SP R $36 60IL
$74 loan
May 10, 2025 8:26 AM The Balking Dead (@camarcano) Willson Contreras STL C/1B R $13 
Kevin Gausman TOR SP R $16 
Ronald Acuña Jr. ATL OF R $70 
$86 loan 		Secret Treasure Loaf Agustin Ramirez MIA C/1B R $4 
Marcelo Mayer BOS SS/3B L $3 
Ben Casparius LAD SP/RP R $1 
Spencer Jones NYY AAA OF L $1
Colby Thomas ATH OF R $2 
May 2, 2025 1:36 PM work in progress Robert Suarez SDP RP R $5 
Ronel Blanco HOU SP R $5 60IL
 Kenny Lofton Jr's Two Way Contract Marcelo Mayer BOS SS/3B L $3 
Jacob Misiorowski MIL SP/RP R $3 
$5 loan
April 23, 2025 11:39 AM Foulest Tips Brent Rooker ATH OF R $11 
Marcelo Mayer BOS SS/3B L $4 
 Grace's Heaters Blake Snell LAD SP L $25 60IL 
$10 loan