Marcelo Mayer
Third Baseman · Career Stats, Bio & Records (2025-2026)
Marcelo Mayer is a third baseman who has played in Major League Baseball since 2025 for the Boston Red Sox, a span of 2 seasons. In 120 career games, he has hit .216 with 75 hits, 7 home runs, and 32 RBI.
- AVG (Batting Average):
- Hits divided by at bats. .300 is the traditional mark of an excellent hitter.
- HR (Home Runs):
- Hits on which the batter circled the bases and scored, almost always by clearing the outfield fence.
- RBI (Runs Batted In):
- Runs that scored as a direct result of a batter's plate appearance.
- OPS (On-Base Plus Slugging):
- On-base percentage plus slugging percentage, the quickest single summary of offensive value. .900 or better is star-level.
Data updated
PIV is computed through the 2025 season, so it does not yet include 2026. Every other career total on this page includes 2026 through October 23, 2026.
- Position
- Third Baseman
- Bats / Throws
- L / R
- Height / Weight
- 6'3" / 188 lb
- MLB Debut
- 2025-05-24
- Jersey
- #7
Career Batting Statistics
| G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | OBP | SLG | OPS | PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 120 | 347 | 39 | 75 | 18 | 1 | 7 | 32 | 3 | 26 | 92 | .216 | .274 | .334 | .608 | -168 |
Career AVG .216 vs. league average .245 across their career seasons — 11.6% below league average.
Career OBP .274 vs. league average .317 across their career seasons — 13.6% below league average.
Career SLG .334 vs. league average .402 across their career seasons — 16.9% below league average.
Career OPS .608 vs. league average .719 across their career seasons — 15.4% below league average.
Season-by-Season Batting
Click a stat to plot it across every season.
| Year | Team | Lg | G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | Lg AVG | Lg OBP | Lg SLG | Lg OPS | PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | BOS | AL | 44 | 127 | 20 | 29 | 8 | 1 | 4 | 10 | 0 | 8 | 41 | .228 | .245 (-7%) | .315 (-14%) | .403 (-1%) | .718 (-6%) | -168.2 |
| 2026 | SF | NL | 76 | 220 | 19 | 46 | 10 | 0 | 3 | 22 | 3 | 18 | 51 | .209 | .243 (-14%) | .318 (-14%) | .400 (-26%) | .718 (-21%) | 0 |
| Career · 2 seasons | 120 | 347 | 39 | 75 | 18 | 1 | 7 | 32 | 3 | 26 | 92 | .216 | — | — | — | — | -168 | ||
Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.
Game Log & Splits
View full game log (44 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 19 | 55 | 11 | 13 | 2 | 6 | .236 |
| Away | 25 | 72 | 9 | 16 | 2 | 4 | .222 |
Last 10 Games — Batting
| Date | Tm | Opp | Res | AB | R | H | 2B | 3B | HR | RBI | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-07-23 | BOS | PHI | W | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| 2025-07-21 | BOS | PHI | L | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
| 2025-07-20 | BOS | CHC | W | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2025-07-18 | BOS | CHC | L | 4 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 |
| 2025-07-13 | BOS | TBR | W | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
| 2025-07-12 | BOS | TBR | W | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| 2025-07-11 | BOS | TBR | W | 4 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 1 |
| 2025-07-10 | BOS | TBR | W | 3 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
| 2025-07-09 | BOS | COL | W | 4 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2025-07-08 | BOS | COL | W | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Second Base | 8 |
| Third Base | 39 |
| Shortstop | 2 |
Marcelo Mayer: the record in brief
Marcelo Mayer's major league record starts with the debut on May 24, 2025 and remains open, because the career is ongoing. Mayer played for the Boston Red Sox (2025) and the San Francisco Giants (2026). Mayer is listed as a third baseman at 6-foot-3 and 188 pounds. The bio says Mayer hit left-handed while throwing right-handed. Mayer was born on December 12, 2002, in Chula Vista, CA, USA.
The batting record for Mayer: 120 games, 75 hits in 347 at bats, and a .216 average; the totals also include 7 home runs and 32 RBI. Reaching base at a .274 clip and slugging .334, Mayer carries a .608 OPS. Measured against the leagues Mayer played in, the .216 career average compares with a .245 league average over the same seasons, 11.6% below the league. No season topped the 46 hits of 2026. Mayer drove in a season-high 22 runs in 2026. Even the best average among the busiest seasons, .209 in 2026, did not top the league's .243.
Frequently Asked Questions about Marcelo Mayer
- What years did Marcelo Mayer play?
- Marcelo Mayer played in Major League Baseball from 2025 to 2026.
- Was Marcelo Mayer a pitcher?
- No. Marcelo Mayer was a position player (Third Baseman).
- How many home runs did Marcelo Mayer hit?
- Marcelo Mayer hit 7 career home runs with 75 hits.
- What teams has Marcelo Mayer played for?
- Marcelo Mayer has played for 2 teams: the Boston Red Sox (2025) and the San Francisco Giants (2026).
- What are Marcelo Mayer's career stats?
- In 120 games, Marcelo Mayer has 75 hits, 7 home runs, 32 RBI, 39 runs, and 3 stolen bases, with a .216 batting average.
- What position does Marcelo Mayer play?
- Marcelo Mayer plays primarily as a third baseman, the position where he has appeared in the most games.
- How tall is Marcelo Mayer and how much does he weigh?
- Marcelo Mayer is listed at 6 feet 3 inches and 188 pounds.
- What number does Marcelo Mayer wear?
- Marcelo Mayer wears number 7, according to MLB's 2026 roster data.
- How many home runs has Marcelo Mayer hit each season?
- Marcelo Mayer's home runs by season: 4 in 2025 and 3 in 2026. His most in one season was 4, in 2025.
- What was Marcelo Mayer's career batting average?
- Marcelo Mayer batted .216 over his career, with 75 hits in 347 at bats.
- How many RBI did Marcelo Mayer have?
- Marcelo Mayer drove in 32 runs in his career.