Reference layer
Current snapshot
| Age | 23 |
| Height | 6' 3" |
| Weight | 188 lb |
| Debut | 2025-05-24 |
Player profile / San Francisco Giants
Marcelo Mayer
2B · Bats/Throws L/R · 6' 3", 188 lb · Age 23
Club San Francisco Giants
Position 2B
Roster Current MLB team
Status Healthy / active roster
Traditional line
Season by season
| PA | R | H | HR | SB | AVG | OBP | SLG | OPS | |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 136 | 20 | 29 | 4 | 0 | .228 | .272 | .402 | .674 |
| 2026 | 245 | 19 | 46 | 3 | 3 | .209 | .275 | .295 | .570 |
| 2 Seasons | 381 | 39 | 75 | 7 | 3 | .216 | .274 | .334 | .608 |
At a glance
Season percentile report
The headline weighs outcome stats (xwOBA, barrels); each bar averages its full strip group below. 100 = best in MLB.
25
Offense
percentile
percentile
Rolling projection
Preseason / current pace / Bayesian update
Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.
Pending
Rolling player projection appears after current-season Statcast and projection joins refresh.
Live percentile strip
Current traits vs projection tick
100th = best in MLB.
Hitting · percentile strip
Barrel%4.9%
51
Exit velocity86.4
33
Hard-hit%36.2%
39
xBA0.256
5
xSLG0.385
9
xwOBA0.257
13
BB%7.9%
43
Bat speed72.7
87
K%20.4%
65
Defense · percentile strip
Arm Strength87.7 · 2B
56
Outs Above Avg2.0 · 2B
80
Range Runs-0.3 · 2B
50
Baserunning · percentile strip
Sprint Speed27.4 · 2B
48
SB Success Rate100.0% · 2B
Small sample
Mithrandir+
Plate skills: swing decisions and pitch-type resistance
Our research metrics for how this hitter controls the strike zone and handles each pitch family.
Avoids Bad ChasesST 65.4% · rebadged research
51
Avoids Bad TakesHPT 23.2% · rebadged research
70
Correct Decisions67.8% · rebadged research
67
Resists Breaking - horizontalwOBA 0.273 · borderline
81
Resists Breaking - verticalwOBA 0.271 · insufficient sample
78
Resists ChangeupwOBA 0.245 · validated thin sample
98
Resists Cutters + splitterswOBA 0.296 · insufficient sample
96
Resists FastballwOBA 0.344 · validated
39
Resists SinkerwOBA 0.372 · validated
21
SEAGER+ Plate Discipline103
60
Rolling form chart
xwOBA snapshot line
Live snapshot series; true 50/100 PA windows require PA-level logs
Spray profile
Field-coordinate spray profile
153 Statcast batted-ball coordinates from the pitch-event feed (2026). Direction profile remains as the v1 context layer when coordinate density is limited.
Zone profile
Aggregate zone heatmap
Aggregate zone metrics from seasonal Statcast leaderboards.
Live layer
Delta / regression
| xwOBA Δ | -- |
| wOBA Δ | -- |
negative regression
Regression watch
Running hot. Expect some cooling.
Mayer’s wOBA sits at 0.293, but the quality of contact underneath says it should be 0.257 — a gap of 0.036, -1.2 standard deviations from the MLB norm over 265 PA. The results have outrun the underlying process; as the sample grows, expect the numbers to drift back toward the deserved level.
Mithrandir coverage
Module shelf
| Module | Cards | Latest | Signal |
|---|---|---|---|
| Fielding | 1 | 2026-09-27 | 4 chances | 0 difficult plays | Run Exp -1.009 |
Projection links / recent games
Available detail
| Hitter Projections 20260.295 xwOBA | 8 HR | Projection |
| 2026-05-20 @ KC0 HR | 0 RBI / 2 Ch | 0 E | 1-3 | BB |
| 2026-04-20 vs DET0 HR | 0 RBI / 5 Ch | 0 E | 1-3 | R |
| 2026-04-17 vs DET0 HR | 0 RBI / 5 Ch | 0 E | 0-3 | BB, K |
| 2026-04-15 @ MIN0 HR | 0 RBI / 3 Ch | 0 E | 1-5 |
| 2026-04-13 @ MIN0 HR | 0 RBI / 4 Ch | 0 E | 0-3 | BB |