Reference layer
Current snapshot
| Age | 23 |
| Height | 5' 11" |
| Weight | 193 lb |
| Debut | 2026-04-15 |
Player profile / Chicago White Sox
Sam Antonacci
LF · Bats/Throws L/R · 5' 11", 193 lb · Age 23
Club Chicago White Sox
Position LF
Roster Active
Status Healthy / active roster
Traditional line
Season by season
| PA | R | H | HR | SB | AVG | OBP | SLG | OPS | |
|---|---|---|---|---|---|---|---|---|---|
| 2026 | 304 | 48 | 75 | 6 | 13 | .287 | .381 | .418 | .799 |
| 1 Seasons | 304 | 48 | 75 | 6 | 13 | .287 | .381 | .418 | .799 |
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.
60
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.
| xwOBA preseason | 0.265 |
| xwOBA current pace | 0.367 |
| xwOBA rolling p50 | 0.325 |
| Observed weight | 59% |
xwOBA
0.278
0.301
0.325
0.350
0.372
wOBA
0.355
0.372
0.390
0.409
0.425
ISO
0.085
0.105
0.127
0.149
0.169
K%
12.6%
15.4%
18.6%
21.8%
24.6%
Live percentile strip
Current traits vs projection tick
100th = best in MLB.
Hitting · percentile strip
Barrel%4.8%
46
Exit velocity87.2
38
Hard-hit%36.9%
41
xBA0.359
84
xSLG0.534
58
xwOBA0.367
92
+55 vs proj
BB%7.6%
38
Bat speed68.4
33
K%14.6%
87
+52 vs proj
Defense · percentile strip
Arm Runs-1.0 · LF
22
Arm Strength92.5 · LF
49
Outs Above Avg-1.0 · LF
22
Range Runs-4.7 · LF
6
Baserunning · percentile strip
Base Running Runs1.7 · LF
84
SB Success Rate86.7% · LF
69
Sprint Speed28.2 · LF
73
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 74.8% · rebadged research
92
Avoids Bad TakesHPT 25.7% · rebadged research
44
Correct Decisions70.1% · rebadged research
86
Resists Breaking - horizontalwOBA 0.281 · borderline
68
Resists Breaking - verticalwOBA 0.305 · insufficient sample
6
Resists ChangeupwOBA 0.293 · validated thin sample
19
Resists Cutters + splitterswOBA 0.342 · insufficient sample
24
Resists FastballwOBA 0.413 · validated
1
Resists SinkerwOBA 0.363 · validated
38
SEAGER+ Plate Discipline109
86
Rolling form chart
xwOBA snapshot line
Live snapshot series; true 50/100 PA windows require PA-level logs
Spray profile
Field-coordinate spray profile
143 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 | +0.072 |
| wOBA Δ | +0.095 |
negative regression
Regression watch
Running hot. Expect some cooling.
Antonacci’s wOBA sits at 0.390, but the quality of contact underneath says it should be 0.367 — a gap of 0.023, -0.8 standard deviations from the MLB norm over 315 PA. The results have outrun the underlying process; as the sample grows, expect the numbers to drift back toward the deserved level.
Comp Engine · 2026 profile shape
Closest profiles
| Player | Similarity | Agrees on | Open |
|---|---|---|---|
| Benge, Carson NYM · L | 0.74 | Bat speedIsolated power | Player · Projection |
| Garcia, Maikel KC · R | 0.71 | Whiff rateOppo rate | Player · Projection |
| Young, Jacob WSH · R | 0.70 | Pull rateHard-hit rate | Player · Projection |
| Cortes, Carlos ATH · L | 0.66 | Oppo rateBat speed | Player · Projection |
Profile-shape similarity, not results: six weighted feature groups standardized within this season's qualified hitters.
Mithrandir coverage
Module shelf
| Module | Cards | Latest | Signal |
|---|---|---|---|
| Hitting | 2 | 2026-05-08 | Disciplined swing decisions drove the score |
Projection links / recent games
Available detail
| Hitter Projections 20260.295 xwOBA | 7 HR | Projection |
| 2026-05-20 @ SEA0 HR | 0 RBI / 2 Ch | 0 E | 2-4 | K, R, SB |
| 2026-04-17 @ ATH0 HR | 0 RBI / 0 Ch | 0 E | 0-3 | BB, HBP, CS |
| 2026-04-15 vs TB0 HR | 0 RBI / 4 Ch | 0 E | 1-3 | BB, R |