Reference layer
Current snapshot
| Age | 26 |
| Height | 6' 2" |
| Weight | 205 lb |
| Debut | 2023-07-14 |
Player profile / Athletics
Zack Gelof
3B · Bats/Throws R/R · 6' 2", 205 lb · Age 26
Club Athletics
Position 3B
Roster Injured 10-Day
Status IL-10
Traditional line
Season by season
| PA | R | H | HR | SB | AVG | OBP | SLG | OPS | |
|---|---|---|---|---|---|---|---|---|---|
| 2024 | 547 | 60 | 105 | 17 | 25 | .211 | .270 | .362 | .632 |
| 2025 | 101 | 12 | 16 | 2 | 1 | .174 | .230 | .272 | .502 |
| 2026 | 247 | 41 | 62 | 11 | 8 | .273 | .327 | .476 | .803 |
| 4 Seasons | 1195 | 153 | 255 | 44 | 48 | .235 | .295 | .413 | .708 |
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.
43
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 | 0.281 |
| xwOBA current pace | 0.289 |
| xwOBA rolling p50 | 0.285 |
| Observed weight | 54% |
xwOBA
0.249
0.266
0.285
0.304
0.321
wOBA
0.336
0.354
0.374
0.395
0.413
ISO
0.152
0.170
0.190
0.210
0.227
K%
24.2%
25.9%
27.7%
29.5%
31.2%
Live percentile strip
Current traits vs projection tick
100th = best in MLB.
Hitting · percentile strip
Barrel%4.2%
38
-22 vs proj
Exit velocity87.6
43
Hard-hit%41.3%
61
xBA0.310
35
xSLG0.517
53
xwOBA0.289
31
BB%6.2%
21
-18 vs proj
Bat speed72.0
80
K%24.7%
38
+31 vs proj
Defense · percentile strip
Arm Runs-0.2 · 3B
11
Arm Strength91.0 · 3B
80
Outs Above Avg-2.0 · 3B
18
Range Runs0.0 · 3B
48
Baserunning · percentile strip
Base Running Runs2.1 · 3B
88
Bolts6.0 · 3B
58
SB Success Rate100.0% · 3B
93
Sprint Speed28.8 · 3B
88
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 70.1% · rebadged research
73
Avoids Bad TakesHPT 27.8% · rebadged research
25
Correct Decisions69.0% · rebadged research
78
Resists Breaking - horizontalwOBA 0.285 · borderline
57
Resists Breaking - verticalwOBA 0.274 · insufficient sample
68
Resists ChangeupwOBA 0.288 · validated thin sample
29
Resists Cutters + splitterswOBA 0.375 · insufficient sample
3
Resists FastballwOBA 0.320 · validated
83
Resists SinkerwOBA 0.356 · validated
62
SEAGER+ Plate Discipline102
58
Rolling form chart
xwOBA snapshot line
Live snapshot series; true 50/100 PA windows require PA-level logs
Spray profile
Field-coordinate spray profile
117 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 | -0.009 |
| wOBA Δ | +0.077 |
negative regression
Regression watch
Running hot. Expect some cooling.
Gelof’s wOBA sits at 0.374, but the quality of contact underneath says it should be 0.289 — a gap of 0.085, -2.8 standard deviations from the MLB norm over 259 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 |
|---|---|---|---|
| Realmuto, J.T. PHI · R | 0.70 | xwOBA on contactGround-ball rate | Player · Projection |
| Swanson, Dansby CHC · R | 0.69 | Isolated powerSweet-spot rate | Player · Projection |
| Peña, Jeremy HOU · R | 0.61 | Ground-ball rateWhiff rate | Player · Projection |
| Matthews, Brice HOU · R | 0.60 | Chase ratexwOBA on contact | 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 |
|---|---|---|---|
| No Mithrandir card history is available for this player yet. | |||
Projection links / recent games
Available detail
| Hitter Projections 20260.298 xwOBA | 10 HR | Projection |
| 2026-05-20 @ LAA0 HR | 0 RBI / 4 Ch | 0 E | 0-5 | K |
| 2026-04-20 @ SEA0 HR | 0 RBI / 1 Ch | 0 E | 0-4 | 2 K |
| 2026-04-17 vs CWS0 HR | 0 RBI / 0 Ch | 0 E | 0-1 |
| 2026-04-14 vs TEX0 HR | 0 RBI / 0 Ch | 0 E | 0-2 | 2 K |
| 2026-04-13 vs TEX0 HR | 0 RBI / 0 Ch | 0 E | 0-1 | K |