2B · 2026
Marcelo Mayer
- Age
- 24
- B/T
- L/R
- Height
- 6' 3"
- Weight
- 188 lb
- Born
- December 12, 2002 in Chula Vista, CA, USA
- MLB debut
- May 24, 2025
- Drafted
- 2021, round 1
- High school
- Eastlake
- dbWAR
- .1 2 season(s)
- PA
- 228
- AVG
- .220
- OBP
- .282
- SLG
- .312
- wRC+
- 65 100 = avg
Marcelo Mayer is a second baseman for the Boston Red Sox. In 2026 he hit 3 home runs and knocked in 22 RBIs, notching 45 hits across 228 plate appearances in 69 games. His batting average was .220, 9.9% lower than the league average of .244. He reached base at a .282 clip and slugged .312, for an OPS of .594, 17.4% lower than the league mark of .719 — 13th of 15 on his team, and 368th of 417 among MLB batters with 100+ plate appearances. He averaged 85.8 mph off the bat, hit 36.2% of balls in play at 95 mph or better and made contact on 73.5% of his swings. Adjusted for his ballpark and league, his 65 wRC+ puts his offence 35% below average. That comes to 0.0 dbWAR — -9.4 runs with the bat, +0.3 on the bases, +1.6 for the position he plays, against replacement level. It includes no fielding: defensive runs are proprietary and are not estimated here, so the figure credits playing a demanding position but not playing it well.
League context
Percentile among qualified batters, 2026.
How the WAR is built
Runs above replacement, 2026. These four terms sum to +0.1 runs, divided by runs-per-win to give WAR.
WAR by season
Platoon splits
How he hits left- and right-handed pitching.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHP | 18 | 17 | 8 | 2 | 0 | 2 | .471 | .444 | .941 | .562 | 11.1% |
| vs RHP | 210 | 188 | 37 | 1 | 16 | 42 | .197 | .268 | .255 | .243 | 20.0% |
Spray chart
Where every ball he put in play landed, 2026.
Loading 164 batted balls…
Hot and cold zones
Batting average by pitch location, 2026.
Situational hitting
How Marcelo Mayer hits by base state, outs, score and late-game pressure — each read against his own season line.
| Situation | PA | AB | H | HR | RBI | BB | SO | AVG | OBP | SLG | wOBA |
|---|---|---|---|---|---|---|---|---|---|---|---|
| All situations | 228 | — | — | — | — | — | — | .220 | .282 | .312 | .269 |
| Bases empty | 111 | 102 | 23 | 2 | 2 | 8 | 20 | .225 | .288 | .343 | .284 |
| Runner on first | 53 | 49 | 9 | 1 | 3 | 3 | 15 | .184 | .231 | .265 | .225 |
| Runners on | 117 | 103 | 22 | 1 | 20 | 8 | 24 | .214 | .276 | .282 | .254 |
| RISP | 64 | 54 | 13 | 0 | 17 | 5 | 9 | .241 | .313 | .296 | .278 |
Runners on includes runners in scoring position, which is the convention every reference uses. Counted from play-by-play, 2026.
Batting
Standard and advanced, by season.
| Trend | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 69 | 228 | 45 | 3 | 22 | 3 | 16 | 44 | .220 | .282 | .312 | .093 | .261 | 7.0% | 19.3% | .269 | -9.4 | 65 | 0.0 | |
| 2025 | 42 | 136 | 29 | 4 | 10 | 0 | 8 | 41 | .228 | .272 | .402 | .173 | .301 | 5.9% | 30.1% | .291 | -2.8 | 83 | 0.1 |
Head to head
Put Marcelo Mayer beside up to three others.
Similar players
Nearest 2026 seasons by discipline, contact, power and speed, on rate statistics rather than totals.
wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.