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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

Exit 9 for $3

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

Fri 7/11 Sat 7/12 Sun 7/13
7Batting 7 TBR 0-0 1• 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 4:44 PM : Manager Alex Cora said Friday that Mayer will get the majority of the playing time at second base moving forward, Mac Cerullo of the Boston Herald reports.
Analysis: The 22-year-old's roster spot appeared in question with Alex Bregman (quadriceps) returning from the injured list Friday, but the Red Sox will keep Mayer in the majors and shift him to the middle infield. The rookie has seen most of his playing time thus far at the hot corner, but he has yet to get on track at the plate with a .234/.272/.421 slash line and 29.8 percent strikeout rate through 37 games. Mayer is starting at the keystone and batting seventh Friday versus the Rays.

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
May 29, 2024 11:30 AM add Exit 9 $2
October 10, 2024 12:52 AM increase Exit 9 $3
November 28, 2024 12:25 PM move Hodgepodge Powered by Aaron Judge (from Exit 9) $3
January 3, 2025 12:20 PM move Exit 9 (from Hodgepodge Powered by Aaron Judge) $3

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